Figure 2-26. Dc interbay patch panel with 48 lamps, interconnection diagram

TM 11-5895-1012-10

Figure 2-26. Dc interbay patch panel with 48 lamps, interconnection diagram.

spectrum. The output provides a signal to a circuit

speaker combinations. This allows two independent in-

under test for measure at the other end with a noise

puts and outputs. Both inputs are usually wired to

jacks in the miscellaneous patch panel of that particu-

measuring test set.

lar test bay. For monitoring purposes, either of these

d. Dual Channel Dc Amplifier Recorder. The dual

two inputs may be patched via interbay trunks to the

channel dc amplifier recorder is used for simultaneous

monitor (MON) jacks in the voice frequency patch

reading of two related variables then the variables

panel without degradation or interruption of circuit

need to be analyzed with respect to each other in time,

operation.

or when up to two variables need to be permanently re-

b. Teat Bay Alarm Panels. Alarm panels are usually

corded.

mounted at the top of each voice frequency and dc cir-

e. Transmission Measuring Test Set. The transmis-

cuit test bay in the Technical Control Facility. The

sion measuring test set is used to measure transmis-

panel contains one or more rows of lights for the pur-

sion line and system characteristics such as attenua-

pose of giving remote alarm indicates for selected

tion, frequency response, or gain. It contains a wide

equipment alarm circuits. The alarms circuit to be re-

range oscillator, a voltmeter, and a patch panel to

match both the oscillator and the voltmeter to the

moted are usually determined by the Technical Con-

trol Facility personnel.

various impedances found on the DCS (usually 135,

c. Noise Generator. The noise generator gives a flat

600 and 900 ohms).

response output signal over a wide range of the audio

f. Noise Measuring Test Set. The noise measuring