Table of Contents
Advertisement
FIRE
INSTALLATIONS
NFPA 72 FIRE ALARM SIGNALING APPLICATIONS
NFPA Standard 72 (Signaling Systems for Central Station Service) requires
24 hours of battery backup for subscriber fire alarm signaling equipment. This
requires the use of three 6 amp hour 12 volt batteries connected in parallel.
One battery is mounted in the 7920SE chassis.
The other two
batteries
must be mounted in the 7920SEBB Battery Cabinet and connections to the
7920SE must be closed-nippled. In addition, the 7920SEBB Battety Cabinet
tamper switch must be connected to one of the zone inputs of the 7920SE.
The 7620TR Transformer must also be used for movidina AC power to the
7920SE, and must be mounted inside the 7920SEBB Ba~ery Cabinet.
MEMO CA81NE'7
No,7W@ESS
Eli!
+
e
W. 7wom
D
SEE
SEE
'=NL
"w
rmlv
MAIWR
MN*
8.0m !W SArr,
ADEMCO Pm m.!n
D
6.OAH
12veAn.
ADEMc0Pm8m12s
leaswl
@AllEFlt'
lm,*sl,~~
tiso
-zL?+ws-
TS21234S67S91O
SEEOETNL .W
6.0AH17#WV.
ADSMC4 PM 8?$-1=
mlOsETO —WRW
Olmrwl
lW'WMIUUMWT
S+WOE M~RW~NfFW2
D9tul.A-
--—-~
~}
AW?M
:
.suW.
m--n
ZG+(E m6L
_
:
TPAHR
s
Cc?nna?bmtzom
SVSEMTRSL
__
;
&-.-wlwNLl
:
10 TU!GGERINQ
I.WFL.$
4.+12WC INTO !C+OHMINPUT IMPSWKE
-26-
Advertisement
Table of Contents
