Advantech user manual PCI-1625U with OPT8H, PCI-1625U with OPT8FP

5.1.4 PCI-1625U with OPT8H

If you choose accessory Opt8H to connect with PCI-1625U, male DB9 connectors of OPT8H are as shown below.

Table 5.4: PCI-1625U with OPT8H male DB9 Pin Assignment

Pin	Signal
1	DCD
2	RxD
3	TxD
4	DTR
5	GND
6	DSR
7	RTS
8	CTS

9-

5.1.5 PCI-1625U with OPT8FP

If you choose accessory Opt8FP to connect with PCI-1625U, you could access RS-422 device through OPT8FP and female DB25 connectors of OPT8FP are shown as below.

Pin	Signal
2	RxD+
3	TxD+
7	GND
14	RxD-
16	TxD-

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