The OP5969-1 is an I/O expansion option available for many OPAL-RT’s simulators and FPGA Processor and I/O Expansion Units.
The I/O Expansion connects to the rear-interface of the simulator and provides 4x DB9 connectors containing 6 TX and 6 RX for RS422 signals.
These signals are typically used to transmit differential encoder inputs and outputs.

Page Content

1 General Pin Assignments
2 Specifications
- 2.1 RS422 Digital In
- 2.2 RS422 Digital Out

General Pin Assignments

DB9F Pin	RS422 OUT CH 00-02	DB9F Pin	RS422 IN CH00-02	OP5969-1 RS422 Digital Inputs and Outputs (DIO)	DB9F Pin	RS422 OUT CH 03-05	DB9F Pin	RS422 IN CH03-05
1	TX0+	1	RX0+		1	TX3+	1	RX3+
2	TX1+	2	RX1+		2	TX4+	2	RX4+
3	TX2+	3	RX2+		3	TX5+	3	RX5+
4	N.C	4	N.C		4	N.C	4	N.C
5	+12V limited*	5	+12V limited*		5	+12V limited*	5	+12V limited*
6	TX0-	6	RX0-		6	TX3-	6	RX3-
7	TX1-	7	RX1-		7	TX4-	7	RX4-
8	TX2-	8	RX2-		8	TX5-	8	RX5-
9	DGND	9	DGND		9	DGND	9	DGND

*Same 12V for all the connectors. 400mA total

Specifications

RS422 Digital In

Number of channels	6 differential inputs
Detection threshold	± 0.5 V
Input current	± 3 mA
Delay Low-to-High	65 ns

RS422 Digital Out

Number of channels

6 differential outputs

High level (With load)

Low level (With load)

2.5 V min @ -20 mA

0.5 V max @ 20 mA

Delay Low-to-High

55 ns