ADEMCO Symphony 8142 Setup Guide download pdf (Page 14)

Installation and Setup Guide

2-8

Basic Wired Zones

Normally Open Zones/Normally Open EOLR

Zones

1. Connect open circuit devices in parallel across

the loop; for EOLR zones, connect the EOLR

across the loop wires at the last device.

2. Enable normally open/EOLR zones using

Zone Programming mode, “Hardwire Type”

prompt.

Normally Closed Zones/Normally Closed EOLR

Zones

1. Connect closed circuit devices in series in the

high (+) side of the loop; for EOLR zones,

connect the EOLR in series following the last

device.

2. Enable normally closed/EOLR zones using

Zone Programming mode, “Hardwire Type”

prompt..

Double-Balanced: Connections as shown

(resistors provided for one device in selected

models); maximum of 8 sensors on each double-

balanced zone.

IMPORTANT: Double-balanced zones provide

unique tamper signaling on the same 2 wires used

for alarm signaling, and should be used as

burglary or emergency zones only. Do not use

double-balanced zones as fire zones.

Zone Doubling: Connections as shown (resistors

provided).

ZONE 3

ZONE 4

12 13

zone-002-V0

TAMPER

CONTACTS

TAMPER

CONTACTS

10 11

6.2k

ZONE 10

ZONE 2

zone-004-V0

Double Balanced Zones Zone Doubling

Figure 5. Configuring Zones

Notes

• EOLR: If the EOLR is not at the end of the

loop, the zone is not properly supervised and

the system may not respond to an “open” on

the zone.

• Zone 1 is intended only for EOLR usage.

Zone Doubling:

This feature provides two unique zone

identifications for normally closed sensors

connected to each basic wired zone (but does not

increase the total number of zones supported by

the control). Do not use zone doubling for fire

zones. If enabled (Zone Programming mode,

“Hardwire Type” prompt, option “3”), basic

wired zones are automatically paired as follows:

Zone Paired with

zone

1 9

2 10

3 11

4 12

5 13

6 14

NOTE: A short across the EOL (i.e., at

terminal) on either zone of a zone-doubled pair

or on a double-balanced zone causes a tamper

condition (displayed at keypad as CHECK).

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 111 112

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ADEMCO Symphony 8142 Setup Guide Page 14

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