Caution:
As with most electronic equipment, care should
be taken not to expose the equipment to extreme tempera-
tures. To ensure that your Model 3300 will be ready to use,
store the instrument indoors during extreme hot or cold
temperatures. If the instrument is stored overnight in a ser-
vice vehicle, be certain the instrument is brought to speci-
fied operating temperatures before use.
1.2 Introduction
The Model 3300 is a multipurpose metallic time domain
reflectometer, cable fault locator. Model 3300 is designed
to quickly and easily locate cable faults in metallic cables,
primarily on non-loaded twisted pair cable in the telecom-
munications industry.
Using time domain reflectometry, or cable radar, the Model
3300 transmits a signal down the cable. Impedance dis-
continuities along the length of the cable reflect some or
all of the signal energy back to the instrument. These re-
flections are measured and displayed as both a waveform
and a numeric distance to the fault.
The Model 3300 will test all types of metallic paired cables
for open, shorts, impedance discontinuities and many other
cabling problems common to the telecommunications in-
dustry.