Synthesised Radio Modem
X8200
X8200HP
2
2.1
1
Connections
9 Way D Type Connector RS232/RS485
6
+VE POWER
CONFIGURATION MODE
RS232 RD RECEIVE DATA
-VE RS485
RS232 TD TRANSMIT DATA
CTS
DTR (STANDBY)
+VE RS485
0V
INPUT
INPUT
INPUT
INPUT/OUTPUT
OUTPUT
OUTPUT
INPUT
INPUT/OUTPUT
INPUT
2
7
3
8
4
9
5
Pin
1
Connection
+VE
2
3
4
5
6
7
8
9
RD
TD
DTR
GND
CON
–VE
CTS
+VE
Description
Regulated power supply. It is not advisable to use some types of switched mode power
supply either to drive the X8200 radio modem or in close proximity to it. This type of power
supply can produce high energy radio frequencies over a broad spectrum thereby causing
interference to the received signal.
RS232 Receive serial data from host
RS232 Transmit serial data to host
A signal of between 0v to –7V will switch the modem into standby power mode. Leave
open circuit for normal use
Power supply and common for host.
Configuration input. Connecting 0V to this input will send the configuration menu to the
host when the power is applied. It is left open circuit for normal operation
RS485 Bi-directional data.
Brought low by the modem when a RF carrier is detected or the receiver buffer memory is
full. This can be connected to RTS on the host to inhibit data from the host in duplex
operations.
RS485 Bi-directional data.
DS8200-2 April ’07
©2007 RF Solutions Ltd, www.rfsolutions.co.uk
Page 4
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