–32–
Maximum Polling Loop Wire Runs
Wire Gauge
Max. Length
#22 gauge
650 feet
#20 gauge
950 feet
#18 gauge
1500 feet
#16 gauge
2400 feet
When running polling loop wires, they must not be run within 6" of A.C. power,
telephone, or intercom wiring. Since the polling loop is carrying data between the
control panel and the devices, interference on this loop can cause an interruption
of this communication. The polling loop can also cause outgoing interference on
the intercom or phone lines. If this spacing cannot be achieved, shielded wire
must be used. (Note that the maximum total wire length supported is cut in half
when shielded wire is used.)
2.
Wire each device to the polling loop, making sure to use correct polarity
when making connections (refer to the device's instructions). If using serial
number devices, and you intend to have the control learn the each
serial number automatically, wire no more than 25 of these devices to
the control at a time. Then power up and program them (as described later
in this section) before connecting the next 25. Leave previously learned
devices connected.
If you intend to manually enter the serial numbers through the keypad or
through V-Link downloading software, all the devices may be connected
before powering up to program.
3.
Note the polling loop devices that have DIP switches on them. Set each
device's DIP switches for the zone number you are assigning it. Refer to the
device's instructions or the DIP Switch Tables found at the end of this
manual when setting addresses.
Certain polling loop devices, such as the 4139SN and 4191SN, do not have
DIP switches. Instead, they have embedded serial numbers which must be
"learned" by the control during #93 Menu Mode Zone Programming.
Certain polling loop devices have a DIP switch which can be used either to select
the device's zone number or to select the learning of a unique, embedded serial
number by the control panel. When used with Vista-100, these devices must be
set for the serial number mode of operation.
+
-
VISTA-100
2 WIRE RUNS SHOWN IN
A STAR CONFIGURATION
BUILT-IN POLLING LOOP
RPM
RPM
RPM
RPM
BASIC POLLING LOOP CONNECTIONS
Figure 9. Polling Loop Connections
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 10a and 10b, to follow.
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Содержание VISTA-100
Страница 197: ... 187 Insert DIP Switch Table Board A www PDF Zoo com firealarmresources com ...
Страница 198: ... 188 Insert DIP Switch Table Board B www PDF Zoo com firealarmresources com ...
Страница 199: ... 189 Insert DIP Switch Table Board C www PDF Zoo com firealarmresources com ...
Страница 206: ... 196 NOTES www PDF Zoo com firealarmresources com ...