If Trouble Remains - AT&T MERLIN 410 Service Manual

Step 2. Verify that all plugs are securely snapped into their jacks and that cords are not
damaged. Replace damaged cords with good ones to see if the trouble is fixed.
Count the number of voice terminals and hands-free units.
Step 3.
IF
The total is greater than eight (for the
Model 206) or fourteen (for the Model
410),
An auxiliary power unit is not
immediately available,
Trouble persists,

IF TROUBLE REMAINS

If you have not located the cause of the trouble, either use the optional Trouble Isolation
Manual or call the HELP number (1-800-628-2888).
Quick Check Tests (cont'd)
THEN
You need a 335A Auxiliary Power
Unit. Otherwise, insufficient power
could cause trouble.
Disconnect some of the voice termi-
nals or hands-free units so that the
total is eight for Model 206 or fourteen
for Model 410.
Go on to "If Trouble Remains"
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