User`s manual

Universal PCI Board User’s Manual Pin Assignments
10-27
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 V2 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
Pin
RS-422
RS-485 (4W)
RS-485 (2W)
2 RxD+(B) Data+(B)
3 TxD+(B) ---
7 GND GND
14 RxD-(A) Data-(A)
16 TxD-(A) ---