Users manual Part 2

FCC ID: PKTNODEBDZ

Users Manual

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FCCID_415595

Node B Rack Mount Installation Guide


Step 4 Mounting Installations

This section explains how to mount the Node B Rack Mount shelves into racks.


Mounting Rack
The figure below illustrates the 19inch mounting rack plus support shelves, some racks or
cabinets can use support rails. This construction can be within an enclosure or cabinet.
The support shelves or rails are specific to the rack, enclosure or cabinet being installed,
thus their specification shall be part of same selection.




                   Figure 6-6 : Mounting Rack + Support Shelves/Rails




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Precautions
The following precautions and checks are applicable to all mounting types:-
    Connectors have been manufactured to fit their specific cables and funcition. Do not
    modify or force connectors.
    Check Site Plans for engineering approval.
    Ensure that good ground resistance is available at the installation site ( 10 )
    Where installed in an outdoor enclosure attention should be paid to cooling and
    water+dust sealing prevention refer to Table 5-1.

Rack Mounting – Installing Digital Shelf
Ensure the shelf or shelf supports are secure, then insert the digital shelf into the rack and
secure from the front.

Notes:
   If there is no rear access it may be required to make the ground connection prior to
   inserting the shelf into the rack.
   Where additional securing is required at the rear this shall require custom brackets
   depending on the rack specifications/construction.

                             Figure 6-7: Installing Digital Shelf




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Rack Mounting – Installing Radio Shelf
Ensure the shelf or shelf supports are secure, then insert the radio shelf into the rack and
secure from the front.

Notes:
   If there is no rear access it may be required to make the ground connection prior to
   inserting the shelf into the rack.
   Where additional securing is required at the rear this shall require custom brackets
   depending on the rack specifications/construction.

                             Figure 6-8 : Installing Radio Shelf




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Step 5 Ground Installation

The main Node B ground cable shall use a minimum #2 AWG (Diameter 6.6mm or CSA
33mm2) stranded wire or equivalent earth braid.
The ground cable is terminated on the rear of both shelves of the Node B Rack Mount using
terminal that shall fit the M8 (7/16”) stud on the rear of each shelf.
The grounding wire is terminated onto the site grounding ring.
It should be noted that each site shall be designed for specific site, country or local
installation requirements.
CAUTION: Ensure that the earth braid or cable is bonded to a common earth with
equipment that is co-located with the Node B.


                  Figure 6-9 : Earth Connection on the rear of each shelf




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Step 6 DC Power Connection-Digital


The power supply input must be a nominal -48Vdc input, refer to Table 5-1.
The connection of the mains to DC supply is via the cable provided as part of the digital shelf
package.
The provided cable assembly has 3 metres of cable with a connector to provide connection
to the digital shelf. The tail ends of the cable are stripped and must be terminated to a
permanent connection junction/terminal block. The length of the cable may be shortened to
facilitate.
Notes:
    Only the cable provided with the digital shelf should be used.
    The connector is keyed to prevent wrong insertion.

                   Figure 6-10 : Power Connection to the digital shelf




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Step 7 DC Power Connection-Radio

The power supply input must be a nominal -48Vdc input, refer to Table 5-1
The connection of the mains to DC supply is via the cable provided as part of the radio shelf
package.
The provided cable assembly has 3 metres of cable with a connector to provide connection
to the radio shelf. The tail ends of the cable are stripped and must be terminated to a
permanent connection junction/terminal block. The length of the cable may be shortened to
facilitate.
Note: Only the cable provided with the radio shelf should be used.

                    Figure 6-11 : Power Connection to the radio shelf




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Step 8 Inter-Shelf Connections

The digital shelf is supplied with the shelf interface kit that contains the following items
   • I/Q interface cable – 21wayD-hybrid
   • Control interface cabe – 25wayD
   • PSU control cable – 3way

The figure below illustrates the connection of each of these cables between the digital and
radio shelf.
                      Figure 6-12: Interface Cable Connection




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Step 9 Backhaul Connections (Iub) to INC

The Digital Shelf faceplate contains the backhaul connections. The installation can be
selected from the following interfaces
             100BaseT
             E3/T3
             E1/T1
The connections are labeled and shown in the figure below.

Note: If the Node B is in not in the same site location as the serving INC, there must be no
greater than a 5 millisecond delay on the backhaul connection. This can be provided by
microwave or land based facilities with a reliability rate of 99.9995%.

                                  Figure 6-13 : Backhaul Connections




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100BaseT Connection - (Eth)
Terminate the Ethernet cables with RJ45 connectors and the cables may be secured to the
brackets on the face of the Digital Shelf (Figure 6-13). Test the continuity for the Ethernet cables
with test equipment consisting of a main and a remote unit.

The termination for these interfaces is specified within the datasheets for the interfaces. The
specification for both cables should be CAT5 - 4 pair, screened cable, recommended Alcatel
LANmark-5 F2TP or equivalent.



Notes: Points to remember when installing Category 5 cables for the Node B 100Base T
Ethernet Backhaul.
1.   Do not kink the cable as the pairs are twisted to support 100Mhz operation and splitting the
     pairs could reduce the performance of the cable.
2. When installing the RJ45 plugs onto the cable ensure pairs are untwisted to the minimum
   and that the cable sheath is clamped within the connector. Again this is to ensure the
   performance of the cable is not reduced.

The pin-outs for the external Ethernet interfaces are given in the following table & figure.
Source: http://www.dcbnet.com/notes/9611t1.html


                           Table 6-5 : Ethernet Pin-outs using RJ45
                                  1    RX +      White w/Green
                                  2    RX -      Green
                                  3    TX +      White w/Orange
                                  4              Blue
                                  5              White w/Blue
                                  6    TX -      Orange
                                  7              White w/Brown
                                  8              Brown



                         Figure 6-14 : Ethernet Pin-outs using RJ45




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E3/T3 Connections – (Tx + Rx)
Terminate the E3/T3 cables with BNC connectors and the cables may be secured to the brackets
on the face of the Digital Shelf (Figure 6-13). Test the continuity for the E3/T3 cables with test
equipment consisting of a main and a remote unit.

The termination for these interfaces is specified within the datasheets for the interfaces. The
specification for both cables should be 75 .

E1/T1 Connections – (1 to 4)
Terminate the E1/T1 cables with RJ45 connectors and the cables may be secured to the brackets
on the face of the Digital Shelf (Figure 6-13).

Test the continuity for the E1/T1 cables with test equipment consisting of a main and a remote
unit. The pinouts for this interface are shown in the table below.

The termination for these interfaces is specified within the datasheets for the interfaces. The
specification for both cables should be CAT5 - 4 pair, screened cable, recommended Alcatel
LANmark-5 F2TP or equivalent.
                                   Table 6-6 : T1/E1 Pin-outs
                T1 Pinouts                   Cable           E1 Pinouts
                1    Rx (ring)          White w/Green        Rx (ring)             1
                2    Rx (tip)           Green                Rx (tip)              2
                3    Not used           White w/Orange       Not used              3
                4    Tx (ring)          Blue                 Tx (ring)             4
                5    Tx (tip)           White w/Blue         Tx (tip)              5
                6    Not used           Orange               Not used              6
                7    Not used           White w/Brown        Not used              7
                8    Not used           Brown                Not used              8




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Step 10 Antenna Cabling - Installation

Antennas and coaxial cable should be available at the site, and are part of the construction
checklist and general assumptions.

Two antennae per Node B Radio Shelf are optimum, allowing receiver diversity and transmit
diversity (note: if option fitted), therefore two coaxial cables per Node B are needed. Diversity can
be via polarization, in which case two feeder runs to the same antenna are needed, feeding
oppositely polarised sectors in the same physical enclosure.

Cables should be properly marked to indicate what antenna the coaxial cables are to be
connected to the Node B serving the sector or area.

In the case where only one feeder / antenna is being used, this must be connected to the top
connector when viewed from the front of the Node B.

The following installation describes the position of the antenna ports and designations.

                        Figure 6-15 : Antenna Connections & Routing




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Step 11 Alarm Connections

If local alarms are to be utilised two Dtype connectors are been provided on the Node B
digital shelf. The specifications for those interface requirements are below:-

The maximum input voltage is restricted to 39V for a 500A 8/20 uS pulse, with a minimum
working voltage of 18V. All six input circuits are the same.

                          Figure 6-16 : Alarm Outputs & Inputs




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Alarm Inputs
The 6 external alarm inputs are connected via the 15wayD female type located on the right
hand side of the digital shelf.

The external alarm inputs are opto-isolated current loops. The voltage and currents shall be
supplied by the external source.

The pin-out for the alarm inputs are shown in the table below.

                                 Table 6-7 : Alarm Inputs
                                      Pin    Signal
                                      #
                                      1      ALARM_IN_A0
                                      2      ALARM_IN_B0
                                      3      ALARM_IN_A1
                                      4      ALARM_IN_B1
                                      5      ALARM_IN_A2
                                      6      ALARM_IN_B2
                                      7      ALARM_IN_A3
                                      8      ALARM_IN_B3
                                      9      Earth
                                      10     ALARM_IN_A4
                                      11     ALARM_IN_B4
                                      12     ALARM_IN_A5
                                      13     ALARM_IN_B5
                                      14     Earth
                                      15     Earth


Alarm Outputs
The external alarm outputs are connected via the 9wayD female located on the right hand
side of the digital shelf.
The external alarm outputs shall be isolated normally-open relay contacts capable of
switching 100mA DC.
The pin-out for the alarm inputs are shown in the table below.

                                 Table 6-8 : Alarm Outputs
                                     Pin    Signal
                                     1      ALARM_OUT0+
                                     2      ALARM_OUT0-
                                     3      Earth
                                     4      ALARM_OUT0+
                                     5      ALARM_OUT0-
                                     6      Earth
                                     7      Earth
                                     8      Earth
                                     9      Earth




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Step 12 GPS Installation & Operation

The Node B has an external/remote GPS antenna and receiver. The connection for the
antenna (N-Type) is located on the Digital Shelf, Figure 6-17.
The GPS timing signal is used by the Node B for the TDD frame timing, so that all Node B's
in a network are synchronized. The GPS signal is also used by the master oscillator for a
frequency reference. The Node B can operate for two hours after a loss of GPS timing but a
gradual drift of the frame timing will result in system interference and a loss of Node B
selection / reselection capability.
A suitable Node B GPS antenna is shipped with every Node B. This antenna should be used
with a maximum of 15 metres cable of RG6 type cable plus male N-type connectors at each
end. For longer runs, the cable losses will affect signal strength and could impede GPS
signal performance.
For proper operation of the GPS receiver, the Node B GPS Antenna must have a clear
southern view of the sky. A site survey should be done before Node B installation to verify
that the Node B installation location is suitable for GPS reception.
A simple survey method is to take a handheld GPS receiver to the site and verify that GPS
lock is obtained in the location of the Node B installation. The handheld GPS should be able
to obtain a "locked" condition within 2 minutes of power-on, and should be able to see a
minimum of 4 satellites at all times.
The GPS receiver, integral to the Node B Digital shelf, is automatically enabled when the
Node B is powered and there are no adjustments or settings to be made by the user.
Note: When the Node B installation is on or near a tower or building wall, the GPS survey
should replicate the configuration.
When tower space is at a premium, or when long cable runs are involved, it may be
preferable to use a single GPS antenna to feed multiple Node Bs. It is possible to use one
GPS antenna with up to three units, providing that a passive splitter is used.
Caution: It is essential that in a ‘single GPS antenna supporting multi-Node B’ installation
only one of the Node B’s is designated and configured to supply the GPS antenna with +5V
via the GPS antenna cable as in a standard single installation.
The remaining subordinate Node Bs are provided their GPS signal through a DC block
device. Failure to do this may result in damage to the Node B. It should also be noted that in
the event of power failure to the DC supplying Node B, GPS reception to all Node B’s will be
affected.
                              Figure 6-17 : GPS Antenna
GPS Antenna
Field of Vision No
Obstructions




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                      Figure 6-18 : GPS Antenna Connection




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       7. APPENDIX

       Appendix A - Installation Check Card



Step                   Action                Complete   Comment                   Page

 1     Perform pre-installation site check

 2     Parts shipped/tools required

 3     Site Preparation

 4     Mounting rack/cabinet installation

 5     Grounding installation

 6     DC Power Connection-Digital Shelf

 7     DC Power Connection-Radio Shelf

 8     Inter-shelf interface connections

 9     Backhaul Connections to INC

10     Antennas Cabling - Installation

11     Alarm Connections

12     GPS Installation & Operation




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Appendix B - Glossary

                                          GLOSSARY
                ADC        Analog to Digital Converter
                ARP        Address Resolution Protocol
                BTS        Base Transceiver Station
                DAC        Digital to Analog Converter
                Downlink   From Network to the User Equipment
                DSCH       Downlink Shared Channel
                ESD        Electro Static Discharge
                EM         Element Manager
                EIA        Engineering Industry Association
                Ethernet   10BaseT or 100baseT
                ETSI       European Telecommunications Standardization Institute
                FCC        Federal Communication Commission
                FPGA       Field Programmable Gate Array
                GPS        Global Positioning System
                HTTP       Hyper-Text Transfer Protocol
                INC        Integrated Network Controller
                IP         Internet Protocol
                ISP        Internet Service Provider
                ITFS       Instructional Television Fi xed Service
                IUB        Interface Between the INC & NodeB
                LMT        Local Maintenance Terminal
                LNA        Low Noise Amplifier
                MCP        Multimedia Communications Port
                MAC        Media Access Control
                Mcps       Mega Chips per Second
                MMDS       Multichannel Multipoint Distribution Service
                MSPS       Mega Samples Per Second
                MTU        Maximum Transmission Unit
                Node B     A UMTS Radio Base Station
                PDU        Protocol Data Unit
                PLL        Phase Locked Loop
                QPSK       Quadrature Phase Shift Keying
                RAM        Random Access Memory
                RLC        Radio Link Control
                SRAM       Static RAM
                T1/E1      1536kbps/ 2048Kbps pipe
                T3/E3      45Mbps or 34Mbps
                UE         User Equipment
                UMTS       Universal Mobile Telecommunications System


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                                        GLOSSARY
                Uplink   From User Equipment to the Network
                USB      Universal Serial Bus
                USCH     Uplink Shared Channel
                UPS      Uninterruptible Power Supply Unit
                UTRAN    UMTS Terrestrial Radio Access Network
                VSWR     Voltage Standing wave ratio
                VCXO     Voltage Controlled Crystal Oscillator




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                           END OF DOCUMENT




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Document Created: 2019-11-10 03:07:22
Document Modified: 2019-11-10 03:07:22

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