PCIe® module C9900-E310 with 2 serial interfaces RS422

The RS422 PCIe module contains two electrically isolated ix Industrial® type B sockets for high-speed serial data transmission. Two ix Industrial® type B to D-sub, 9-pin adapter cables are required (order identifier C9900-K922). The adapter cables are 50 cm long. The signal transfer takes place symmetrically.

The channels are protected by a common overvoltage protection. If an overvoltage occurs at one of the channels, both channels are switched off.

PCIe® module C9900-E310 with 2 serial interfaces RS422 1:Fig.12: RS422 interface pin numbering
RS422 pin assignment

Pin

Signal

Type

Description

1

N/C

-

Not used

2

TxD +

Data-Out +

Transmit 422

3

RxD +

Data-In +

Receive 422

4

N/C

-

Not used

5

GND

Ground

Ground

6

VCC

VCC

+5 V

7

TxD -

Data-Out -

Transmit 422

8

RxD -

Data-In -

Receive 422

9

N/C

-

Not used

10

N/C

-

Not used

On delivery the interface is configured as a full duplex endpoint as standard:

RS422 standard configuration

Function

State

Echo

on

Auto send

off

Always send

on

Auto receive

off

Always receive

on

Termination

on