Table 6-4. Special Purpose Switch Data

T.O. 31W2-2GSC24-2

TM 11-5805-688-14-1

NAVELEX 0967-LP-545-3010

Location

Switch

Function

Display card

Diagnostic NORM/MUX OFF/DEMUX OFF switch. In the MUX OFF

position, all multiplexer error displays are inhibited.

In the

DEMUX OFF position, all demultiplexer error displays are

nhibited. In the NORM position, all multiplexer and demultiplexer

error display circuits are enabled.

FS card

S3A,

NORM/LOOPBACK switch. In LOOPBACK position, these

S3B

switches connect serial data and timing outputs of the

multiplexer to serial data and timing inputs of the demultiplexer.

OEG card

Fifteen-section DIAGNOSTICS AND OVERHEAD switch. Each

separate section has ON and OFF positions, and is associated

with one channel. In OFF position, a positive

stuff

request

(MPSTXX- or DPSTXX-) originating at a channel card is inhibited

at the OEG card. This precludes the display of channel card

errors, and prevents the channel card (multiplexer only) from

receiving positive stuff overhead service.

RCB card

DIAG ON/OFF switch. In OFF position, switch inhibits normally

generated card error signals from leaving the RCB card. The

error signal generated during self-test is not inhibited in either the

OFF or ON switch position.

RCB card

OOT out-of-tolerance ON/OFF switch. In OFF position, switch

inhibits an out-of-tolerance signal from leaving the RCB card.

RT card

Phase adjustment switch. Adjusts phasing of TIMOUT and TIMOUT-

signals generated by RT card. Switch is set to position most

nearly provided coincidence between transitions of TIMOUT and

TIMOUT- signals.

SB card

DIAG ON/OFF switch. Function of this switch is same as that

described for S6 on the RCB card.

TD card

DIAG ON/OFF switch. Function is same as that described for S6 on

the RCB card.

TE/TR card

NORM/DIAG OFF switch. Function is same as that described for S6

on the RCB card.

6-18