PERFORMANCE STANDARDS

T.O. 31W2-2GSC24-2

TM 11-5805-688-14-1

NAVELEX 0967-LP-545-3010

3. If a multiplexer set is installed so that the

input/output cabling is readily visible, carefully inspect all

1. Connect cables between multiplexer MUX

cables for evidence of insulation deterioration due to

DATA OUT and demultiplexer DEMUX DATA IN

aging, fraying, severe bending or flexing, or other such

connectors, and between multiplexer MUX TIMING OUT

causes.

and demultiplexer DEMUX TIMING IN connectors (figure

6-9).

4. If cabling or connector damage is observed,

refer to paragraph 6-65 for corrective maintenance

NOTE

instructions.

The test setup cables required for these

6-38.

PERFORMANCE STANDARDS

procedures are identified in figure 6-10.

6-39. GENERAL. The tests in the following

paragraphs are performed for purposes of checking that

2. If testing is performed in a shop area,

the multipelxer set is operating properly. The tests

connect multiplexer set to a source meeting the power

include self-testing and lamp testing, a voice processing

requirements specified in table 1-1.

performance test, and a bit count integrity (BCI) test.

The tests may be performed with the multiplexer set in its

Set POWER CONTROL switch to .ON.

normally installed position or in a maintenance shop.

Testing should be performed following major multiplexer

Momentarily

press

DISPLAY

RESET

set repairs and whenever improper operation is

switch.

suspected.

5. Observe that POWER CONTROL ON

6-40.

SELF-TESTING AND LAMP TESTING. Perform

indicator is lighted and the following indicators are out:

self-testing and lamp testing of the multiplexer set as

prescribed in paragraphs 6-32 and 6-33, respectively.

LOSS OF MUX TIMING

LOSS OF DEMUX TIMING

6-41. VOICE PROCESSING PERFORMANCE TEST.

Perform a voice processing performance test as follows:

LOSS OF FRAME A

NOTE

LOSS OF FRAME B

Testing of voice processing performance

LINK ERROR RATE

requires that the multiplexer set be set up

in a full duplex configuration. Refer to

POWER SUPPLY

chapter 3 for setup instructions

TEMPERATURE

MULTIPLEXER CARD

DEMULTIPLEXER CARD

6-37