TM 55-1930-209-14&P-12
Table 4-1. Telephone System Major Components
Component /Quantity
Location
Function
Telephone power
Mounted in station
Amplifies calls from handset
amplifier/1
selector box on aft
station so they can be heard at
(M3131)
bulkhead in dayroom
the headset stations
Telephone speaker/1
Located above operator's
For converting signals from
(801-401)
desk in dayroom
headset stations into sound
Telephone power control
Mounted in station
Acts as regulator between
module/1
selector box on aft
power source and power
(M3116)
bulkhead in dayroom
amplifier
Telephone station
Mounted on aft bulkhead
For selecting telephone station
selector box/1
in dayroom
(12 stations) to alert crew
personnel by activating buzzer
or strobe light, for controlling
telephone power amplifier
volume and for turning on/off
24 Vdc to telephone system
Telephone headset/15
Stored in the ROWPU
Allows crew personnel to
(H3342)
space aft storage area
receive incoming calls from
system operator and transmit
messages (talk-back) when
connected to associated
headset station jack receptacle
Telephone station
Mounted throughout barge
Alerts crew personnel at
buzzer/14
near headset stations
headset station that they are
(1C/Z154)
being paged
Telephone station strobe
Mounted on overhead In
Alerts crew personnel at
light/3
center of ROWPU space
headset station that they are
(6850-138)
and in void 4 port and starboardbeing paged
Telephone indoor
Mounted in dayroom,
Allows crew personnel to plug in
headset station/1 4
workshop, ROWPU space,
telephone headset and
(M3141)
and each void
communicate with dayroom
system operator or another
headset station
Telephone outdoor
Mounted on weatherdeck
Allows crew personnel to plug in
headset station/7
in 5 stowage boxes and
telephone headset and
(M3141)
on top of deckhouse In
communicate with dayroom
two watertight boxes
system operator or another
headset station
Operator telephone
Mounted on operator's
Allows messages to be sent to
handset station/i
desk in dayroom
and received from crew
(WE-2)
telephone stations
Telephone headset
2 on weatherdeck forward
For stowing headsets at
stowage box/10
1 In dayroom
telephone stations
(10444-003)
1 In ROWPU space
(Barges 2 and 3)
1 in void 4 starboard
1 on weatherdeck
starboard (fuel oil fill)
2 on weatherdeck aft
2 on deckhouse top
Handset adapter
Dayroom
Permits connection of telephone
module/1 (M3146)
handset to telephone system
4-3
