TM 55-1930-209-14&P-1
Table 5-5. Telephone System Major Components (Continued)
Component /Quantity
Location
Function
Telephone headset
2 on weatherdeck forward
For stowing headsets
stowage box/10
1 in dayroom
at telephone stations
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 module/1
Dayroom
Permits connection of
telephone handset to
telephone system
5-18 Description of operation
5-18.1 General. The telephone system has 11 major components: telephone station selector box containing power
amplifier and power control module, speaker, headset, buzzer, strobe light, crew headset station, system operator
handset station, 25-foot headset extension cord and headset stowage box. These components of the telephone system
are used for paging between the dayroom system operator and crew personnel and for two-way communications between
crew telephone stations. Various modes of communicating with this system are discussed in paragraphs 5-18.1.1 thru
5-18.1.3
5-18.1.1 Paging from system operator to crew personnel. When system operator in dayroom selects crew telephone
station to be paged on telephone station selector panel and presses BUZZER switch on selector, station buzzer will sound
and/or station strobe light will light.
5-18.1.1.1 Crewmembers, upon hearing buzzer or seeing strobe light, are alerted to connect their headset into headset
station jack receptacle. To speak into headset microphone to let the system operator know that he is on line, the
crewmember must press the PUSH-TO-TALK switch on the earphone. To listen to the system operator, the crewmember
must release the PUSH-TO-TALK switch.
5-18.1.1.2 As soon as crewmember is on line, system operator stops buzzer/strobe by pressing BUZZER switch to OFF
position. To speak, operator must remove telephone handset from cradle and speak into the handset microphone.
5-18.1.2 Paging from crew personnel to system operator. After crewmember plugs telephone headset into headset
station jack receptacle, depresses PUSH-TO-TALK switch on earphone and speaks into microphone, his voice will be
heard from dayroom speaker.
5-18.1.2.1 Upon hearing speaker page, system operator responds by selecting station to be communicated with on
telephone station selector box, removes telephone handset from cradle and speaks into handset microphone.
5-27
