TM 5-6350-262-14/11, C2
T.O. 31S9-4-39-1, C2
of the ACKNOWLEDGE switch is required and results in
the audible signal being silenced and the AC monitor
power lamps being turned on continuously (indicating
This function is to be performed by
the unit is operating on the primary power supply.
direct and general support personnel.
3-4. Shut-Down Procedure
b. If ac monitor power lamps are not lit, place the
LAMP TEST/ACKNOWLEDGE switch in the LAMP
Unlock and open the monitor cabinet door. Place the
TEST position and observe that the AC monitor power
power switch (S 1) in the OFF position.
lamps light. If they do not light, see chart 7-1.
3-5. Operation Under Emergency Power
3-3. Operating Procedure
The Monitor Cabinet automatically switches to its
There are three modes of operation of the monitor
emergency battery power supply when primary a.c.
cabinet as indicated and monitored by the signal
power fails. It should not be allowed to operate on
a. Under normal condition the AC monitor power
battery power alone for a period of time longer than
specified below. If a.c. power to the Monitor Cabinet is
lamps on the signal module will be continuously on and
off for a period of time longer than specified the
there is no audible alarm. No operator action is
batteries must be recharged in accordance with the
b. If an AC power failure of longer than 3 seconds
instructions given in chapter 7. Failure to do so may
create a safety hazard.
duration occurs the AC monitor power lamps will change
Monitor Cabinet CY7359
to a flashing state and the audible signal will be
Monitor Cabinet CY7360
sounded. Activation of the ACKNOWLEDGE switch is
Monitor Cabinet CY7361
required and results in the audible signal being silenced
The allowable operating times must be halved if the
and AC monitor power lamps being turned off (indicating
batteries in the unit are two years old or if operating
the unit is operating on the emergency power supply).
c. When AC power is reapplied to the unit the
temperature is -20'F.
audible signal will be sounded and the AC monitor
power lamps will change to a flashing state. Activation
Change 2 3-2