Installation
150-454-111-06
20
February 25, 2000
HRE-454
Circuit Testing
Figure 9.
HTC-400 List 1 Test Card
To test circuits on the HTC-400 test card, perform the following steps:
1
Plug the test card into the shelf slot that contains the circuits you want to test.
2
Set test switch S1 (
) on the card to the type of test you want to perform (LOOP BACK, LOOP THRU,
SHORT, or OPEN).
illustrates the connection of Tip and Ring pairs of CO and field
circuits for each setting of the test switch. Pin numbers correspond to edge connector pins for each circuit.
3
Perform the selected test. Monitor the circuits at the corresponding test points on the card.
4
Repeat Steps 2 and 3 as required.
