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 Maximum Output Power Frequency Band Number of Channels Channel Spacing Mode Data Rate 20 dB Occupied Bandwidth 99% Occupied Bandwidth Max channel dwell time Classification Maximum Output Power Frequency Band Number of Channels Channel Spacing Mode Data Rate 20 dB Occupied Bandwidth 99% Occupied Bandwidth Max channel dwell time Classification Maximum Output Power Frequency Band Number of Channels Channel Spacing Modulation Data Rate 20 dB Occupied Bandwidth 99% Occupied Bandwidth Max channel dwell time Classification Maximum Output Power Frequency Band Number of Channels Channel Spacing Modulation EA LAN2 142 kbps 250 KHz < BW < 400 KHz 250 KHz < BW < 400 KHz Frequency Hopping Spread Spectrum 250 mW 902.4 - 927.6 MHz 25 400 kHz EA LAN1 35.5 kbps 250 KHz < BW < 400 KHz 250 KHz < BW < 400 KHz
< 0.4 seconds within a 10 second period Frequency Hopping Spread Spectrum 1 W 902.4 - 927.6 MHz 64 400 KHz NGC 50 kbps, 150 kbps or 200 kbps 100 KHz < BW < 400 KHz for 50/150/200 kbps data rates 100 KHz < BW < 400 KHz for 50/150/200 kbps data rates
< 0.4 seconds within a 20 second period Frequency Hopping Spread Spectrum 500 mW 902.3 - 927.8 MHz 86 300 KHz FSK 9.6 kbps, 19.2 kbps, 38.4 kbps BW < 100 KHz for 9.6/19.2/38.4 kbps data rates BW < 100 KHz for 9.6/19.2/38.4 kbps data rates
< 0.4 seconds within a 20 second period Frequency Hopping Spread Spectrum 500 mW 902.3 - 927.8 MHz 86 300 KHz GFSK Data Rate 20 dB Occupied Bandwidth 99% Occupied Bandwidth Max channel dwell time Classification Maximum Output Power Frequency Band Number of Channels Channel Spacing Modulation Data Rate 20 dB Occupied Bandwidth 99% Occupied Bandwidth Max channel dwell time 115.2 kbps 250 KHz < BW < 400 KHz for 115.2 kbps data rates 250 KHz < BW < 400 KHz for 115.2 kbps data rates
< 0.4 seconds within a 10 second period Frequency Hopping Spread Spectrum 500 mW 904.0 - 927.8 MHz 239 100 KHz FSK 9.6 kbps, 19.2 kbps, 38.4 kbps BW < 100 KHz for 9.6/19.2/38.4 kbps data rates BW < 100 KHz for 9.6/19.2/38.4 kbps data rates
< 0.4 seconds within a 20 second period Table 2: 2.4 GHz Radio Specifications Classification Maximum Output Power Frequency Band Number of Channels Channel Spacing Mode Data Rate 6 dB Occupied Bandwidth 99% Occupied Bandwidth Digital Modulation 100 mW 2405 - 2470 MHz 14 5 MHz ZigBee 250 kbps 1.613 MHz 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. NONC DE CONFORMIT Cet appareil est conforme la Partie 15 des rgles 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'interfrences nocives et (2) cet appareil doit accepter toutes les interfrences reues 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. Conformment la rglementation d'Industrie Canada, le prsent metteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou infrieur) approuv pour l'metteur par Industrie Canada. Dans le but de rduire les risques de brouillage radiolectrique l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonne quivalente (p.i.r.e.) ne dpasse pas l'intensit ncessaire l'tablissement 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 prsent metteur radio a t approuv par Industrie Canada pour fonctionner avec les types dantenne numrs dans cette document et ayant un gain admissible maximal et limpdance requise pour chaque type dantenne. Les types dantenne non inclus dans cette liste, ou dont le gain est suprieur au gain maximal indiqu, sont strictement interdits pour lexplotation de lmetteur. This device complies with Industry Canadas 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 dIndustrie Canada applicables aux appareils radio exempts de licence. Lexplotation est autorise aux deux conditions suivantes: (1) lappareil ne doit pas produire de brouillage, et (2) lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den 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 SCURIT DE RADIOFRQUENCE Cet quipement est conforme aux limites d'exposition aux radiations dfinies par la Commission Fdral des Communications (FCC) pour un environnement non contrl. Cet quipement doit tre install et utilis une distance d'au moins 20 cm de sparation 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.