Ross CMA-8011A, Руководство пользователя

Страница: 20 / 28

Jumper Setup
If fault reporting for the CMA-8011A is desired, use jumper JP5 - FAULT REPORT (269M) to set
up the card.
1. To access the jumper, remove the card from the frame by pressing down the white
card ejector tab and pulling the card from the frame slot.
2. Observing all static discharge and handling precautions, place the card with the
component side facing up on a clean flat surface.
3. To enable SMPTE fault reporting, set jumper JP5 to EN position.
4. To disable SMPTE fault reporting, set jumper JP5 to DIS position.
JP5
- Fault Report
Figure 6. SMPTE 269M Alarm Reporting Jumper Location
Frame Connections
The SMPTE 269M Fault Reporting connection on RossGear 8000 series frames is provided by the
auxiliary telco connector, AUX A , for interfacing with a customer-designed alarm system.
AUX A Connector for SMPTE 269M
Fault Reporting
Figure 7. SMPTE 269M Alarm Reporting Frame Connections
Details
The fault report contacts are closed when the card detects an internal failure or a power loss condition.
The fault report will pulse closed for 1 to 2 ms every 16ms when the input signal is low, missing, or
invalid.
Some internal failures are:
•
Failure of the card to initialize
•
Failure in the fault reporting circuitry
•
Failure to detect a valid input signal to the card
For additional information on alarm system design, refer to the SMPTE document ANSI/SMPTE
269M - 1999 .
3-2
•
SMPTE 269M Fault Reporting CMA-8011A User Manual (Iss. 05)