Honeywell VISTA-32FBPT - Figure 3-17: Polling Loop Connections Using One 4297 Extender Module; Figure 3-18: Polling Loop Connections Using Multiple Extender Modules; Polling Loop Supervision; Power Supply

38
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 3-17 and 3-18, to follow.
!
DO NOT use the 4197 Polling Loop Extender module with the VISTA-32FBPT.
Be sure to include the total current drawn on the polling loop when figuring the total auxiliary load on the panel’s
power supply.
CONTROL PANEL
INPUT POLLING LOOP
CLASS B, STYLE 3
EXTENSION POLLING LOOP
4297
PANEL
AUX
POWER
TO
OTHER
DEVICES
INPUT LOOP LIMITS:
EXTENSION POLLING LOOP LIMITS = SAME AS INPUT LOOP
• 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:
•
•
TOTAL LENGTH OF ALL WIRE RUNS
COMBINED CANNOT EXCEED 4000FT.
(2000FT. IF USING SHIELDED WIRE)
GAUGE LENGTH
#22 650 FT
#20 950 FT
#18 1500 FT
#16 2400 FT
• 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
polling_loop_003-V4
COMBINED INPUT AND EXTENSION LOOP LIMITS:
V-PLEX
DEVICE
V-PLEX
DEVICE
DO NOT CONNECT
Figure 3-17: Polling Loop Connections Using One 4297 Extender Module
INPUT POLLING LOOP
CONTROL PANEL
EXTENSION POLLING LOOP #1
4297
COMBINED INPUT AND EXTENSION LOOP LIMITS:
•
NO MORE THAN 119 DEVICES COMBINED ON THE INPUT LOOP AND EXTENSION LOOP #1. NO MORE THAN 119 DEVICES COMBINED
ON THE INPUT LOOP AND EXTENSION LOOP #2.
• TOTAL LENGTH OF ALL WIRE RUNS ON THE INPUT LOOP AND EXTENSION LOOP #1 COMBINED CANNOT EXCEED 6400 FT. (3200 FT.
IF USING UNSHIELDED WIRE IN CONDUIT, OR SHIELDED WIRE). TOTAL LENGTH OF ALL WIRE RUNS ON THE INPUT LOOP AND EX-
TENSION LOOP #2 COMBINED CANNOT EXCEED 6400 FT. (3200 FT. IF USING UNSHIELDED WIRE IN CONDUIT, OR SHIELDED WIRE).
• WHEN USING THE 4297 TO EXTEND THE POLLING LOOPS, FIRE DEVICES MUST BE ON SEPARATE LOOPS FROM BURG DEVICES TO
PR
OVIDE ISOLATION.
4297
•
DO NOT CONNECT 4297 MODULES IN
SERIES (i.e., DO NOT CONNECT ONE
MODULE'S EXTENSION LOOP TO
ANOTHER MODULE'S INPUT LOOP.)
polling_loop-013-V1
TO
BURG
DEVICES
TO
FIRE
DEVICES
EXTENSION POLLING LOOP #2
CLASS B, STYLE 3
CLASS B, STYLE 3
V-PLEX
DEVICE
V-PLEX
DEVICE
2 1
6
7
8
9
2 1
6
7
8
9

TO PANEL AUX POWER
TO PANEL AUX POWER
DO NOT CONNECT
Figure 3-18: Polling Loop Connections Using Multiple Extender Modules
NOTE: The input loop limits stated in Figure 3-17 apply to Figure 3-18 as well.