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Universal PCI Board User’s Manual Pin Assignments

11-21

The pin assignments for the DB25 (male) serial connector are shown below. There are different pin

assignments depending on the serial interface that your board is configured for.

Pin RS-232

RS-422

RS-485 (4W)

RS-485 (2W)

2 TxD RxD+(B) Data+(B)

3 RxD TxD+(B) ---

4 RTS --- ---

5 CTS --- ---

6 DSR --- ---

7 GND GND GND

8 DCD TxD-(A) ---

20 DTR RxD-(A) Data-(A)

DB25 (Female)

The following accessories provide DB25 (female) serial connectors for your UPCI board:

Accessory Board Connector Serial Connectors

OPT8A, OPT8S, *OPT8F,

*OPT8Z, *OPT8K, *OPT8I

DB62 (female) 8×DB25 (female)

* The OPT8F, OPT8Z, OPT8K, and OPT8I are designed for use with the CP-168U only.

13 1

25 14

The pin assignments for the DB25 (female) serial connector are shown below. There are different

pin assignments depending on the serial interface that your board is configured for.

OPT8A, OPT8S

Pin RS-232

RS-422

RS-485 (4W)

RS-485 (2W)

2 RxD TxD+(B) ---

3 TxD RxD+(B) Data+(B)

4 CTS --- ---

5 RTS --- ---

6 DTR RxD-(A) Data-(A)

7 GND GND GND

8 DCD TxD-(A) ---

20 DSR --- ---

OPT8F, OPT8Z, OPT8K, OPT8I

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Moxa CP-138U-I-T Manual do Utilizador Página 140