User manual
905U-G Wireless Gateway User Manual
Page 131 ©September 2004
Chapter 5 SPECIFICATIONS
General
EMC approval FCC Part 15A
Radio standards FCC Part 15.247 902 – 928 MHz, 1W
Housing 130 x 185 x 60mm
DIN rail mount
Powder-coated, extruded aluminum
Terminal blocks Removable Suitable for 12 gauge / 2.5 mm
2
conductors
LED indication Power supply/OK, Active
operation, digital I/O,
Radio RX and TX, Serial
RX and TX
Operating Temperature 905U-G-MD1
905U-G-PR1
905U-G-ET1
905U-G-DE1
905U-G-M+1
-40 to 140 degF, -40 to 60 degC
30 to 140 degF, 0 to 60 degC
30 to 140 degF, 0 to 60 degC
30 to 140 degF, 0 to 60 degC
30 to 140 degF, 0 to 60 degC
Humidity 0 – 99% RH
non-condensing
Power Supply
Battery supply 11.3 - 15.0 VDC
AC supply 12 - 24 VAC, 50/60 Hz
DC supply 9 - 30 VDC
Battery Charging circuit Included, suitable for
12Vsealed lead acid
batteries
Regulated to max 1.5 amp charging
current
Normal Current Drain at
12VDC
905U-G-MD1
905U-G-PR1
905U-G-ET1
150 mA
270 mA
270 mA
add 5mA per active I/O
Normal Current Drain at
24VDC
905U-G-MD1
905U-G-PR1
905U-G-ET1
90 mA
170 mA
170 mA
add 3mA per active I/O
Radio transmitter inrush,
additional to above
350mA @ 12VDC
250mA @ 24VDC
Power fail status Monitored Can be transmitted to remote
modules
Battery voltage Monitored Analog value can be transmitted
Low voltage status can be transmitted
Radio Transceiver (905U)
Spread spectrum Frequency hopping 16 hop sequences x 100 channels