Figure 3-15: Polling Loop Connections To The Control Panel; Figure 3-16: Polling Loop Connections Using One 4297 Extender Module - Honeywell VISTA-128FBPN Installation And Setup Manual

VISTA-128FBPN Installation and Setup Guide
NOTE: FIRE DEVICES MAY
BE WIRED DIRECTLY TO
THE PANEL WITHOUT
USING AN ISOLATION
DEVICE.
Polling Loop Supervision
A short on the polling loop is indicated by a trouble on zone 997 and reports as a trouble condition only.
If a device on the polling loop fails (the panel cannot "see" that device), the system displays a trouble condition for all
zones on that device. If the panel is armed when a device fails, and the zone is a burglary zone, the zone will go into
alarm.
A trouble on zone 997 prevents a partition from being armed, unless all polling loop zones on that partition are
bypassed.
Using the 4297 Polling Loop Extender
The 4297 Polling Loop Extender may be used to provide additional polling loop current, to extend the polling loop wire
run length, and/or to provide individual electrically isolated polling loops. Refer to Figures 3-16 and 3-17, to follow.

DO NOT use the 4197 Polling Loop Extender module with the VISTA-128FBPN.
Be sure to include the total current drawn on the polling loop when figuring the total auxiliary load on the panel's
power supply.
INPUT LOOP LIMITS:
• 128 mA MAX. LIMIT CURRENT TO 64mA ON ANY
INDIVIDUAL WIRE RUN.
• NO MORE THAN 64 DEVICES MAY BE USED.
• NO INDIVIDUAL WIRE RUN CAN EXCEED:
CONTROL PANEL
GAUGE LENGTH
#22 650 FT
#20 950 FT
#18 1500 FT
#16 2400 FT

Figure 3-16: Polling Loop Connections Using One 4297 Extender Module

3-16
25
FIRE DEVICES

Figure 3-15: Polling Loop Connections to the Control Panel

INPUT POLLING LOOP
DO NOT CONNECT
• TOTAL LENGTH OF ALL WIRE RUNS
COMBINED CANNOT EXCEED 4000FT.
(2000FT. IF USING SHIELDED WIRE)
28
26 27
+
TO
PANEL
AUX
POWER
4297
EXTENSION POLLING LOOP LIMITS = SAME AS INPUT LOOP
COMBINED INPUT AND EXTENSION LOOP LIMITS:
• NO MORE THAN119 DEVICES COMBINED.
• TOTAL LENGTH OF ALL WIRE RUNS ON BOTH
LOOPS COMBINED CANNOT EXCEED 6400 FT.
(3200 FT. IF USING UNSHIELDED ). WIRE IN
CONDUIT, OR IF USING SHIELDED WIRE
29
VPLEX-VSI
TO
polling_loop-012-V2
BURG DEVICES
CLASS B, STYLE 3
EXTENSION POLLING LOOP
V-PLEX V-PLEX
DEVICE DEVICE
TO
OTHER
DEVICES