1 Pins 8 and 6 in the DB-25 connectors are connected internally. |
DB-25 Pin | Name | V.35 Pin | Definition | Direction |
---|---|---|---|---|
2 | TXD | P | Transmit Data | Output |
14 | TXD- | S | ||
3 | RXD | R | Receive Data | Input |
16 | RXD- | T | ||
4 | RTS | C | Request to Send | Output |
5 | CTS | D | Clear to Send | Input |
6 | DSR | E | Data Set Ready | Input |
7 | SGND | B | Signal Ground | |
8 | DCD | F | Data Carrier Detect | Input |
15 | ST | Y | Send Timing | Input |
13 | ST- | AA | ||
17 | RT | V | Receive Timing | Input |
19 | RT- | X | ||
20 | DTR | H | Data Terminal Ready | Output |
PortMaster |
V.35 | Name | Definition | Direction | X.21DB-15Pin | Name |
---|---|---|---|---|---|---|
7 | B | SGND | Signal Ground | 8 | SGND | |
10 | Control B | |||||
4 | C | RTS | Request to Send | Output | 3 | Control A |
5 | D | CTS | Clear to Send | Input | ||
8 | F | CD | Carrier Detect | Input | 5 | Indicate A |
3 | R | RXA | Receive Data | Input | 4 | RXA |
16 | T | RXB | Receive Data | Input | 11 | RXB |
17 | V | RX CLKA | Receive Timing | Input | 6 | CLKA |
15 | Y | TX CLKA | Send Timing | Input | ||
19 | X | RX CLKB | Receive Timing | Input | 13 | CLKB |
13 | AA | TX CLKB | Send Timing | Input | ||
2 | P | TXD A | Transmit Data | Output | 2 | TXA |
14 | S | TXD B | Transmit Data | Output | 9 | TXA |
PortMaster | RS-530CSU/DSU Pin | Name | Definition | Direction |
---|---|---|---|---|
2 | 2 | TXD | Transmit Data | Output |
14 | 14 | TXD- | ||
3 | 3 | RXD | Receive Data | Input |
16 | 16 | RXD- | ||
4 | 4 | RTS | Request to Send | Output |
5 | 5 | CTS | Clear to Send | Input |
6 | 6 | DSR | Data Set Ready | Input |
7 | 7 | SGND | Signal Ground | |
8 | 8 | DCD | Data Carrier Detect | Input |
15 | 15 | ST | Send Timing | Input |
13 | 12 | ST- | ||
17 | 17 | RT | Receive Timing | Input |
19 | 9 | RT- | ||
20 | 20 | DTR | Data Terminal Ready | Output |
RJ-45 Pin | Name | Definition | Direction |
---|---|---|---|
3 | TXD | Transmit Data | Output |
6 | TXD- | ||
4 | RXD | Receive Data | Input |
5 | RXD- |
ISDN/U Port | Direction |
---|---|
4 | Input/Output |
5 | Input/Output |