2 TS22 Series Test Sets
Introduction
INFORMATION
The TS22 Series Test Sets have been designed with reasonable care
against Radio Frequency Interference (RFI). If RFI is encountered during
the operation of the test set, the following steps may be taken to minimize
the effects:
■ Reorient or relocate the line cord or the test set or both.
■ Increase separation between the source of the interference and the
test set.
■ Try connecting to another working pair.
The TS22 Series Test Sets employ the latest in integrated circuit design to
provide both DTMF and dial pulse output. They also provide last number
redial and repertory memory (auto dial) for 9 individual numbers.
This test set (see Figure 1) often called a “butt-in,” is a self-contained, line-
powered, combination handset used by installers, repair technicians, and
other authorized personnel for line testing and temporary communications.
The TS22DS includes all the features of the TS22 while providing a higher
monitor impedance, increased reliability and improved battery life.
Specifications herein apply to TS22 and TS22DS and TS22A models,
unless otherwise noted.
Figure 1. TS22 Series Test Set
WARNING:
Good safety practices prohibit the connection of the TS22 Series and
similar test sets to 117 volts AC commercial electrical power. Should the
TS22 Test Set be connected to commercial power, all warranties are
immediately voided.
ts22_006
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