Table 2-7. ERROR RATE COUNTER Display

TM 11-5895-1179-13 EE132-EA-OMP-010/E106 KY883 TO 31S1-2GSC-161

Display

Circuit Card

BDl

Decoder Plug-In-Circuit Card Assembly

BD2

Interleaver Plug-In-Circuit Card Assembly

BD3

I/O Plug-In-Circuit Card Assembly

BD4

Power Supply Plug-In-Circuit Card Assembly

BD5

Display and Control Circuit Card Assembly

(5)

The electronic signal may sound and an ON LINE FAULT INDICATOR may come on, depending on the cause of

the problem. The off-line self-test stops at this point with the bad circuit card assembly number displayed on the

ERROR RATE COUNTER.

(6)

If no problem is found the off-line self-test runs until T19 is displayed on the ERROR RATE COUNTER. At this

point you can check all the switches on the front panel assembly except the FUNCTION select switch and the

ON/OFF switch, or you can let the off-line self-test run indefinitely.

(7)

If you want to check the front panel assembly switches, you have 5 seconds from the time T19 is displayed on the

ERROR RATE COUNTER to change the position of a front panel assembly switch. The ERROR RATE

COUNTER displays the number of the switch you changed and the position you changed it to. Table 2-7 shows

the ERROR RATE COUNTER display for the individual front panel assembly switches and their positions.

Table 2-7. ERROR RATE COUNTER Display

Switch

Name

Number

Position

Display

ENCODER MODE

select switch

DECODER MODE

select switch

ALARM SET

INCREMENT (up)

switch

center

DECREMENT (down)

error rate

DISPLAY SELECT

center

switch

THRESHOLD (down)

ON LINE/SELF

ALARM DISABLE (up)

TEST switch

center

LAMP TEST (down)

3D*

*Changing the ON LINE/SELF TEST switch to the LAMP TEST position (down) during the operator interface test

portion of the off-line self-test causes the off-line self-test to start over from the beginning.

2-16