ADEMCO Vista-20PCN Especificaciones descargar pdf (Pagina 12)

Hardwire Zones

Normally Open Zones

1. Connect open circuit devices in parallel across the

loop, with the EOLR connected across the loop wires

at the last device.

2. Enable normally open/EOLR zones using Zone

Programming mode, “Hardwire Type” prompt.

Normally Closed Zones

1. Connect closed circuit devices in series in the high (+)

side of the loop, with the EOLR connected in series

following the last device.

2. Enable normally closed/EOLR zones using Zone

Programming mode, “Hardwire Type” prompt.

Double-Balanced (V20P only):

Connections as shown

(resistors not provided).

IMPORTANT:

Double-balanced zones provide zone tamper

protection, and should be used as burglary zones only. Do not

use double-balanced zones as fire zones.

Zone Doubling (V20P only):

Connections as shown.

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

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 for EOLR only.

For UL commercial burglar alarm

installations, use normally closed zones.

Zone Doubling (VISTA-20P only):

This feature provides two hardwired zones for each

standard hardwired zone connected to the control’s

terminals (but does not increase the total number

of zones supported by the control). If enabled (Zone

Programming mode, “Hardwire Type” prompt,

option “3”), hardwire zones are automatically

paired as follows:

Zone Paired with zone

210

311

412

513

614

715

816

Note for Configurable Zone Types:

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

Smoke Detectors

2-Wire Smoke Detectors

1. Connect up to sixteen (10, if “clean me” option used)

2-wire smoke detectors across zone 1 terminals 8 (+)

and 9 (-) as shown in the Summary of Connections

diagram at the back this manual. Observe proper

polarity when connecting the detectors.

2. Connect EOL resistors across the loop wires at the

last detector.

4-Wire Smoke Detectors

3. Connect 4-wire smoke detectors to any zone from 2

and higher as shown below. This control does not

automatically reset power to 4-wire smoke detector

zones, so you must use a relay (4204, 4229, or

on-board trigger connected to separate relay) to reset

power. Do this by programming the designated

relay/trigger as zone type 54 (fire zone reset).

2000

OHMS

EOLR

HEAT

DETECTOR

RED

EOL

POWER

SUPERVISION

RELAY MODULE

A77-716B

VIOLET

AUX PWR

OUTPUT

TERMINALS

BLK

4wiresmk-001-V0

4-WIRE SMOKE

OR COMBUSTION

DETECTOR

TO ZONE TERM. ( )

RELAY

PROGRAM RELAY

AS ZONE TYPE 54

(FIRE ZONE RESET)

Figure 7. 4-Wire Smoke Detector Connections

Notes

•

Fire Verification (zone type 16):

The control

panel will “verify” any alarm by resetting the

smoke detectors after the first alarm trigger, and

then waiting 90 seconds for a second alarm

trigger. If the smoke detector or thermostat does

not trigger again, the control will disregard the

first trigger, and no alarm signal will occur. This

feature eliminates false alarms due to electrical

or physical transients.

• The zone 1 alarm current supports only one

smoke detector in the alarmed state.

• Do not use 4-wire smoke detectors on zone 1.

•

Clean Me Option:

If enabled (field *174 = 1;

*56 zone programming, response type prompt =

3), certain ESL smoke detectors

†

send “clean me”

reports as appropriate. If used, the maximum

number of detectors is reduced to 10 (not

standard 16).

† Refer to the ESL documentation included with

the smoke detector for information regarding

compatibility with the clean-me option.

Installation Instructions

2-6

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 87 88

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ADEMCO Vista-20PCN Especificaciones Pagina 12

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