Figure 1-1. Balanced magnetic switch SA-1955( )FSS-9(V).

TM 5-6350-262-14/8

NAVELEX 0967-LP-466-9081

TO31S9-4-31-1 Chg 1

assembly), and an actuating magnet assembly

door itself. The switch assembly and magnet are

(magnet). The switch assembly is installed on a non-

configured to provide for concealment of the mounting

moving surface. The magnet is installed on the moving

hardware to prevent unauthorized removal after

surface. If used to secure a window, the magnet is

installation, without causing an alarm condition. The

installed on a part of the window that moves whenever

relationship of the BMS to other J-SIIDS components is

the window is opened. The switch assembly would then

illustrated in figure 1-2.

be installed on a nonmoving part of the window (frame).

If used to secure a door, the magnet is installed on the

Figure 1-1. Balanced magnetic switch SA-1955( )FSS-9(V).

1-9. Description

actuated switch, an adjustable biasing magnet, and a

a. Switch Assembly.

The switch assembly is

tamper switch which is activated whenever the cover is

fabricated as an aluminum box, with cover. Each end of

removed. The assembly is configured to provide for

the box is threaded to allow interfacing with l/2 -inch

concealment of the mounting hardware to prevent

electrical conduit. A threaded plug is provided with each

unauthorized removal after installation. The cover is

assembly for installation in either conduit access hole.

provided with a weather seal gasket.

Electrical

This plug is internally secured by means of a slot-head

connections are internally

screw. The switch assembly contains a magnetically

Change 1

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