Users Manual

FCC ID: BXZL951LP

Users Manual

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FCCID_1692432

                                                           TD 92082GB

                            PRELIMINARY




                        Installation Guide
                        L951LP Locator
                        L951A1 Antenna Unit
                        L951A2 Antenna Unit
                        L951A2/2 Antenna Unit
                        L951PA Power Amplifier
                        L951TP Transient Protection Unit




7 May 2012 / Ver. PB7


Installation Guide
LF Location Units                                                                                                                                    TD 92082GB

                                                      PRELIMINARY
Contents


       1 Introduction ................................................................................................................... 1
           1.1 Regulatory Compliance Statements (EU/EFTA only) ...................................................... 2
           1.2 Regulatory Compliance Statements (USA and Canada only) ....................................... 2

       2 Board Descriptions ......................................................................................................... 3
           2.1 L951LP Locator ........................................................................................................................ 3
           2.2 L951A1 Antenna Unit ............................................................................................................ 4
           2.3 L951A2 and L951A2/2 Antenna Units ............................................................................. 5
           2.4 L951PA Power Amplifier ........................................................................................................ 6

       3 Installation...................................................................................................................... 7
           3.1 Mounting .................................................................................................................................... 7
                3.1.1 L951LP Locator............................................................................................................... 7
                3.1.2 L951A1 Antenna Unit .................................................................................................. 8
                3.1.3 L951A2 Antenna Unit................................................................................................... 8
                3.1.4 L951A2/2 Antenna Unit .............................................................................................. 9
                3.1.5 L951PA Power Amplifier........................................................................................... 10
                3.1.6 L951TP Transient Protection Unit ......................................................................... 10
           3.2 L951LP Locator...................................................................................................................... 11
                3.2.1 Connecting Supply Voltage....................................................................................... 11
                3.2.2 Setting Location Code ................................................................................................ 11
                3.2.3 Enabling Immediate Alarm Transmission ............................................................. 12
                3.2.4 Enabling Internal Antenna ........................................................................................ 12
                3.2.5 Connecting Antenna Units ........................................................................................ 13
                3.2.6 Connecting Loops ........................................................................................................ 14
                3.2.7 Connecting Power Amplifier..................................................................................... 15
                3.2.8 Adjusting the Range .................................................................................................. 16
           3.3 L951PA Power Amplifier ..................................................................................................... 16
                3.3.1 Connecting Supply Voltage....................................................................................... 16
                3.3.2 Connecting Antenna Unit.......................................................................................... 17
           3.4 L951TP Transient Protection Unit .................................................................................... 18
           3.5 Locator Monitoring ............................................................................................................... 19

       4 Installation Check ........................................................................................................ 20




7 May 2012 / Ver. PB7


Installation Guide
LF Location Units                                                                             TD 92082GB

                                     PRELIMINARY
1      Introduction




                     Figure 1. L951LP Locator, L951A1 Antenna Unit and L951A2 Antenna Unit.

              The Locator L951LP is a dual output low frequency (LF) inductive location transmitter. It is
              used in the Ascom Paging System and Ascom IP-DECT System, when location function is
              required. It generates coded signals to modulate a magnetic field carrier. Alarm Transmitters
              designed for LF can be used to identify the location from where an alarm is generated.

              L951LP has two antenna channels. Either the internal antenna and one external Antenna
              Unit (L951A1, L951A2, L951A2/2, indoor or outdoor loops) or two external Antenna Units
              can be used for transmission. The Antenna Units connected to L951LP can either cover a
              larger or additional area with the same code, or different areas with code and code + 1.
              When L951LP is used to drive outdoor loops, the L951TP (Transient Protection) must be
              mounted for protection against lightning strikes.

              L951PA Power Amplifier is used when the transmitting range compared to L951LP has to
              be extended. The Power Amplifier is connected to the Locator unit and can feed one
              Antenna Unit (L951A1, L951A2, or L951A2/2). The Power Amplifier does not have any
              internal antenna.

              The following procedure describes the installation of L951LP Locator, Antenna Units
              (L951A1, L951A2, L951A2/2), L951PA Power Amplifier, and L951TP Transient Protection
              Unit.

              As a complement to this Installation Guide, see the System Installation document.



              Unit             Supply voltage                    Power consumption
              L951LP           15–28 V AC or 16–40 V DC          3W
              L951A1           none (passive)
              L951A2           none (passive)
              L951A2/2         none (passive)
              L951PA           15–28 V AC or 16–40 V DC          5.7 W
              L951TP           none (passive)


              IMPORTANT: Protect the unit against current exceding 20 A. Use power cables with 
                         cross-section 3 mm2.




7 May 2012 / Ver. PB7                                                                                     1


Installation Guide
LF Location Units                                                                              TD 92082GB

                                      PRELIMINARY
              Tools, etc., required

              •   Screwdrivers for Phillips and slotted screws
              •   Cutting pliers
              •   Multimeter
              •   a71 Alarm Transceiver, with system test menu enabled
              •   Torx bits, (¼” hexagon) TX–25H
              •   Torx screw, button head A2 4.8X38 PS (4 included with special plug)


       1.1    Regulatory Compliance Statements (EU/EFTA only)
              Hereby, Ascom (Sweden) AB, declares that this equipment is in compliance with the
              essential requirements and other relevant provisions of R&TTE Directive 1999/5/EC.

              The declaration of conformity may be consulted at:
              http://www.ascom.com/ws/products_ws.htm

              This equipment uses frequencies referring to different rules in the various EU&EFTA
              countries.
              A radio communications licence is in most cases necessary for the use of the equipment. The
              frequencies required for operation of the radio equipment must be notified and assigned
              prior to usage of the equipment.


       1.2    Regulatory Compliance Statements (USA and Canada only)

              Information to User

              This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
              conditions: 
              (1) this device may not cause harmful interference, and
              (2) this device must accept any interference received, including interference that may cause
              undesired operation.

              This device complies with Industry Canada licence-exempt RSS standard(s). Operation is
              subject to the following two conditions: 
              (1) this device may not cause interference, and 
              (2) this device must accept any interference, including interference that may cause
              undesired operation of the device.

              Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
              exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: 
              (1) l'appareil ne doit pas produire de brouillage, et 
              (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
              brouillage est susceptible d'en compromettre le fonctionnement.

              Modifications

              Changes or modifications to the equipment not expressly approved by the party responsible
              for compliance could void the user's authority to operate the equipment.

              IC Requirements

              This Class B digital apparatus complies with Canadian ICES-003.

              Cet appareil numérique de la Classe B conforme á la norme NMB-003 du Canada.




7 May 2012 / Ver. PB7                                                                                      2


Installation Guide
LF Location Units                                                                                   TD 92082GB

                                       PRELIMINARY
2      Board Descriptions


       2.1    L951LP Locator
                                                             1 2



                                                             SW04

                                                                               SW01   SW02
                                                               SW05            1      1
                                                                   1
                                                                   2

                                                                       LED01
                                                                               8      8


                                                                                      SW03
                         J05          P02
                               1                                                              J01
                                                                                          6
                            2 LED03   S04
                                    1     3
                       Channel 2
                                      S03
                                         1         3
                         J04                 S02
                                      P01          3
                               1
                               2 LED02                                                    1
                       Channel 1
                                                       L04



                     Figure 2. Circuit board L951LP Locator.

              Connectors
              J01:                 Pin 1 and 2: Supply voltage (polarity independent)
                                   Pin 3 and 4: Monitor in
                                   Pin 5 and 6: Monitor out
                                   (For example Alarm Module T941AM8 or T941AM32 can be used for
                                   monitoring)
              J04:                 Antenna connection, channel 1
              J05:                 Antenna connection, channel 2
              LEDs
              LED01:               Indicates with a flashing light that the master processor and software
                                   are functioning.
              LED02:               Indicates with a steady light that channel 1 is functioning.
              LED03:               Indicates with a steady light that channel 2 is functioning.
              Potentiometers
              P01:                 To adjust the output power of channel 1.
              P02:                 To adjust the output power of channel 2.




7 May 2012 / Ver. PB7                                                                                       3


Installation Guide
LF Location Units                                                                            TD 92082GB

                                     PRELIMINARY
              Jumpers
              S02:               1 – 2: When using internal antenna (L04).
                                 2 – 3: When connecting L951PA Power Amplifier or external antenna A1,
                                 A2, A2/2, or loops to channel 1.
              S03:               1 – 2: Channel 2 sends same code as channel 1.
                                 2 – 3: Channel 2 sends code + 1.
              S04:               1 – 2: When channel 1 only is being used.
                                 2 – 3: When channel 2 is being used.
              Switches
              SW01 and SW02: To set the location code.
              SW03:              Reed relay – for tamper protection
              SW04:              Pin 1, ON: Indicates that immediate transmission is required when the
                                 Alarm Transmitter receives the location code.
                                 Pin 2 should be set to OFF position (ON indicates test mode – only used
                                 in production).
              SW05:              Pin 1 controls channel 1:
                                 OFF: When feeding loops.
                                 ON: When using L951PA, L951A1, L951A2 or L951A2/2
                                 Pin 2 controls channel 2:
                                 OFF: When feeding loops from channel 2.
                                 ON: When using L951PA, L951A1, L951A2 or L951A2/2


       2.2    L951A1 Antenna Unit




                                      J01
                                            1
                                            2

                                     S05
                                        1

                                            SW01




                      Figure 3. Circuit board L951A1 Antenna Unit.




7 May 2012 / Ver. PB7                                                                                      4


Installation Guide
LF Location Units                                                                                      TD 92082GB

                                            PRELIMINARY
              Connectors
              J01:                      Input signal from driver.
              Jumpers
              S05:                      If the tamper protection is to be disabled, a jumper should be placed on
                                        pins 1 and 2.
                                        If the tamper protection is active, the cover plate must be in place for the
                                        Locator to function.
              Switches
              SW01:                     Reed relay – for tamper protection



       2.3    L951A2 and L951A2/2 Antenna Units




                               J1
                           1        2




                      Figure 4. Circuit board L951A2 and L951A2/2 Antenna Units.



              Connectors
              J1:                       Input signal from driver.




7 May 2012 / Ver. PB7                                                                                              5


Installation Guide
LF Location Units                                                                                   TD 92082GB

                                        PRELIMINARY
       2.4    L951PA Power Amplifier


                                                                              S04
                                                                          1
                           J01                                                      S01       J05
                                 1                                        LED01           2
                                 2                                                   1 1

                                 1                                                        4




                                 4                                                        1

                           J03                                                                J06
                                                                     SW01




                      Figure 5. Circuit board L951PA Power Amplifier.

              Connectors
              J01:                   Input signal from driver (L951LP)
              J03:                   Supply voltage (polarity independent)
              J05:                   Antenna connection, to L951A1, L951A2, or L951A2/2
              J06:                   Pin 1 and 2: Monitor out
                                     Pin 3 and 4: Monitor in
                                     (For example Alarm Module T941AM8 or T941AM32 can be used for
                                     monitoring)
              LEDs
              LED01:                 Indicates with a steady light that antenna channel is functioning.
              Jumpers
              S01:                   Should not be jumpered.
              S04:                   A jumper should always be placed on pins 1 and 2.
              Switches
              SW01:                  Reed relay – for tamper protection




7 May 2012 / Ver. PB7                                                                                       6


Installation Guide
LF Location Units                                                                                TD 92082GB

                                      PRELIMINARY
3      Installation
              The L951LP, L951A1, and L951TP are housed in heavy-duty splash-proof plastic case,
              L951PA is housed in an aluminium case, and L951A2 and L951A2/2 are for flush mounting.
              The Power Amplifier (L951PA) and the flush mounted antennas (L951A2 and L951A2/2)
              have to be mounted indoors. Preferably, all units should be placed indoors, in a dry, room
              tempered environment. Maximum allowed temperature range is –20°C to +55°C.

              Up to two external LF antennas can be connected to an LF master locator. Max total wiring
              length is about 20 metres. Only twisted-pairs are to be used.


       3.1    Mounting

          3.1.1      L951LP Locator

              The Locator is delivered with three IP65 classified cable entries. At delivery none of the cable
              entries are mounted, nor are cable entry holes drilled, thus making it possible to find the
              most appropriate cable entry positions upon installation (figure 6 shows an example).
              Drill hole diameter:     13.0 mm
              Cable diameter:          3 – 5 mm




                                                        90 mm




                                 110 mm

                      Figure 6. Mounting dimensions, L951LP Locator.

              1       Open the plastic case by removing the four screws on the cover plate.
              2       Mount the case with the cable entries upwards:
                      Fasten the back plate of the case on desired surface with four screws.

              IMPORTANT: L951LP must be mounted to a vertical wall. Cable entries must be used. 
                         No cable entries must be directed downwards.

              NOTE: L951LP must be mounted with the ferrite antenna in vertical orientation to achieve
                    maximum coverage.

              NOTE: When the case of the L951LP is put together make sure that the reed relay and the
                    tamper protection magnet are placed opposite to each other.




7 May 2012 / Ver. PB7                                                                                        7


Installation Guide
LF Location Units                                                                              TD 92082GB

                                      PRELIMINARY
          3.1.2      L951A1 Antenna Unit

                            50 mm




                             Tamper
                             magnet

                                                    108 mm




                      Figure 7. Mounting dimensions, L951A1 Antenna Unit.

              1       Open the plastic case by removing the four screws on the cover plate.
              2       Fasten the back plate of the case on the desired surface with four screws, see 
                      figure 7 for mounting dimensions. Mount the case with the cable entry downwards.

              NOTE: L951A1 must be mounted with the ferrite antenna in vertical orientation to achieve
                    maximum coverage.

              NOTE: When the case of the L951A1 is put together, make sure that the reed relay and the
                    tamper protection magnet are placed opposite to each other.

          3.1.3      L951A2 Antenna Unit

                                            ø 6.5


                                                                                 Minimum hole diameter
                                                                                 for flush mounting



             115     90                                                                   70

                                                                    30
                                                                   Depth of
                                                                   circuit board
                                                                   with components
                                       90
                                      115

                      Figure 8. Mounting dimensions in mm.

              The Antenna Unit L951A2 is for flush mounting. See figure 8 for mounting dimensions.

              NOTE: L951A2 must be mounted with the ferrite antenna in vertical orientation to achieve
                    maximum coverage.




7 May 2012 / Ver. PB7                                                                                    8


Installation Guide
LF Location Units                                                                          TD 92082GB

                                     PRELIMINARY
          3.1.4      L951A2/2 Antenna Unit
                                      Minimum hole diameter
                                      for flush mounting



                                               70

                         30
                        Depth of
                        circuit board
                        with components

                      Figure 9. Mounting dimensions in mm.

              The Antenna Unit L951A2/2 is for flush mounting. See figure 9 for mounting dimensions.

              Fasten the holders to the circuit board.




                      Figure 10. Fastening of holders to L951A2/2 circuit board.

              Remove the protecting film from the double sided sticky tape and fasten the antenna on the
              desired surface.

              NOTE: L951A2/2 must be mounted with the ferrite antenna in vertical orientation to
                    achieve maximum coverage.




7 May 2012 / Ver. PB7                                                                                  9


Installation Guide
LF Location Units                                                                              TD 92082GB

                                      PRELIMINARY
          3.1.5      L951PA Power Amplifier




                                                                                   60 100




                                                  138
                                                  150


                      Figure 11. Mounting dimensions for L951PA in mm.

              1       Fasten the case on the desired surface with four screws, see figure 11 for mounting
                      dimensions.

              IMPORTANT: L951PA must be mounted to a vertical wall. No cable entries must be directed
                         downwards.

              NOTE: When the case of the L951PA are put together, make sure that the reed relay and the
                    tamper protection magnet are placed opposite to each other.

          3.1.6      L951TP Transient Protection Unit
                               110 mm




                                                        90 mm




                      Figure 12. Mounting dimensions for L951TP in mm.

              1       Open the plastic case by removing the four screws on the cover plate.
              2       Fasten the back plate of the case on the desired surface with four screws, see 
                      figure 12 for mounting dimensions. Mount the case with the cable entries
                      downwards.




7 May 2012 / Ver. PB7                                                                                    10


Installation Guide
LF Location Units                                                                                                    TD 92082GB

                                                         PRELIMINARY
       3.2    L951LP Locator

          3.2.1      Connecting Supply Voltage
                                                             1 2



                                                             SW04

                                                                               SW01    SW02
                                                               SW05            1       1
                                                                   1
                                                                   2

                                                                       LED01
                                                                               8       8


                                                                                       SW03
                         J05         P02
                               1                                                               J01
                                                                                           6
                               2 LED03       S04
                                         1         3
                       Channel 2
                                             S03
                                         1         3
                         J04                 S02
                                    P01            3
                               1
                               2 LED02                                                     1
                       Channel 1
                                                       L04




                                                                                                               J01
                                                                                                           6
                                                                                                     out
                                                                                       Monitor             5
                                                                                                      in   4
                                                                                                           3
                                                                                      16 - 40 V DC         2
                                                                                      15 - 28 V AC         1




                      Figure 13. Connector J01, L951LP

              Connect supply voltage to pin1 and 2 on J01 as shown in figure 13.

          3.2.2      Setting Location Code

              The location code consists of four hexadecimal digits (0000 – FFFE) and is set with switches
              SW01 and SW02. If a jumper is placed on S03 pins 2 and 3, channel 2 sends the master's
              code +1. Otherwise, both channels send the same code.

              SW01 and SW02 have eight switches each, divided into two groups 1–4 and 5–8. Each
              group corresponds to one hexadecimal digit.

              •   Switches 5 – 8 (SW01) = first hexadecimal digit (most significant)
              •   Switches 1 – 4 (SW01) = second hexadecimal digit
              •   Switches 5 – 8 (SW02) = third hexadecimal digit
              •   Switches 1 – 4 (SW02) = fourth hexadecimal digit (least significant)

              Switch 1 on SW02 is the least significant bit and switch 8 on SW01 is the most significant.




7 May 2012 / Ver. PB7                                                                                                       11


Installation Guide
LF Location Units                                                                                                                         TD 92082GB

                                                        PRELIMINARY
              See example of the switches in figure 14.

                        Switches 1-4                                                                                Switches 1-4
                        second hex digit                                                                            fourth hex digit
                        (Hex 3)                                                                                     (Hex D)
                                                             OFF               ON                    OFF   ON
                                               1                                 1               1                  1

                       2                                                                                                          4
                                               4                                                                    4

                                               5                                                                    5
                       1                                                           8             8
                                                                                                                                  3
                                               8                                                                    8
                                                               SW01                                   SW02
                        Switches 5-8                                                                                    Switches 5-8
                        first hex digit                                                                                 third hex digit
                        (Hex F)                                                                                         (Hex 5)

                      Figure 14. Example with SW01 and SW02 set to location code F35D. The digits gives
                               the order of the hex code, where 1 points out the first (most significant)
                               digit and 4 the last (least significant) digit.

              A total of 65 535 different location codes are available in the system. If needed, the
              Addressing chapter in the System Installation document shows how to set the four switches
              in each group for the hexadecimal digits 0-F.

              NOTE: Code FFFF is reserved, and should not be used as a location code.

          3.2.3      Enabling Immediate Alarm Transmission

                                                             1 2

                                                                                                             ON
                                                             SW04

                                                                               SW01    SW02
                                                               SW05            1       1
                                                                   1
                                                                   2
                                                                                                           1    2
                                                                       LED01
                                                                               8       8
                                                                                                           SW04
                                                                                       SW03
                         J05         P02
                               1                                                               J01
                                                                                           6
                               2 LED03       S04
                                         1         3
                       Channel 2
                                             S03

                         J04        P01
                                         1
                                             S02
                                                   3

                                                   3
                                                                                                                S04
                               1
                                                                                           1
                                                                                                           1               3
                            2 LED02
                       Channel 1
                                                       L04
                                                                                                                S03
                                                                                                           1               3
                                                                                                                S02
                                                                                                           1               3



                      Figure 15. Switch SW04, and jumpers S02 to S04 on L951LP.

              If immediate alarm transmission is required when the Alarm Transmitter receives the
              location code, pin 1 on switch SW04 must be in ON position.

          3.2.4      Enabling Internal Antenna

              1       To use internal antenna L04, place a jumper on pin 1 and 2 on S02. See figure 15
                      above.




7 May 2012 / Ver. PB7                                                                                                                            12


Installation Guide
LF Location Units                                                                                                                                                         TD 92082GB

                                                          PRELIMINARY
          3.2.5      Connecting Antenna Units

              L951LP can feed two Antenna Units.
                                                     Channel 1
                                                     CODE
                                                                                 Antenna Unit
                         L951LP                                                  L951A1, L951A2,
                         Locator
                                                                                 or L951A2/2
                                 Channel 2
                          CODE or CODE +1

                      Figure 16. Connection of Antenna Units.

              Connection of Channel 1




                               J1
                           1        2
                                                                                                                           1 2


                                                                    J05                                                    SW04
                                                                             1                                                               SW01   SW02
                                                                                                                                                                  SW05
                                                         J1                                                                  SW05
                                                                                                                                 1
                                                                                                                                             1      1             1
                                                     1        2              2                                                   2
                                                                                                                                                                  2
                                                                                                                                     LED01
                                                                  Channel 2                                                                  8      8


                                                                                                                                                    SW03
                                                                                       J05
                                                                    J04                      1
                                                                                                   P02
                                                                                                                                                        6
                                                                                                                                                            J01
                                                                                             2 LED03       S04
                                                                             1       Channel 2
                                                                                                       1         3
                                                                                                           S03
                                                                                                       1         3

                                                                             2         J04
                                                                                             1
                                                                                                  P01
                                                                                                           S02
                                                                                                                 3


                                                                  Channel 1               2 LED02                                                       1
                                                                                     Channel 1
                                                                                                                     L04
                                                                                                                                                                          S04
                                                                                                                                                                      1         3
                                                                                                                                                                          S03
                                                                   J01                                                                                                1         3
                                        J01
                                              1
                                              2                          1                                                                                                S02
                                        S05
                                                                         2                                                                                            1         3
                                          1

                                              SW01




                      Figure 17. Overview of Locator and Antenna Units.

              1       Connect J04 on L951LP to J01 on L951A1 or J1 on L951A2 or L951A2/2.
              2       On S02, place a jumper on pin 2 and 3.
              3       Set pin 1 on SW05 to ON.
              4       If channel 2 is not to be used, place a jumper on pin 1 and 2 on S04, else place a
                      jumper on pin 2 and 3.

              Connection of Channel 2

              Channel 2 can be set to have the same code as channel 1 for extending the coverage or
              code +1 for information on direction.

              1       For the same code, jumper pin 1 and 2 on S03 and for code +1 pin 2 and 3.
              2       On SW05, set pin 2 to ON.
              3       Connect J05 on L951LP to J01 on L951A1 or J1 on L951A2 or L951A2/2.




7 May 2012 / Ver. PB7                                                                                                                                                               13


Installation Guide
LF Location Units                                                                                                                          TD 92082GB

                                          PRELIMINARY
          3.2.6      Connecting Loops

              L951LP can feed two indoor or outdoor loops.
                                       Channel 1
                        L951LP                                                                             Outdoor
                        Locator                          L951TP
                                                                                                           Loops
                                       Channel 2

                      Figure 18. Connection of Transient Protection Unit and loops.

              L950TP (Transient Protection) is required when the loops are mounted outdoors. It is
              mounted between the L951LP Locator Unit and the loop antennas.

              Connection of Channel 1

              1       Connect J04 on L951LP to indoor loop or a contact unit in the L951TP for outdoor
                      loops, see 3.4 L951TP Transient Protection Unit on page 18 for more information.
                                                                                  1 2


                             J05                                                  SW04
                                   1                                                                SW01   SW02
                                                                                                                         SW05
                                                                                    SW05
                                                                                        1
                                                                                                    1      1             1
                                   2                                                    2
                                                                                                                         2
                                                                                            LED01
                           Channel 2                                                                8      8


                                                                                                           SW03
                                              J05
                             J04                    1
                                                          P02
                                                                                                               6
                                                                                                                   J01
                                                    2 LED03       S04
                                   1        Channel 2
                                                              1         3
                                                                  S03
                                                              1         3

                                   2          J04
                                                    1
                                                         P01
                                                                  S02
                                                                        3


                           Channel 1             2 LED02                                                       1
                                            Channel 1
                                                                            L04
                                                                                                                                 S04
                                                                                                                             1         3
                                                                                                                                 S03
                                                                                                                             1         3
                                                                                                                                 S02
                                                                                                                             1         3




                      Figure 19. Overview of Locator.

              2       On S02, place a jumper on pin 2 and 3.
              3       If channel 2 is not to be used, place a jumper on pin 1 and 2 on S04, else place a
                      jumper on pin 2 and 3.
              4       On SW05, set pin 1 to OFF.

              Connection of Channel 2

              Channel 2 can be set to have the same code as channel 1 for extending the coverage or
              code +1 for information on direction.

              1       For the same code, jumper pin 1 and 2 on S03, and for code +1 pin 2 and 3.
              2       Connect J05 to indoor loop or a contact unit in the L951TP for outdoor loops, see 3.4
                      L951TP Transient Protection Unit on page 18 for more information.
              3       On SW05, set pin 2 to OFF.




7 May 2012 / Ver. PB7                                                                                                                             14


Installation Guide
LF Location Units                                                                                                                                     TD 92082GB

                                           PRELIMINARY
          3.2.7      Connecting Power Amplifier

              1       Connect J04/J05 on L951LP to J01 on L951PA.

                              J01                                                                                       LED01
                                                                 J01                                                                        J05
                                       1                               1                                                                2
                                                                       2                                                                1
                                       2                                                                                                4
                                                                       1




                                                                       4                                                                1

                                                                 J03                                                                        J06
                                                                                                                  SW01




                                                                                 1 2


                             J05                                                 SW04
                                   1                                                               SW01   SW02
                                                                                                                            SW05
                                                                                   SW05
                                                                                       1
                                                                                                   1      1                     1
                                   2                                                   2
                                                                                                                                2
                                                                                           LED01
                          Channel 2                                                                8      8


                                                                                                          SW03
                                             J05
                             J04                   1
                                                         P02
                                                                                                              6
                                                                                                                  J01
                                                   2 LED03       S04
                                   1       Channel 2
                                                             1         3
                                                                 S03
                                                             1         3

                                   2         J04
                                                   1
                                                        P01
                                                                 S02
                                                                       3


                           Channel 1            2 LED02                                                       1
                                           Channel 1
                                                                           L04
                                                                                                                                            S04
                                                                                                                                    1             3
                                                                                                                                            S03
                                                                                                                                    1             3
                                                                                                                                            S02
                                                                                                                                    1             3




                      Figure 20. Overview of Locator and Power Amplifier.

              2       On S02, place a jumper on pin 2 and 3.
              3       On SW05, set pin 1 and 2 to ON.
              4       If channel 2 is not to be used, place a jumper on pin 1 and 2 on S04, else place a
                      jumper on pin 2 and 3. Channel 2 can be set to have the same code as channel 1 for
                      extending the coverage or code +1 for information on direction. Jumper pin 1 and 2
                      on S03 for the same code and pin 2 and 3 for code +1.




7 May 2012 / Ver. PB7                                                                                                                                        15


Installation Guide
LF Location Units                                                                                                                  TD 92082GB

                                      PRELIMINARY
          3.2.8      Adjusting the Range
                                                                                  1 2



                                                                                  SW04

                                                                                                    SW01   SW02
                                                                                    SW05            1      1
                                                                                        1
                                                                                        2

                                                                                            LED01
                                                                                                    8      8


                                                                                                           SW03
                                              J05           P02
                        -         +                 1
                                                    2             S04
                                                                                                               6
                                                                                                                   J01

                                                              1         3
                                            Channel 2
                                                                  S03
                                                              1         3
                                              J04                 S02
                                                            P01         3
                                                    1
                                                    2                                                          1
                                            Channel 1
                                                                            L04




                      Figure 21. P01 and P02 (P02 uppermost), L951LP.

              The range for channel 1 and channel 2 is set by adjusting potentiometers P01 and P02
              respectively. The maximum range for the Locator and Antenna Units are approximately 3
              meters.

              •   Adjust the output power until the required range is achieved.
              •   Test the obtained range with the a71 Alarm Transceiver.


       3.3    L951PA Power Amplifier

              NOTE: When the case of the L951PA is put together, make sure that the reed relay and the
                    tamper protection magnet are placed in opposite to each other.

          3.3.1      Connecting Supply Voltage


                                                                                                           LED01
                                      J01                                                                                    J05
                                             1                                                                           2
                                             2                                                                           1
                                             1                                                                           4




                                             4                                                                           1

                                      J03                                                                                    J06
                                                                                                        SW01




                                                                  J03
                            16 - 40 V DC                1                                   V in
                            15 - 28 V AC                2                                   GND in
                                                        3
                                                        4



                      Figure 22. Connector J03, L951PA

              Connect supply voltage to J03 as shown in figure 22.




7 May 2012 / Ver. PB7                                                                                                                     16


Installation Guide
LF Location Units                                                                                          TD 92082GB

                                         PRELIMINARY
          3.3.2      Connecting Antenna Unit

              L951PA can feed one Antenna Unit. Loops should not be connected to the Power Amplifier.
                                       Channel 1
                                       CODE or                                      L951A1,
                         L951LP                        L951PA                       L951A2, or
                                       Channel 2                                    L951A2/2
                                       CODE or
                                       CODE +1

                      Figure 23. Connection of Antenna Unit.

              The range for the Power Amplifier is adjusted in the Locator Unit, see 3.2.8 Adjusting the
              Range on page 16. The maximum range for the Power Amplifier is approximately 5 meters.

              1       Connect J05 on L951PA to J01 on L951A1 or J1 on L951A2 or L951A2/2.


                                                              LED01                            J05
                         J01                                              J05
                                   1                                  2                   1
                                   2                                  1                   2
                                   1                                  4




                                   4                                  1

                         J03                                              J06
                                                           SW01




                                                                      J01                     J01
                                                                                1                   1
                                                                                                    2
                                                  J1
                              J1              1        2                        2          S05
                          1        2                                                            1

                                                                                                    SW01




                      Figure 24. Overview of Power Amplifier and Antenna Units.




7 May 2012 / Ver. PB7                                                                                             17


Installation Guide
LF Location Units                                                                                          TD 92082GB

                                            PRELIMINARY
       3.4    L951TP Transient Protection Unit

              Connection of L951LP and Loops
                                      LINE                               EQUIP
                      Outdoors
                      Loop Antennas
                                                      Inside Top Cover

                                      b                                     b
                             L1       2                                     2        Channel 1
                                      a                                     a
                                                                                             L951LP
                                      b                                     b
                             L2       1                                     1        Channel 2
                                      a                                     a




                                  2 wires
                        L1                                                 4 wires
                                                                                               Channel 1
                                            2 wires
                        L2                                                                     Channel 2
                                                                           <_ 1 m
                                        <_ 1 m



                     Figure 25. Connection of channel 1 and 2 to L951TP.

              NOTE: The LINE connector should be connected to the Loop Antenna and the EQUIP
                    connector to the Locator.




7 May 2012 / Ver. PB7                                                                                             18


Installation Guide
LF Location Units                                                                              TD 92082GB

                                       PRELIMINARY
       3.5    Locator Monitoring
              The monitor output is a galvanically isolated relay contact (< 15 ohm) used for supervision
              of the locators. The relay contact becomes open circuit (> 1 M ohm) if a fault is detected. It
              can be a collapse of the magnetic field due to a discontinuity in the antenna loop, or the
              tamper protection has been triggered.

              The Antenna Units L951A1, L951A2, and L951A2/2 are monitored from the Locator or
              Power Amplifier by measuring if the antenna is open circuit or short circuit. Loops are
              monitored from the Locator by measuring if the loops are open circuit.

                        Monitor    6
                        out        5
                        Monitor    4
                        in         3
                        Supply     2
                        voltage    1



                        Monitor    6
                        out        5
                        Monitor    4
                        in         3
                        Supply     2
                        voltage    1



                        Monitor    6
                        out        5
                        Monitor    4                                             + Power
                        in         3                             Input on        – Supply
                        Supply     2                             Alarm
                        voltage    1                             Module


                     Figure 26. Connection of locator monitoring for L951LP units.

              1      Connect J01:3 on the Locator or J06:4 on the Power Amplifier to the positive pole on
                     the external Power Supply (+12 or +24 V DC). Connect J01:4 on a Locator or J06:3 on
                     a Power Amplifier, and the negative pole on the external Power Supply to the Alarm
                     Module (T941AM8 or T941AM32 – see Installation Guide for the Alarm Modules).
                     See figure 26 above for more information.
              2      The monitor outputs can be connected in series. Connect J01:6 on a Locator or J06:1
                     on a Power Amplifier to J01:3 on a Locator or J06:4 on a Power Amplifier. The last
                     unit in the series has to be strapped. Strap J01:5–6 on a Locator and 
                     J01:1–2 on a Power Amplifier.




7 May 2012 / Ver. PB7                                                                                     19


Installation Guide
LF Location Units                                                                              TD 92082GB

                                     PRELIMINARY
                     Depending on the type of Alarm Module and the supply voltage in the monitor loop,
                     the following number of units can be connected to the same input:
                                                        Supply              Voltage
                                                        12 V DC             24 V DC
                     T941AM32
                     Max no of units:                      2                    9
                     T941AM8
                     Max no of units:                      5                   12

              3      Reed relay (SW03 on Locator and SW01 on Power Amplifier) is connected in series
                     with the monitor output. The relay closes if a magnet is placed near to and parallel to
                     it. The magnet is placed so that the relay will open in case of any physical damage or
                     tampering.




4      Installation Check
              1      Switch the power on.
              2      Check, on the L951LP Locator, that LED01 flashes and LED02 lights steady. If channel
                     2 is connected LED03 should also have a steady light.
              3      If a L951PA Power Amplifier is connected, check that LED01 on it has a steady light.
              4      Use the a71 Alarm Transceiver to check that the required coverage is obtained. Check
                     that correct location code is transmitted/received.
              When all other units are installed, perform the system test described in the System
              Installation document.




7 May 2012 / Ver. PB7                                                                                    20



Document Created: 2012-05-08 11:28:44
Document Modified: 2012-05-08 11:28:44

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