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4297
Note: See the Installation & Setup Guide for the control panel being used for specific power and wiring requirements.
Figure 2. Typical Supplementary Power Supply Connections
CONTROL PANEL
• DO NOT CONNECT 4297 MODULES IN SERIES
(i.e., DO NOT CONNECT ONE MODULE'S EXTENSION
LOOP TO ANOTHER MODULE'S INPUT LOOP.)
•
DO NOT CONNECT MORE THAN EIGHT
4297 MODULES IN PARALLEL.
CONTROL PANEL
Figure 4. Typical Connections Using Multiple 4297 Modules
CONFIGURATION GUIDELINES
These guidelines apply to control panels that support V-Plex polling loop devices. Some of these control panels
may have additional limitations; refer to the control panel's Installation & Setup Guide for specific power and
wiring requirements.
Maximum number of devices:
• All input loops (combined) = 64 devices max.
• All input loops (combined) plus 1 output loop = 119 devices max.
Maximum wire length limits:
Refer to Table 1 (at right) for wire length per gauge,
and observe the maximum wire length limits.
• No individual wire run can exceed 2400 ft. max.
• 1 input loop plus 1 output loop (combined) = 4000 ft. max
• All input loops (combined) plus 1 output loop = 6400 ft. max
Note: Reduce wire length by ½ if using unshielded
wire in conduit, or if using shielded wire.
Maximum Current:
• All input loops (combined) = 128mA maximum current limit.
• Each output loop = 128mA
• Any single wire run = 64mA
INPUT POLLING LOOP (FROM CONTROL).
9
WHEN USING SUPPLEMENTARY POWER, ON
8
COMMERCIAL FIRE PANELS, DO NOT CONNECT
THE INPUT POLLING LOOP GROUND ON TERMINAL 7.
7
6
5
NO CONNECTION
4
3
2
1
+12VDC
POWER
INPUT POLLING LOOP
V-PLEX
V-PLEX
DEVICE
DEVICE
Figure 3. Connections Using One 4297 Module
INPUT POLLING LOOP
WIRE RUN LENGTH
MUST NOT EXCEED:
GAUGE
LENGTH
#22
100 FT
#20
150 FT
#18
225 FT
#16
375 FT
CURRENT DRAW:
• 50 mA + EXTENSION LOOP DRAW
DURING ACTUAL OPERATION.
• INCREASES TO 400 mA WHEN
EXTENTION LOOP SHORTENED
EXTENSION POLLING LOOP
V-PLEX
4297
DEVICE
4297
4297
Wire Gauge
#22
#20
#18
#16
- 2 -
NOTE
USE A CLASS II (POWER LIMITED) POWER
SUPPLY WHICH IS UL LISTED FOR THE
DESIRED FIRE AND/OR BURGLARY
APPLICATION. FOLLOW THE POWER SUPPLY'S
INSTRUCTIONS REGARDING BACKUP
BATTERY AND AC/BATTERY SUPERVISION
SIGNAL CONNECTIONS THAT APPLY TO THE
DESIRED APPLICATION.
TAKE CARE TO OBSERVE
POWER SUPPLY RATINGS.
–
SUPPLEMENTARY
POWER SUPPLY
+
USE CONTROL PANEL'S
AUXILIARY POWER OR USE
A SEPARATE POWER SUPPLY
4297-001-V0
TO
V-PLEX
OTHER
DEVICE
RPMS
polling_loop_005-V0
EXTENSION POLLING LOOP #1
V-PLEX
DEVICE
EXTENSION POLLING LOOP #2
V-PLEX
DEVICE
polling_loop-006-V1
Table 1
Wire Length
650 ft.
950 ft.
1500 ft.
2400 ft.
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