Aalborg PWE Digital - Manual (Page 11)

6
Communication Settings for RS-485/RS-232 communication interface:
Baud rate: ------------ 9600 baud
Stop bit: ------------ 1
Data bits: ------------ 8
Parity: ------------ None
Flow Control: ------------ None
RS-485 communication interface connection:
The RS485 converter/adapter must be configured for: multidrop, 2 wire, half duplex
mode. The transmitter circuit must be enabled by TD or RTS (depending on which
is available on the converter/adapter). Settings for the receiver circuit should follow
the selection made for the transmitter circuit in order to eliminate echo.
Pin D ------------ RS-485 T(-) or R(-)
Pin E ------------ RS-485 T(+) or R(+)
Pin B ------------ RS-485 GND (if available)
RS-232 communication interface connection:
Crossover connection has to be established:
Pin D ------------ RS-232 RX (pin 2 on the DB9 connector)
Pin E ------------ RS-232 TX (pin 3 on the DB9 connector)
Pin B ------------ RS-232 SIGNAL GND
(pin 5 on the DB9 connector)