TM 11-5895-463-15
(b) The signal entrance box (fig. 1-5)
(3) Power distribution panel (fig. 1-6).
contains the 26-pair cable receptacle and 26
The power distribution panel contains meter-
pairs of binding posts for optional use in con-
ing and control circuits for the ac distribution
netting signal circuits to the shelter compo-
circuits.
nents. Entrance to the rear of the signal en-
trance box is provided on the shelter interior
(4) Power and signal wiring. Ac power
rear wall when the signal entrance panel is
wiring is routed through power ducts to the
removed.
various ac power outlets. Signal wiring is
Figure 1-2. Operation center, Communication AN/MSC-31A, front curbside view.
1-4
