binding posts for optional use in
connecting signal circuits to the
shelter components. Entrance to
the rear of the binding post signal
entrance box is provided on the
interior rear wall of the shelter
when the signal entrance panel
(3) Power distribution panel (fig. 10).
The power distribution panel contains
metering and control circuits for the
ac distribution circuits.
(4) Power and signal wiring (fig. 11, 12,
and 13). Ac power is distributed
through power ducts to the various
ac power outlets. Signal wiring is
distributed through signal ducts to
the various components.
b. Switchboard, Telephone, Manual SB-22
(*)/PT (fig. 13). The SB-22(*)/PT
11-5805-262-12 ) is a local battery telephone
switchboard used to switch 12 telephone or
voice-f requency (vf) teletypewriter circuits.
c. Telephone Set TA-312/PT (fig. 24).
The TA-312/PT's are used for local telephone
communication. One TA-312/PT (less carry-
ing case) is mounted on the curbside wall
(fig. 11). Three TA-312/PT's are stored
in a storage cabinet; when required for use,
they are placed on the tabletop (fig. 12 and
13) adjacent to a PHONE jack.
d. Terminal, Telegraph TH-5/TG (fig. 13).
The TH-5/TG's (TM 11-5805-246-10) are
folding slide panels (not shown) for
used to send and receive vf teletypewriter
weather protection and secured, with
signals for the teletypewriters (e and f be-
(a) The power and signal entrance box
e. Teletypewriter TT-4(*)/TG (fig. 13).
The TT-4(*)/TG's (TM 11-5815-206-12) are
binding posts for connecting ac
used to send (keyboard) and receive (printed
power and signal circuits to the
page) dc teletypewriter signals.
shelter components. It also con-
tains a duplex convenience outlet
TT-76(*)/GGC (fig. 13). The TT-76(*)/GGC
receptacle (115V AC) equipped
(TM 11-2225) is used to send (keyboard or
with a spring-loaded watertight
cover. Entrance to the rear of the
dc teletypewriter signals.
power and signal entrance box is
g. Terminal Box TA-125/GT. The TA-
provided on the interior rear wall
125/GT (TM 11-2138) is stored in a storage
when the power entrance panel
cabinet. It is a 24-pair terminal box used to
interconnect field-wire circuits during patch-
ing, testing, and monitoring procedures.
(b) The binding post signal entrance