Introduction (18-0015) AM-48 Test Set
0015-S011-2
Note: It is suggested that the foldout at the back of the manual be
extended when using this manual. The FOLDOUT, a front view
of the AM-48, defines the numbers of the switches which are
used to identify the switches throughout this manual.
Glossary . Refer to the Glossary to become familiar with the
terminology used in this manual.
Power . Be sure to read Section 4 and observe the WARNING in ¶4.3
before powering up the AM-48.
Self Test . Perform the Self Test in Section 5 to:
1. confirm that all AM-48 circuits and basic functions are
working properly, and
2. obtain "hands-on" experience with the AM-48 to learn how
the controls operate.
Transmission Measurements . Note that Section 7, Operating
Instructions, gives procedures to
perform transmission measurements.
For
explanation and application of the measurements, see Section 8.
1.2 General Description
Definition and Purpose . In one (1) hand-held unit, the AM-48
provides the field engineer with two (2) instruments:
1. a transmission test set, and
2. a telephone "butt-set".
The
transmission test set tests the integrity and quality of 2-wire or
4-wire voice and data transmission lines by sending selected analog
signals and measuring standard parameters of the received signals.