
| Pin 1 | .nc. | Pin 20 | RI(3) |
| Pin 2 | DCD(3) | Pin 21 | DTR(3) |
| Pin 3 | GND | Pin 22 | DSR(3) |
| Pin 4 | CTS(3) | Pin 23 | RTS(3) |
| Pin 5 | RxD(3) | Pin 24 | TxD(3) |
| Pin 6 | RI(4) | Pin 25 | DCD(4) |
| Pin 7 | DTR(4) | Pin 26 | GND |
| Pin 8 | DSR(4) | Pin 27 | CTS(4) |
| Pin 9 | RTS(4) | Pin 28 | RxD(4) |
| Pin 10 | TxD(4) | Pin 29 | RI(2) |
| Pin 11 | DCD(2) | Pin 30 | DTR(2) |
| Pin 12 | GND | Pin 31 | DSR(2) |
| Pin 13 | CTS(2) | Pin 32 | RTS(2) |
| Pin 14 | RxD(2) | Pin 33 | TxD(2) |
| Pin 15 | RI(1) | Pin 34 | DCD(1) |
| Pin 16 | DTR(1) | Pin 35 | GND |
| Pin 17 | DSR(1) | Pin 36 | CTS(1) |
| Pin 18 | RTS(1) | Pin 37 | RxD(1) |
| Pin 19 | TxD(1) |
| Pin 1 | DCD |
| Pin 2 | RxD |
| Pin 3 | TxD |
| Pin 4 | DTR |
| Pin 5 | GND |
| Pin 6 | DSR |
| Pin 7 | RTS |
| Pin 8 | CTS |
| Pin 9 | RI |