User manual
Chapter Five Specifications
man_905-105_2.9 Page 49
Chapter Five 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 aluminium
Terminal blocks Removable Suitable for 2.5 mm
2
conductors
LED indication Power supply,
OK operation, digital I/O,
RX and TX
Operating Temperature -40 to 55 degrees C
Humidity 0 – 99% RH
non-condensing
Power Supply
Battery supply 11.3 - 15.0 VDC
AC supply 12 - 24 VAC, 50/60 Hz Overvoltage protected
DC supply 15 - 30 VDC Overvoltage and reverse voltage
protected
Battery Charging circuit Included for 1.2-12 ahr sealed lead acid batt
Solar regulator Included Direct connection of solar panel (up
to 30W) and solar battery (100 Ahr)
Current Drain at 12VDC 85 mA quiescent for ‘U’
45 mA quiescent for ‘S’
+ 10 mA/active digital input
+ 25 mA/active digital output
+ 2 x analog I/O loop (mA)
Radio transmitter inrush at
12VDC
350mA
Analog loop supply Included, except -4 24V DC 150 mA
Mains fail status Monitored Can be transmitted to remote
modules
Battery voltage Monitored As above
Radio Transceiver (905U)
Spread spectrum Frequency hopping 16 hop sequences x 100 channels
Frequency USA/Canada
Australia
New Zealand
902 – 928 MHz
915 – 928 MHz
922 – 928 MHz
Transmission Power 1W
Signal detect / RSSI -120 to –50 dBm