ADEMCO VISTA-20HWse Guía para resolver problemas descargar pdf (Pagina 13)

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Section 3. INSTALLING REMOTE KEYPADS

This section lists the wired keypads that may be used and provides instructions

for wiring and mounting the keypads.

A preliminary check-out procedure is also provided to ensure that the connected

keypads are functioning properly in the system.

Keypads That May Be Used

• Fixed-Word Display: 4137AD, 4127, 6127, 6128, 6137

• Alpha Display: 5137AD, 6138, 6139

• Up to 4 keypads in each partition (total of 8 in the system), independent of

auxiliary power considerations (you may need to use an auxiliary power

supply if the 600mA aux. output is exceeded)

If you are going to use a 4285 Phone Module, you MUST use addressable

keypads (4137AD, 5137AD, 6128, 6137, 6138, 6139) in the system, but set to

the non-addressable mode (address 31).

Wiring To The Keypads

1. Determine wire gauge by referring to the wiring length/gauge chart below.

Wire lengths/gauge for Partition 2 keypads should be determined separately

from those keypads connected to Partition 1.

For devices (Keypads, Zone Expander, etc.) connected to a single 4-wire

run, determine the current drawn by all units connected to the single wire run,

then refer to the Wiring Run chart to determine the maximum wire length that

can be safely used for each wire size. Current draw for all devices can be

found in the SPECIFICATIONS AND ACCESSORIES section.

Note: Refer to “Auxiliary Device Current Draw Worksheet” in the

FINAL

POWER UP

section for current draw for all keypads.

Maximum wire lengths for any device that is homerun to the control can also be

determined from the chart, based on the current draw of that device alone.

Wiring Run Chart For Devices* Drawing Aux Power From

The Control (12V+ & 12VÐ)

TOTAL CURRENT DRAWN BY ALL DEVICES CONNECTED TO A SINGLE WIRE RUN

Wire Size 50 mA or less 100 mA 300 mA 500 mA 600 mA

#22 500 ft (152m) 250 ft (76m) 80 ft (24m) 50 ft (15m) 42 ft (13m)

#20 750 ft (228.6m) 380 ft (116m) 130 ft (39.6m) 80 ft (24m) 67 ft (20.4m)

#18 1300 ft (396m) 650 ft (198m) 220 ft (67m) 130 ft (39.6m) 115 ft (35m)

#16 1500 ft (457m) 1000 ft (305m) 330 ft (100.5m) 200 ft (70m) 170 ft (52m)

* Includes Keypads, Zone Expander/Relay Units, or 4285 Phone Module.

The length of all wire runs for both partitions combined must not exceed 1500

feet (457m) when unshielded quad conductor cable is used (750 feet if shielded

cable is used). This restriction is due to the capacitive effect on the data lines

when quad cable is used.

2. Run field wiring from the control to the keypads (using standard 4-conductor

twisted wire cable using the wire gauge determined in step 1).

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ADEMCO VISTA-20HWse Guía para resolver problemas Pagina 13

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