User's Guide

Elster A3/Alpha Plus Node Hardware
EkaNet Hardware Manual 3 - 5 10156-04
Eka Proprietary and Confidential
Range (w/ omni antenna) > 400 m (1200 ft.)
25 - 50 m (75 - 150 ft.)
Outdoor > 1,000 m (3,200 ft.) Frequency hopping
spread spectrum
Indoor 75 - 150 m (225 - 490 ft.)
Mode Frequency hopping
spread spectrum
Interface Specifications
ANSI C12.18/C12.19 for the A3
Meter manufacturer proprietary protocol for the Alpha Plus
Mechanical
Weight: 31 g (1.1 oz.)
Dimensions: 76 x 76 mm.
(3
x 3 in.)
Network Specifications
No hard limitation on number of meters per Gateway (actual number of meters per
Gateway depends on network performance requirements)
Full peer-to-peer communication
Fully self-configuring
Automatic routing
No network address management required
Automatic network acquisition
Automatic time synchronization of all nodes in the network
128 bit authentication/encryption
Operating Conditions
Environmental -40°C to +70°C
5 - 95% non-condensing humidity
Power Supply Internal to meter
Power Consumption 0.6 Watt typical
Radio Specifications