Troubleshooting and System Testing
LTPH-SM-1052-04
62
July 14, 2002
HMS-358 List 5 and List 6
I
NSTALLING
A
T
EST
C
ARD
(HTC) (O
PTIONAL
)
The HTC-319 List 1 test card provides you with an easy method of testing CO and field Tip and Ring pairs.
Figure 39.
Installing a Test Card into the HMS-358
Step
Procedure
Installer Check
ü
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
Open the chassis front cover by unscrewing the two hold-down lugs on the upper corners. The cover
folds down.
H
2
Be sure to plug your ESD wrist strap into the ESD above the HMU slot.
H
3
Lift the retention bar at the top of the chassis to allow insertion of the module.
H
4
Plug the HTC-319 into the shelf slot whose circuit you want to test.
H
5
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).
H
6
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.
H
7
When testing is complete, remove the test card, pull down the retention bar, close the front cover,
and then screw in the two hold-down lugs.
H
8
If you plan to test a line unit, proceed to
“Line Unit Testing” on page 64
. The Wideband 3190 should
now be operational. If you experience any difficulties at this time, refer to
H
Installer Signature
?
Date
HTC-319
E
strap input
SD
