
— 2-WIRE POLLING
(Zones 10
GENERAL INFORMATION
To expand the system using a 2-wire polling loop
and remote point modules (RPMs), a 4171XT-XM
dialer board, and a 4152LMB loop module must tM
installed,as describedin the ZONE EXPANSION
MODULE section.
Wire each of the RPMs in parallel to the 2-wire
polling loop, making sure no more than the
maximum allowable wire length is used per
individual polling loop run, as follows:
#22 gauge @ 650’ max
#20 gauge @95Cr’max
#18 gauge @l 500’ max
#18 gauge @2400’ max
NOTE: Twisted pair recommended for ail normal
wire runs.
IMPORTANT:
The maximum combined polling
loop run is 4000’. If using shielded wire, the
maximum is 2000’. If longer wire runs are needed,
a 4197 Loop Extender Module must be used.
LOOP EXPANSION —
through 64)
CAUTION
If an intercom system is being used, the polling loop
wires must be as far from the intercom wiring as
possible (minimum 6-). If this spacing cannot be
achieved, shielded wire must be used. If this is not
done, interference on the intercom system might
occur. Also note that the maximum total wire
length supported is cut in half when shielded wire is
used.
ADVISORY
The maximum allowabte current draw on the polling
loop is 64mA. Refer to the Polling Loop Current
Draw Worksheet (found in the POWERING THE
SYSTEM section of this manual) for current draws
of various polling loop devices. If more than 64mA
is bdng drawn, use of the 4197 provides another
loop with 64mA available. Refer to the instructions
provided with the 4197, or the Technical Reference
Manual for complete information.
— WIRELESS EXPANSION—
The VISTA XM system supports up to 63 Alert Ill
IMPORTANT: All RF zones must be designated as
Transmitters, plus a wireless keypad. To expand
such in their respective program fields. If using a
the system using wireless, one or two 4280 RF
4280-8, only up to 8 zones can be enabfed as RF
Receivers (or 4280-8 if only 8 wireless zones are
zones. If more than 8 zones are enabled, the
used) must be connected to the polling loop. The
message “SET-UP ERROR” (5130XM/51 37) or “E~
4280 can receive signals from wireless
(41 30 XM/41 37) will be displayed. For more
transmitters within a nominal range of 200 feet. In
information regarding the 4260 installation, refer
addition, two 4280s can be used to provide either a
to the Installation Instructions provided with the
greater area of coverage, or to provide redundant
4280.
WIRELESS
protection. Note that if using 2 RF Receivers; one
PERIPHERALS
of them must be powered from Auxifiary power.
SMOKE
~DEW@
4220
DOOR
OR
42S0-6
RF
RECEIVER
.
4
VISTA
CONTROL
415P
.
T
LMeo
*
a
RPMDEVICES
POLLING LOOP
I
RPM
I
BASIC9 HARD-WIREDZONES
COMBINATIONCONFIGURATION
USINGMARDWIRE,2-WIREPOLLINGLOOP
ANDWIRELESSTECHNOLOGIES
-7-
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