Table 4-5. Circuit Quality Control Schedule

TM 11-5895-1012-10

program will be used as the criteria for developing the

exceeded.

quality control testing schedule. However, if deemed

rvice Test Schedules. Out-of-service,

necessary, the frequency of testing may be increased

end-to-end quality control tests, will be scheduled by

by the TCF to ensure optimum operating conditions.

the responsible CCO. The tests and frequency of tests

Quality control testing of equipment ensures that the

shown in table 4-5 are considered the minimum

equipment meets the technical specifications con-

essential. Selected out-of-service, end-to-end quality

tained in the applicable technical manuals.

control tests, as determined by the TCF, are required

d. Analysis of Test Results. Analysis of test results

after a transmission media failure, when equipment or

and of equipment failures might indicate a need to

lines are suspected of being faulty, when directed by

revise test schedules. If a particular type of equipment

the appropriate DOCC or operation and maintenance

or circuit is causing little or no outage between quality

element, or when deemed necessary by the TCF to

control tests, an increase in the time interval between

ensure optimum operation.

scheduled tests might be appropriate. Conversely, if

c. Communications equipment Test Schedules.

many outages are incurred or frequent adjustments

Quality control testing of operational and spare equip

are required on the equipment or circuit, a decrease in

ment appearing on the TCF of PTF patch panels will

the time interval between scheduled tests might be ap-

be performed on a scheduled basis. The time interval

propriate.

currently used by the operation and maintenance ac-

tivities in their established preventive maintenance

Table 4-5. Circuit Quality Control Schedule

Legend: 72-Every 72 Hours: Q-Quarterly; S-Semiannual: A-Annual

Note 1. V2 parameters will be used for out-of-service testing of spare unconditioned VF channels and circuits. unless otherwise specified.

Note 2. Certain voice circuits utilize tone-on-while-idle supervisory signaling and will normally have a signal. either speech or tone. present

Measurements will be made at the monitor jack AS false rings will be caused by breaking the supervisory tone The normal speech level is - 12

VU at the 0 dBm TLP. The normal tone-on-while-idle signal level IS - 20 dBm0

Note 3 Testing of channels under the PMP satisfies this requirement

Note 4. Normal day-today technical control actions satisfy in-service test requirements for active dc circuits Spare dc circuits will be tested

for total peak distortion at least once every 72 hours. use of a spare dc circuit for reroute or establishing an on-call circuit satisfies this require-

ment

4-41