User's Manual

Chapter Five Specifications

Man_905UD_2.0.doc Page 37

Chapter Five SPECIFICATIONS

General

Radio specification FCC part 15.247 902-928 MHz

Housing 130 x 185 x 60mm

DIN rail mount

Powder-coated, extruded

aluminium

Terminal blocks Removable Suitable for 2.5sqmm conductors

LED indication OK operation, Serial RX

and TX, Radio RX and

TX, DCD active

Operating Temperature -20 to 60 degrees C

Power Supply

Nominal supply 12VDC or 24VDC

12V supply 11.3 - 15 VDC Overvoltage and reverse voltage

protected

24V supply 18 – 28 VDC Overvoltage and reverse voltage

protected

Current Drain @ 12VDC 150 mA quiescent

30mA (low power mode)

During transmission 500mA

Current Drain @ 24VDC 80 mA quiescent

20mA (low power mode)

During transmission 300mA

Radio Transceiver

Frequency Hopping Spread

spectrum

Direct frequency modulation

Transmit power 1W 902-928 MHz

Frequency Stability +/- 10. 0 kHz

Signal detect / RSSI -120 to -80 dBm

Aerial Connector Reverse SMA coaxial

Serial Ports

RS232 Port DB9 male DCE RTS/CTS/DCD hardware signals

provided

RS485 Port 2 pin terminal block Typical distance 1 - 2 km

Data rate (bit/sec) -

configurable

1200, 2400, 4800, 9600,

19200, 38400, 57600,

115200