V.35 is a serial WAN interface for connecting routers to DSU/CSU equipment using a square 34-pin Winchester M/34 connector. Used for leased line connections at 64 kbps to 2 Mbps before Ethernet WAN replaced it.
| Pin | Name | Function | Type |
|---|---|---|---|
| A | GND | Ground | GND |
| B | GND | Ground | GND |
| C | RTS | Request to send | BUS |
| D | CTS | Clear to send | BUS |
| E | DSR | Data set ready | BUS |
| H | DTR | Data terminal ready | BUS |
| P | TxDA | Transmit data A positive | BUS |
| R | RxDA | Receive data A positive | BUS |
| S | TxDB | Transmit data B negative | BUS |
| T | RxDB | Receive data B negative | BUS |
| X | TxCA | TX clock A | BUS |
| Y | RxCA | RX clock A | BUS |
V.35 is a serial WAN interface for connecting routers to DSU/CSU equipment using a square 34-pin Winchester M/34 connector. Used for leased line connections at 64 kbps to 2 Mbps before Ethernet WAN replaced it.