Elster Solutions REXUANZ User Manual

Certification Exhibit

FCC ID: QZC-REXUANZ

IC: 4557A-REXUANZ

FCC Rule Part: 15.247

IC Radio Standards Specification: RSS-247

ACS Project Number: 15-0286

Manufacturer: Elster Solutions, LLC

Model: REXUA-NZ

5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: [phone]

Model REXUA-NZ PCBA manual

General

The Model REXUA-NZ printed circuit board assembly (PCBA) contains a frequency hopping spread spectrum
radio operating in the 902.4-927.6 MHz ISM frequency band. It also contains circuitry for electricity metering.
When the REXUA-NZ module is installed in a plastic housing it forms a complete electricity meter. Installations
of multiple REXUA-NZ 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
Data Rate 35.5 kbps
20 dB Occupied Bandwidth 250 KHz < BW < 400 KHz
99% Occupied Bandwidth 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 1 W
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

EA LAN2
142 kbps
250 KHz < BW < 400 KHz
250 KHz < BW < 400 KHz

FCC and Industry Canada Compliance

The radio module is manufactured directly onto the meter main circuit board, and the module is inserted into
the electronic housing of the meter at manufacture. It has no user-serviceable parts.

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