Serial connector pinout
The Connect EZ has an RJ45 (10 pin) serial connector. The table below contains the pinout information.
If you enable Altpin in EIA-232 mode, the DCD and DSR signals are swapped. This allows use of DCD with 8-wire cables.
| Digi RJ45 10-pin |
Digi RJ45 8-pin |
All Connect EZ Models | MEI models only | MEI models only |
|---|---|---|---|---|
|
EIA-232 Signals (DTE)
|
EIA-422/485 Full-duplex |
EIA-485 Half-duplex |
||
| 1 | RI | TxD- | TxD- | |
| 2 | 1 |
DSR (DCD*) *When Altpin is enabled |
RxD- | RxD- |
| 3 | 2 | RTS | RTS+ | N/A |
| 4 | 3 | GND | GND | GND |
| 5 | 4 | TxD | TxD+ | TxD+ |
| 6 | 5 | RxD | RxD+ | RxD+ |
| 7 | 6 | SG | SG | SG |
| 8 | 7 | CTS | CTS+ | N/A |
| 9 | 8 | DTR | RTS- | N/A |
| 10 |
DCD (DSR*) *When Altpin is enabled |
CTS- | N/A |
PDF
