7. Test Descriptions
Test Description :
Verify that the monitor ignores a conflict lasting less than 200ms.
Test Sequence :
1. Monitor is powered up in the quiescent state.
2. A GRN-GRN conflict is created for 183ms.
3. Delay 250ms.
4. Check fault state.
Monitor Response to PASS :
Monitor must NOT be found in fault state.
Conflict Detect Timing
Test Description :
Verify that the monitor ignores a conflict lasting less than 200ms and recognizes a conflict lasting more than 500ms.
(Conflicts lasting between 200 and 500ms may or may not be recognized.)
Test Sequence :
1. Monitor is powered up in the quiescent state.
2. A GRN-GRN conflict is created for 183ms.
3. Delay 250ms.
4. Check fault state.
5. GRN-GRN conflict is created for 200ms.
6. Delay 250ms.
7. Check fault state.
8. If no fault is found, conflict time is incremented.
9. Repeat steps 6, 7, and 8 until fault state is found OR conflict time is greater than 500ms.
Monitor Response to PASS :
Monitor must NOT be found in fault state at (4). Conflict times between 200 and 500ms MAY cause the monitor to go
into fault. Conflicts lasting greater than 500ms MUST cause the monitor to go into fault.
Conflict Latching Reset
Test Description :
Verify that a conflict is latched through the loss of AC power.
Test Sequence :
1. Monitor is powered up in the quiescent state.
2. A GRN-GRN conflict is created.
3. Delay.
4. Check fault state.
5. Remove conflict.
6. Delay.
7. Turn off monitor AC power for 1 second.
8. Turn monitor AC power back on.
9. Delay.
10.Check fault state.
Monitor Response to PASS :
Montior must be found in fault at (4). Monitor must be found in fault at (10).
Redfail Ignore Timing
Test Description :
Verify that the monitor ignores a Redfail condition lasting less than 700ms.
Test Sequence :
PCMT-8000 User's Manual
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