TM 55-1930-209-14&P-1
5-19.3 Operating procedures. Telephone system normally requires a system operator in the dayroom. Normal
operating procedures are described in the following paragraphs'
5-19.3.1 Talking with telephone station from operator station in dayroom
NOTE
Hold telephone handset approximately 1/2 to 1 inch from mouth for best results.
When message is complete, hang up telephone handset on hook at mounting
facility.
Any one of 12 crew telephone stations can be paged. Telephone stations 2, 6, 8, 9,
11, and 12 Include more than one telephone headset station.
a.
On telephone station selector box (Figure 5-14), press telephone system PUSH-ON/PUSH-OFF button to supply
24 Vdc power to telephone system. Make sure white indicator light comes on.
b.
On telephone station selector box, turn selector switch knob to station to be called.
c.
On telephone station selector box, press BUZZER switch to ON position.
NOTE
Telephone headset station buzzer or strobe light at telephone station being paged
is activated. Alarms alert crew to an Incoming call. Table 5-3 provides detailed
headset station locations.
d.
Operator removes telephone handset (Figure 5-15) from hook (hang-up switch) on side of radio operator's desk
and checks that corresponding station is on line. Then, operator speaks into handset microphone.
NOTE
Telephone station being called should answer page using station location as a call
sign.
e.
When conversation is finished, system operator must return telephone handset to its cradle on the mounting
facility.
5-19.3.2 Talking with system operator from crew telephone station. Perform following procedures when
crewmembers at any telephone headset station use telephone system to talk with system operator in dayroom.
a.
Connect telephone headset (Figure 5-16) to appropriate telephone headset station jack receptacle (Figure 5-16).
Control volume by adjusting volume switch on headset station.
NOTE
Crewmember's voice is heard from dayroom speaker and speaker volume is
adjusted by setting speaker volume switch on bottom of speaker (Figure 5-17) to
desired loudness.
b.
Press PUSH-TO-TALK switch on headset and speak into microphone using proper call signs. Release switch to
hear system operator.
c.
After system operator responds, send message.
d.
Continue talking until communications are complete. Then, unplug telephone headset from headset station.
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