11. SB-3082(V)1/GT cordless manual telephone switchboard.
Status: STD-B; NSN: 5805-00-235-5035
General Information
The SB-3082(V) 1/GT is a 50-termination telephone switchboard that can be mounted in a 1/4-ton truck
or in a shelter. The switchboard has no cords and connections are made by pushbutton switches. The
operator can connect any two terminations, can perform preemption of any termination in use, and can
establish a conference for up to six subscribers. The switchboard includes a battery charger to keep the
two 12-volt emergency batteries charged.
Technical Characteristics
Type of Operation ................................................................. Manual with local- or common-
battery signaling
Line Capacity ........................................................................ 50
Common-Battery Signaling/Common Battery/
20-Hz Ringdown Line/Trunk ............................................Any of the 50
1600 Hz Ringdown Trunk .................................................. 1 through 24 only
Tactical Automatic Switch Trunk .......................................1 through 24 only
DC Closure Civilian Lines...................................................47 through 50 only
Signaling (Outgoing)............................................................. 90 V AC, 20 Hz or 1600 Hz
Signaling (Incoming) ............................................................ 90 V AC, 20 Hz or 1600 Hz
Type of Signal .......................................................................Audible tone and lamp
Power Requirement ...............................................................105 to 125 V AC, 50, 60, or
400 Hz or +12 V DC and -12 V DC
(24 V DC center tapped)
emergency use only
Weight ...................................................................................127 kg (280 lbs)
SS 0029
1-16
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