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OP5969-1 RS422 Digital Inputs and Outputs (DIO)
- Sylvain Ménard
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
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 12 V for all the connectors. 400 mA total
Specifications
RS422 Digital In
Number of channels | 6 differential inputs |
|---|---|
Detection threshold | ± 0.5 V |
Input current | ± 3 mA |
Input Differential Voltage (Max) | ± 25V |
Common Mode Input Voltage | -15V to +15V |
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 |
0 V - 5 V |
|
|
Typical voltage swing |
|
|
Delay Low-to-High | 55 ns |
|
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