The IOB08DB9V2/V3/V4 has the following pinouts when applied with the BlueHeat PCI/8.
DB-9 Pin # | RS-232 | RS-485 |
1 | DCD | RxD+ |
2 | RXD | TxD+ |
3 | TXD | TxD- |
4 | DTR | RxD- |
5 | Signal Ground | Signal Reference |
6 | DSR | CTS- |
7 | RTS | RTS- |
8 | CTS | RTS+ |
9 | RI | CTS+ |
- OS
- Unix/Solaris
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