Manual

FCC ID: QZC-REXUA

Users Manual

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FCCID_3950881

Model REXUA PCBA manual
General
The Model REXUA printed circuit board assembly (PCBA) contains a frequency hopping spread spectrum radio
operating in the 900 MHz ISM frequency band plus a DSSS radio operating in the 2.4 GHz ISM band. It also
contains circuitry for electricity metering. When the REXUA module is installed in a plastic housing it forms a
complete electricity meter. Installations of multiple REXUA meters comprise part of an Advanced Metering
Infrastructure (AMI) system that utilizes a proprietary network architecture and protocol devised by Elster
Solutions.

Device specifications
Table 1: 900 MHz Radio Specifications

 Classification                          Frequency Hopping Spread Spectrum
 Maximum Output Power                    250 mW
 Frequency Band                          902.4 - 927.6 MHz
 Number of Channels                      25
 Channel Spacing                         400 kHz
 Mode                                    EA LAN1                         EA LAN2
 Data Rate                               35.5 kbps                       142 kbps
 20 dB Occupied Bandwidth                250 KHz < BW < 400 KHz          250 KHz < BW < 400 KHz
 99% Occupied Bandwidth                  250 KHz < BW < 400 KHz          250 KHz < BW < 400 KHz
 Max channel dwell time                  < 0.4 seconds within a 10 second period

 Classification                          Frequency Hopping Spread Spectrum
 Maximum Output Power                    1W
 Frequency Band                          902.4 - 927.6 MHz
 Number of Channels                      64
 Channel Spacing                         400 KHz
 Mode                                    NGC
 Data Rate                               50 kbps, 150 kbps or 200 kbps
 20 dB Occupied Bandwidth                100 KHz < BW < 400 KHz for 50/150/200 kbps data rates
 99% Occupied Bandwidth                  100 KHz < BW < 400 KHz for 50/150/200 kbps data rates
 Max channel dwell time                  < 0.4 seconds within a 20 second period

 Classification                          Frequency Hopping Spread Spectrum
 Maximum Output Power                    500 mW
 Frequency Band                          902.3 - 927.8 MHz
 Number of Channels                      86
 Channel Spacing                         300 KHz
 Modulation                              FSK
 Data Rate                               9.6 kbps, 19.2 kbps, 38.4 kbps
 20 dB Occupied Bandwidth                BW < 100 KHz for 9.6/19.2/38.4 kbps data rates
 99% Occupied Bandwidth                  BW < 100 KHz for 9.6/19.2/38.4 kbps data rates
 Max channel dwell time                  < 0.4 seconds within a 20 second period

 Classification                          Frequency Hopping Spread Spectrum
 Maximum Output Power                    500 mW
 Frequency Band                          902.3 - 927.8 MHz
 Number of Channels                      86
 Channel Spacing                         300 KHz
 Modulation                              GFSK


    Data Rate                             115.2 kbps
    20 dB Occupied Bandwidth              250 KHz < BW < 400 KHz for 115.2 kbps data rates
    99% Occupied Bandwidth                250 KHz < BW < 400 KHz for 115.2 kbps data rates
    Max channel dwell time                < 0.4 seconds within a 10 second period

    Classification                        Frequency Hopping Spread Spectrum
    Maximum Output Power                  500 mW
    Frequency Band                        904.0 - 927.8 MHz
    Number of Channels                    239
    Channel Spacing                       100 KHz
    Modulation                            FSK
    Data Rate                             9.6 kbps, 19.2 kbps, 38.4 kbps
    20 dB Occupied Bandwidth              BW < 100 KHz for 9.6/19.2/38.4 kbps data rates
    99% Occupied Bandwidth                BW < 100 KHz for 9.6/19.2/38.4 kbps data rates
    Max channel dwell time                < 0.4 seconds within a 20 second period



Table 2: 2.4 GHz Radio Specifications

    Classification                        Digital Modulation
    Maximum Output Power                  100 mW
    Frequency Band                        2405 - 2470 MHz
    Number of Channels                    14
    Channel Spacing                       5 MHz
    Mode                                  ZigBee
    Data Rate                             250 kbps
    6 dB Occupied Bandwidth               1.613 MHz
    99% Occupied Bandwidth                2.44 MHz




FCC and ISED Canada Compliance
Warning (Part 15.21)
The A3 ALPHA meter equipped with the MNIC option complies with Part 15 of the FCC Rules and with
Innovation, Science, and Economic Development (ISED) Canada RSS-210. Warning: Changes or modifications
not expressly approved by Elster could void the user's authority to operate the equipment.

FCC & ISED Information
     FCC ID: QZC-MNIC
     IC: 4557A-MNIC

User Information (Part 15.105)
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
     reorient or relocate the receiving antenna


   increase the separation between the equipment and the receiver
   connect the equipment into an outlet on a circuit different from that to which the receiver is connected
   consult the dealer or an experienced radio/TV technician for help


If you experience trouble with this equipment, please use the Return Material Request (RMR) feature available
at the Online Customer Services at www.elsterelectricity.com. Do not attempt to repair this equipment yourself
unless you are replacing the entire module.

Compliance Statement (Part 15.19)
This device complies with Part 15 of the FCC Rules and Class B digital apparatus requirements for ICES-003.
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 of the device.

ÉNONCÉ DE CONFORMITÉ
Cet appareil est conforme à la Partie 15 des règles de la FCC et aux CNR d'Industrie Canada applicables aux
appareils radio exempts de licence. L'utilisation de cet appareil est soumise aux deux conditions suivantes : (1)
Cet appareil ne doit pas provoquer d'interférences nocives et (2) cet appareil doit accepter toutes les
interférences reçues notamment celles pouvant provoquer un fonctionnement intempestif de l'appareil.

Antenna Compliance
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and
maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio
interference to other users, the antenna type and its gain should be so chosen that the Equivalent Isotropic
Radiated Power (EIRP) is not more than that necessary for successful communication.

Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une
antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le
but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le
type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas
l'intensité nécessaire à l'établissement d'une communication satisfaisante.

MNIC: This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in
this document with the maximum permissible gain indicated. Antenna types not included in this list, having a
gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

MNIC: Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types
d’antenne énumérés dans cette document et ayant un gain admissible maximal et l’impédance requise pour
chaque type d’antenne. Les types d’antenne non inclus dans cette liste, ou dont le gain est supérieur au gain
maximal indiqué, sont strictement interdits pour l’explotation de l’émetteur.

This device complies with Industry Canada’s licence-exempt RSSs. 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 present appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de
licence. L’explotation 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.


RF Radiation Safety Guidelines
The device should be installed in a location where there will be a separation greater than 20 cm (8 inches)
from locations occupied by humans.

DIRECTIVES DE SÉCURITÉ DE RADIOFRÉQUENCE
Cet équipement est conforme aux limites d'exposition aux radiations définies par la Commission Fédéral des
Communications (FCC) pour un environnement non contrôlé. Cet équipement doit être installé et utilisé à une
distance d'au moins 20 cm de séparation de toutes personnes.

Collocation Statement
Collocation of simultaneously-transmitting (co-transmitting) antennas located within 20 cm of each other within
a final product is not allowed, except as documented in the FCC application. Users and installers must be
provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure
compliance.



Document Created: 2018-07-31 15:35:31
Document Modified: 2018-07-31 15:35:31

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