TM 11-7025-234-23
Momentary toggle switch used to select the SEND
SEND/LPBK/CLEAR
command, OFF, or the CLEAR command.
(A8 Board)
o
2 REMOTE indicator
Light-emitting diode which lights to indicate that
a Remote Audio Busback or Remote Dc Busback has been
(A8 Board)
selected.
o
3 LOCAL indicator
Light-emitting diode which lights to indicate that
a remotely requested Dc Loopback or Audio Busback has
(A8 Board)
been performed locally.
Toggle switch used to select Remote Dc Busback or
RLB/DC/AUDIO switch
Remote Audio Busback.
(A8 Board)
Alphanumeric display of the selected data rate and
@ RATE/Mode indicator
mode of operation for the modem. The RATE is
derived from the output of the frequency counter cir-
cuit which monitors transmit data clock pulses for
the transmit selected rate. The mode is derived from
the control board configuration jumper selection
(table l-l).
o
Thumbwheel switch used to select the data transmission
6 Data RATE thumbwheel
rate. Settings are 1 thru 5 (fig. 1-9).
selector (A4 Board)
Front Panel Controls and Indicators (1 of 2)
2-4
