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3
Physical Characteristics
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Figure 1. Physical Characteristics
Line Cords
See Figure 1.
The test set has a field replaceable line cord. The line
cord is attached through a rubber strain relief at the
transmitter end of the test set. Several different
configurations of line cords are available. See
“Accessories” on page 19 for model numbers.
Battery
See Figure 1.
W
Caution
Use caution when handling batteries. Do
not let the terminals short together. Dispose
of batteries properly to ensure terminals
cannot short. Disposal may be restricted by
local laws.
The test set’s battery compartment makes battery
replacement easy. See “Replacing the Battery” on page
15.
Note
If the test set fails to operate properly, first
replace the battery and retest before sending
the test set in for repair.
A 9 V alkaline battery must be installed for the test set
to operate. Do not use rechargeable batteries.
The battery performs two main functions:
•
It powers the test set when on-hook.
•
It supplies supplementary current to the speaker (if
on) when the test set is off-hook.