Maintenance and Troubleshooting
19
5 Maintenance and Troubleshooting
Reference Drawings:
System Riser Diagram; Single Pole (SP).............................................................
DWG-093476
System Riser Diagram; Momentary ...................................................................
DWG-096221
System Riser Diagram; BCD Switch ...................................................................
DWG-096315
System Riser Diagram; Rotary ............................................................................
DWG-097099
OSI-32 Wiring Diagram, Toggle Switches .........................................................
DWG-097134
Assembly, Switch Interface, 32 Input ................................................................
DWG-086312
Getting Started
1.
Disconnect power before any repair or maintenance work is done on the interface.
2.
Qualified service personnel must make any access to internal electronics.
3.
Disconnect power when the SI-32 interface is not in use.
Technical Specifications
Functional Description:
The switch interface is used in conjunction with one or more
Venus
®
1500 controlled displays. The unit has a RS232 input, RS422 input, and RS422
output. The inputs are used for connection to a Venus
®
1500 Software System for
message programming. The output is connected to one or more electronics message
displays. Thirty-two isolated inputs control what messages will be displayed.
LED Functions
Power:
The green power LED should be on continuously, indicating that power is on.
Run/TX:
The red RUN/TX LED should blink slowly indicating the microprocessor is running.
The LED should blink faster while transmitting.
RX:
The amber RX LED should flash when the Venus
®
1500 Software is communicating with
the displays. If the Venus
®
1500 Software is disconnected, the amber TX LED may remain
on.
Note:
This unit needs only the Venus
®
1500 Software for initial message programming.