Moxa UC-7110-T-LX [17/18] Connecting to a serial device

UC-7101 Hardware User’s Manual Hardware Connection Description

Connecting to a Serial Device

Connect the serial cable between the UC-7101 and the serial device(s).

The two serial ports (P1 and P2) use male DB9 connectors, and can be configured for

RS-232/422/485 by software. The pin assignments are shown in the following table:

Male DB9 Port

RS-232/422/485 Pinouts

Pin RS-232 RS-422

RS-485

(4-wire)

RS-485

(2-wire)

1 DCD TxDA(-) TxDA(-) ---

2 RxD TxDB(+) TxDB(+) ---

3 TxD RxDB(+) RxDB(+) DataB(+)

4 DTR RxDA(-) RxDA(-) DataA(-)

5 GND GND GND GND

6 DSR --- --- ---

7 RTS --- --- ---

8 CTS --- --- ---

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Serial Console Port

The serial console port is a 4-pin pin-header RS-232 port. It is designed for serial console

terminals, which are useful for identifying the UC-7101 boot up message.

Serial Console Port & Pinouts

Serial Console Cable

Pin Signal

1 TxD

2 RxD

3 NC

4 GND

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