transmitter housing.
d.
Trouble Message Designation: Trouble message shall be
automatically transmitted in the event of a failure in excess of 1
minute of the main operating power source of the transmitter.
2.1.4
Transmitter Housings
The housings on transmitters shall be fabricated from corrosion-resistant
cast metal or suitable substitute which has the physical strength
sufficient to ward off physical damage normally expected to be received by
vandalism. The housing shall be sealed against the entry of moisture,
dust, dirt, insects, and other foreign objects. Exterior housings shall be
NEMA 4X.
2.1.4.1
Lock
Internal components shall be protected from vandalism by a tamper-proof
lock on the transmitter housing. The housing shall allow access to all
internal components for testing, servicing, and replacement at the
installation site.
2.1.4.2
Mounting
**************************************************************************
NOTE: Choose the type of mounting most suited for
application of design.
**************************************************************************
Transmitter housings shall be designed for universal mounting on walls,
poles, or pedestals. Mounting shall utilize either lag bolts, anchor
bolts, stainless steel banding, mounting brackets, or a shackle/bolt
combination, as applicable to the specific installation.
2.1.4.3
Operating Panel
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NOTE: Use with manual street boxes only.
**************************************************************************
Each publicly accessible transmitter shall have an operating panel that
incorporates a dedicated signal initiating device (pull hook or push
button) clearly identified for the initiation of "FIRE" signals. The
device shall be protected with a conventional spring-loaded, "fast-action"
break-glass, or similar pull-type door that allows observation of the
actuation device when in the closed position. The door shall be fabricated
and finished in a manner consistent with that required of the main housing.
2.1.4.4
Labeling
**************************************************************************
NOTE: Use with manual street boxes only.
**************************************************************************
Each publicly accessible transmitter shall be labeled on both sides and on
the front surface with the word "FIRE." The label shall be white with red
SECTION 13852A
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