FBI XL-1T, Installation And Setup Manual

Page: 18 / 72

XL-1T Installation and Setup Guide
3–4
18(+) CONSTANT DC POWER:
The terminal delivers constant unregulated 10.0-15.5VDC power for
devices requiring a constant power such as the VS279. It is connected to a
bell fuse (F3).
Constant power for these devices can also be obtained by splicing the RED (+) battery lead with
an in-line fuse of 3 amps.
19(+) and 20(-) BELL OUTPUT:
The total output power available for sounding devices is 1 amp at 10.5 -
15.5VDC for residential applications, or 12.0 - 14.4VDC for commercial
installations (750mA for UL installations). These terminals will deliver
constant output on Burglary, Audible Panic, and Bell Test. A pulsed
output will be generated on a fire condition. There are separate bell cutoff
times programmable for burglary and fire conditions within the
programming sequence. For UL Household Fire Warning System
installations, mount the speaker indoors for best audibility. Also, for UL
installations, only one speaker should be used.
Before connecting sounding devices, please consult their specifications for proper current draw.
Otherwise, the bell fuse (F3) may be blown. An option exists to supervise the bell output terminals
if zone 4 is programmed as a fire zone (see program questions #11-14). P1-VBELL (+) and P1-T1
(-) or terminals 12 and 13 can be used for a trigger #1 output. See programming question #07,
location 3 for valid trigger types.
In order to connect devices to the triggers, use connector XL-2GTC (trigger cable). Unless
otherwise specified, the trigger output is normally floating and actively sinks on activation
(switched negative)
.
NFPA 72 REQUIREMENT: All the
interconnecting pathways (cable, wire,
etc.) between the alarm system initiating
device (control panel) and the signaling
device (bell, speaker, siren, etc.) shall
be monitored for an occurrence of an
open circuit, which prevents the normal
operation of the system. An occurrence
of an open circuit shall be indicated by a
distinctive trouble signal.
BELL SUPERVISION (Mechanical Bell) - To meet the NFPA 72
requirement, program zone 4 as a fire zone (program question #14,
locations 1 and 2). The bell is supervised for an open circuit (not a
short circuit) across the bell output terminals. The keypad will indicate
that a fire trouble condition has occurred, and fire trouble is reported to
the CS (if enabled in program question #20, location 3). If the bell is
already ringing, the supervision will not take effect until after bell cutoff
time.
Mechanical Bell
22 (+)
23 (-)
Bell Output