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