GE Energy
4.3RS-232 Connections
The D400 accepts connections to RS-232 type devices through the RS-232 Adapter. The RS-232 Adapter (GE Part No. 520-0207) is a standard RS-232 serial I/O adapter card that plugs into any serial communication slot (slots 1 through 8) on the D400. It contains two independently isolated RS-232 serial ports (Port 1 and Port 2) each with a DB-9 connector.
The required RS-232 cable is a serial null modem, DB-9F to DB-9M cable. The cables must be shielded and DB-9 connector covers must provide EMC shielding (e.g. metalized plastic or die-cast metal covers).
See section “3.3 RS-232 Adapter” for configuration options.
»To connect RS-232 type devices to the RS-232 Adapter, use the following cable connection:
RS-232 Port DB-9 Connector Signal Definitions
Pin | DTE (default) | | DCE |
Number | Function | Signal Flow | Function | | Signal Flow |
| |
| | | | | |
1 | DCD | IN | DCD | | IN |
| | | | | |
2 | RXD | IN | TXD | | OUT |
| | | | | |
3 | TXD | OUT | RXD | | IN |
| | | | | |
4 | DTR | OUT | DSR | | IN |
| | | | | |
5 | Signal GND | - | Signal GND | | - |
| | | | | |
6 | DSR | IN | DTR | | OUT |
| | | | | |
7 | RTS | OUT | CTS | | IN |
| | | | | |
8 | CTS | IN | RTS | | OUT |
| | | | | |
9 | Not connected | - | Not connected | | - |
| | | | | |
48994-0089–1.00–2, General
