Installation
CG-1220 DT
R
3-9
3.4 Serial Interface Hardware Configuration
Serial Ports 1 and 2 are factory set to:
TABLE 3-6 DEFAULT SERIAL INTERFACE SETTINGS (PORTS 1&2)
Setting Changes Allowed
19200 bps
Echo enabled
Newline enabled (CR-LF)
Shell = M&C
These parameters can be changed using the following menu:
Configs/Comm Parameters/Port 1 or Port 2
8 Data bits
No parity
1 stop bit
These parameters cannot be changed by the user.
Port 1 can only be an RS-232 port, while Port 2 may be configured as RS-232 or
RS-422. Note that these two pin outs coexist on the same 9-pin connector
without conflict. Both serial ports are 9-pin D subminiature socket connectors.
Pin-outs for the Serial Interface Ports 1 and 2 are given in Tables 3-7 and 3-8.
TABLE 3-7 SERIAL INTERFACE PORT #1 PIN-OUTS (RS-232)
PIN FUNCTION
1 No Connection
2 RX
3 TX
4 No Connection
5 Signal Ground
6 No Connection
7 No Connection
8 No Connection
9 No Connection
TABLE 3-8 SERIAL INTERFACE PORT #2 PIN-OUTS (RS-232/422)
PIN FUNCTION
RS-232 ONLY RS-422 ONLY
1 No Connection TX+
2 RX (from DCE) No Connection
3 TX (from DTE) No Connection
4 No Connection RX+
5 Signal Ground Signal Ground
6 No Connection TX-
7 Request to send (RTS) (from DTE) No Connection
8 Clear to send (CTS) (from DCE) No Connection
9 No Connection RX -