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Troubleshooting and System Testing
I
T
NSTALLING A
The HTC-319 Test Card provides you with an easy method of testing Central Office (CO) and Field Tip and Ring
transmit and receive pairs.
HTC-319
Step
Procedure
Whenever installing or removing units from the HMS-358 chassis, be sure to wear an
antistatic wrist strap and connect it to the ESD strap input.
1
If you have not already done so, open the chassis front cover by unscrewing the two hold-down lugs
on the upper corners. The cover folds down.
2
Be sure to plug your ESD wrist strap into the ESD above the HMU slot.
3
Plug the HTC-319 into the shelf slot whose circuit you want to test.
4
Set the four-position slide switch (S1) on the HTC-319 to the type of test you want to perform (LOOP
BACK, LOOP THRU, SHORT, or OPEN).
5
Monitor the circuit at the corresponding test points on the card. The number of each test point
corresponds to the edge connector pin of the circuit under test.
6
When testing is complete, remove the test card, close the front cover, and then screw in the two
hold-down lugs.
7
If you plan to test a line unit, proceed to
The Wideband 3190 should now be operational. If you experience any difficulties at this time, refer
to
"Troubleshooting and System Testing" on page
? ? ? ?
Installer Signature
76
C
(HTC) (O
EST
ARD
Figure 42. Installing a Test Card into the HMS-358
"Line Unit Testing" on page
January 12, 2001
)
PTIONAL
E
SD
strap input
78.
74.
LTPH-SM-1014-03, Issue 3
Installer Check ü ü ü ü
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Date
HMS-358 List 1 and List 2
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