User's Manual

455U Radio Modem Module User Manual
Page 44 © November 2004
Expected line-of-sight range 30 km @ 19200 baud
(25Khz)
35 km @ 9600 baud
(12.5Khz)
60 km @ 4800 baud
Range may be extended by up to
6 intermediate modules as
repeaters, in Acknowledged
mode
Antenna Connector Female SMA coaxial
Serial Ports
RS232 Port DB9 female DCE RTS/CTS/DTR/DCD hardware
signals provided
RS485 Port 2 pin terminal block Maximum distance 1.2 km
Data rate (bit/sec) -
configurable
600, 1200, 2400, 4800,
9600, 14400, 19200,
28800, 31250, 38400,
57600, 76800, 93750,
115200, 187500
Byte format 7 or 8 data bits Stop/start/parity bits configurable
System Parameters
Operating modes Unacknowledged mode
Acknowledged mode
Broadcast or Addressed
Addressed communications with
retry – acknowledge protocol
System address Configurable 16 bit
User Configuration Hayes commands from local or
remote host device.
Configuration Software Utility
Factory Default via switch
Diagnostics
OK and PWR leds
Low signal receive led
CTS/RTS indication
RSSI measurement in
dBm
BER test