General Dynamics CG-1220, Operation And Maintenance Manual

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Installation
3-10 CG-1220 DTR
Serial Port 3 is factory set to:
TABLE 3-9 DEFAULT SERIAL INTERFACE SETTINGS (PORT 3)
Setting Changes Allowed
19200 bps
Shell = M&C
Master Address = 0
Slave Address = 1
Address Offset = 48
These parameters can be changed using the following menu:
Configs/Comm Parameters/Port 3
8 Data bits
No parity
These parameters cannot be changed by the user.
1 stop bit
Port 3 is a half-duplex RS-485 port and is a 9-pin D subminiature socket connector.
Pin-outs for the Serial Interface Port 3 are given in Table 3-10.
TABLE 3-10 SERIAL INTERFACE PORT #3 PIN-OUTS (RS-485)
PIN FUNCTION
1 Data + (Half-Duplex)
2
No Connection
3
No Connection
4 No Connection
5 No Connection
6 Data - (Half-Duplex)
7 Cable Shield
8 No Connection
9 No Connection