Using an 8-pin RJ-45 plug, the following cable wiring supports most serial terminals or printers with either software or hardware handshaking. This cable is valid with any EtherLite or SCSI Terminal Server RJ-45 serial port.
Most terminals and printers use Data Terminal Ready (DTR) for Ready/Busy hardware handshaking. The cable shown supports this method.
| RJ-45 8-pin (Digi End) |
DB-25 Male (Terminal/Printer) |
|||
|---|---|---|---|---|
| Signal | Pin | Pin | Signal | |
|
RTS |
1 |
connected to |
5 |
CTS |
| DCD+DSR | 2+3 |
connected to |
4 |
RTS |
|
RxD |
4 |
connected to |
2 |
TxD |
|
TxD |
5 |
connected to |
3 |
RxD |
|
SG |
6 |
connected to |
7 |
SG |
|
DTR |
7 |
connected to |
8+6 |
DCD+DSR |
|
CTS |
8 |
connected to |
20 |
DTR |
Important: Other terminal or printer manufacturers may use different methods of flow control. Consult your printer documentation for specific wiring requirements.