ECP Devices - Rules of Wiring and Addressing Vista-128/Vista-250

-
1

-
Tech Notes
ECP DEVICES
- RULES OF WIRING AND ADDRESSING

VISTA-128/VISTA-
250
Peripherals Devices-
Supports up to 31 addressable devices (00-
30), keypads, RF receivers, relay
modules, etc. All devices can be programmed to be Supervised (Zone 8XX)

*You may need to use an auxiliary power supply if the 750mA aux. output is exceeded. Be sure to connect
the negative (
-) terminal on the power supply unit to negative terminal (
-) on the control.
*KEYPADS
-
Wire keypads to a single wire run or connect multiple keypads to a
wire run.
Alpha Keypad
Wire Run Length/Gauge Table

Wire Gauge
Length

#22 gauge
450 feet

#20 gauge
700 feet

#18 gauge
1100 feet

#16 gauge
1750 feet

These limits can be exceeded, but sluggishness or lack of response may result.
TouchScreen
Keypad
Wire Run Length/Gauge Table
Wire Gauge
Length
#22 gauge
150 feet

#20 gauge
240 feet

#18 gauge
350 feet

#16 gauge
550 feet

Determine wire gauge by referring
to the Wire Run Length/Gauge table. The maximum wire run length from
the control to a keypad, which is homerun back to the control, must not exceed the lengths listed in the
table. If more than one keypad is wired to one run, then the above maximum lengths must be divided by
the number of keypads on the run (e.g., the maximum length is 225 feet if two Alpha keypads are wired on
a #22 gauge run).
The length of all ECP
wire runs combined, regardless of the wire gauge, must not
exceed 2000 feet
when unshielded quad conductor cable is used (1000 feet if unshielded cable is run in
conduit, which acts a shield, or if shielded cable is used).
Set each keypad for an individual address (00
-
30) according to the keypad's instructions.
*5881/5883 RF RECEIVERS
- Home Ru
n these receivers directly to the panel.
USE MAX. of 220 ft. of #22 (0.64mm) WIRE or 550 ft. of #18 (1mm) WIRE FOR EACH RUN.

Set the DIP switches in the receiver for the address (01
-07). Make sure the address setting is not being
used by another device (keypad, relay module, etc.).

No more than two receivers can be installed. Each receiver must be set to a different device address, the
House IDs MUST be the same. The receiver set to the lower address is considered the
1ST
RF receiver for
supervisory purpos
es.
-
2

-
Tech Notes
*4204/
4204CF RELAY BOARDS
- Home Run each module directly to the panel.
The table below shows the maximum wire run lengths.
Wire Gauge
Maximum Length

#22
125 feet

#20
200 feet

#18
300 feet

#16
500 feet

*Other ECP devices
- other devices such as LRR, FSA, or 4286 have no documented wire limits. We
suggest following
Alpha
keypad wire limits for these devices and Home Run these whenever possible.