RJ50 Serial (Enhanced UART)
The USB Centric I/O Board provides one full RS-232 serial port (Enhanced UART) through an RJ50 connector. The port has a shunt to select between +12V (default), +5V, or normal RI functionality. Maximum power capability is 1A from this port. The power output from this port is protected by a self-healing fuse.

| Pin | Signal Name |
|---|---|
| 1 | NC |
| 2 | DCD |
| 3 | DSR |
| 4 | RXD |
| 5 | RTS |
| 6 | TXD |
| 7 | CTS |
| 8 | DTR |
| 9 | GND |
| 10 | RI |
The RJ50 can be converted to DB9 using these Serial Adapter Cables:
- 1432-C304-0003 — RJ50 (10-pin) to DB9 (0.30m)
- 1432-C337-0007 — RJ50 (10-pin) to DB9 (0.65m)