Figure 6-1. Operational tests, connection diagram.

TM 11-5805-424-15/NAVSHIPS 0967-220-9010/TO 31W2-2G-41

Figure 6-1. Operational tests, connection diagram.

no-transition alarm send terminals and the

no-transition alarm receive terminals at

(6)

Operate the INPUT SELECT switch (fig.

the rear of the unit (fig. 2-2). Plus 6 volts

2-3) to DATA, and disconnect one lead

should be measured at the loss-of-

from the balanced receive carrier input

transmit-carrier alarm terminals and the

terminals at the rear of the unit (fig. 2-2).

loss-of-receive-carrier alarm terminals at

The ALARM indicator lamp should light,

the rear of the unit.

and a ground (O volt) should be measured

at the no-transition alarm receive

(4)

Operate the INPUT SELECT switch (fig.

terminals and the loss-of-receive carrier

2-3) to SPACE; indications should be as

alarm terminals at the rear of the unit (fig.

in (3) above.

2-2). Plus 6 volts should be measured at

the no-transition alarm send terminals and

(5)

Operate the INPUT SELECT switch to

the

loss-of-transmit-carrier

alarm

OFF. In addition to the indications in (3)

terminals at the rear of the unit. The

above, a positive 6 volts should be

DSS-205A should indicate a steady mark.

measured at the loss-of-transmit-carrier

alarm terminals and at the loss-of receive-

(7)

Reconnect the lead to the balanced

carrier alarm terminals at the rear of the

receive carrier input terminals.

The

ALARM in-

6-5