5-2
•
SMPTE 269M Fault Reporting
DAC-8013A User Manual (Iss. 01)
Jumper Setup
ESD
Susceptibility
Static discharge can cause serious damage to sensitive
semiconductor devices. Avoid handling circuit boards in high
static environments such as carpeted areas, and when wearing
synthetic fiber clothing. Always exercise proper grounding
precautions when working on circuit boards and related
equipment.
Use the following procedure to set up SMPTE Fault Reporting for the
DAC-8013A
:
1. To access the
JP1
, 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 and flat surface.
3. Set
JP1
as follows:
•
To enable SMPTE Fault Reporting, set jumper
JP1
to
Enable
.
•
To disable SMPTE Fault Reporting, set jumper
JP1
to
Disable
.
This completes the procedure for setting up SMPTE Fault Reporting for the
DAC-8013A
.
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 8. 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
.