ADEMCO 4278EX-SN 설치 지침 - 페이지 2

{카테고리_이름} ADEMCO 4278EX-SN에 대한 설치 지침을 온라인으로 검색하거나 PDF를 다운로드하세요. ADEMCO 4278EX-SN 4 페이지. Passive infrared motion detector

페이지 인쇄

MOUNTING SURFACE

HOOKS (2)

WIRE ENTRY AREA

SEE DETAIL "A"

SLOTS (4)

ENGAGE SLOTS

ONTO HOOKS

AND SLIDE

HOUSING BASE

DOWN FIRMLY

WALL

PLATE

EARS (4) FOR

CORNER

MOUNTING

(MAY BE

BROKEN OFF

IF MOUNTED

ON FLAT WALL)

HOOKS (2)

Diagram 5:

MOUNTING DETAILS

D. Coverage Adjustment

The PIR is equipped with a moveable mirror carrier which allows adjustment of

the coverage pattern in the horizontal direction after the unit is mounted (See

Diag. 4). Although it can be used in conjunction with either mirror, its feature is

particularly useful when using the Long Range/Curtain Mirror, because it can

compensate for mounting on an uneven wall, and assist in accurately aiming

down long corridors through doorways, and around obstructions. Adjustment is

accomplished by depressing one of the rectangular plastic ears at the lower left

and right sides of the mirror holder. This pivots the mirror assembly to the left

or right up to 5¡.

E. Ceiling Mounting

The versatility of the PIR permits optional ceiling mounting as an alternative to

the wall mounted configurations described herein. Mounting the unit on the

ceiling, using the Long Range Curtain Mirror, can provide a 15 to 18 ft. (4.6m to

5.5m) forward-looking ÒcurtainÓ pattern as illustrated in Diagram 6.

CEILING

10'

CEILING

12'

HEIGHT

(3m)

(3.6m)

FLOOR

Diagram 6: CEILING MOUNTED UNIT USING LONG RANGE

("CURTAIN") MIRROR

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MPORTANT: When hallway pattern masking is used, be sure the PIR is

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set for Instant Response Mode. Failure to do so results in allowing an

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intruder to go undetected.

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NOTE: If the hallway is less than 10 feet (3m) wide, the full 40 feet (12m) cov-

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erage will not be obtained, but will be slightly reduced. To minimize this effect,

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the mirror can be aimed left or right as described in the ÒCoverage

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AdjustmentÓ section of this document.

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F. Inverted Mounting

If small pets have access to the area protected by the detector, this section

pertains.

Mount the detector and wall plate inverted (the PIR window at the top) with the

wall plate tilted forward (downward). Four self-adhesive rubber spacers have

been provided to aid in tilting the wall plate.

Note that while this procedure adjusts the PIR zones so that small animals will

not be detected, a crawling intruder will also go undetected.

The spacers are to be used with the wall plate only when the wide angle mir-

ror is in use.

Mounting flat on a wall

Stack two spacers between the wall and each of the two mounting bosses on

the rear of the wall plate at the end opposite to the wiring entry.

Corner mounting

1. Affix one of the spacers to the rear surface of each of the two corner mount

tabs on the wall plate, on the end opposite to the wire entry access cutout.

2. Follow the ÒNormal MountingÓ steps 2, 3 and 4 described previously, but ori-

ent the wall plate so that the wire entry access cutout in the wall plate is

positioned at the bottom.

HOUSING

BASE

(COVER

REMOVED)

CIRCUIT

BOARD

MOUNTING

TABS (2)

FOR CONCEALED

FOR CONCEALED WIRING,

WIRING, CUT A 5 /16 (8mm)

CUT A 5/16Ó (8mm) DIAMETER

DIAMETER (MAX) WIRING

(MAX) WIRING HOLE IN

HOLE IN MOUNTING

MOUNTING SURFACE. CENTER

SURFACE. CENTER OF

OF HOLE MUST BE ON LINE

CIRCUIT

HOLE MUST BE ON LINE

CIRCUIT

WITH TOP EDGE OF WALL

BOARD

WITH TOP EDGE OF WALL

BOARD

PLATE.

SUPPORT

PLATE.

SUPPORT

POSTS (2)

INTERLOCKING TAB ENTERS CUTOUT

IN BASE-LOCKS BASE TO PLATE

C L

DETAIL A

HOLES (3) FOR MOUNTING

HOLE (3) FOR MOUNTING

THE PLATE TO WALL.

THE PLATE TO WALL

TOP

VIEW

(1.2m)

[at 12 ft.

(3.6m)

ceiling

height]

18'

(5.5m)

Mount unit so that

PIR window is towards

detection area.

SIDE

VIEW

10'

15'

20'

(3m)

(4.6m)

(6m)

3. When the detector is mounted in an inverted position, those portions of the

detector mirror which normally provide downward beams of protection will

now provide beams that point upward. This will apply to both mirrors (long

range and wide angle). If possible, install the detector so that these now

upward-pointing beams are not directed at ceiling areas that include heat-

ing or air conditioning ducts and vents or light fixtures. If these PIR sources

cannot be avoided, the upward-pointing segment of the mirror should be

masked to avoid the possibility of false alarms. See the section on ÒMirror

MaskingÓ

G. Mirror Masking

The masking strips that have been supplied and are designed for application

to one or more mirror segments to produce a protection pattern that suits the

particular requirements of the protected area. Simply peel off the appropriate

pressure-sensitive adhesive strip(s) and apply over the desired mirror seg-

ment(s). Individual masking strips have been provided for each of the mirror

segments on the wide-angle mirror. Two strips are provided for masking multi-

ple segments of the long range (curtain) mirror. Each mirror segment that is

masked results in the elimination of one zone of protection from the coverage

pattern. By masking appropriate segments of a mirror, you can adjust the cov-

erage to suit the area to be protected, or to eliminate coverage from areas

where you anticipate environmental disturbances that might reduce the PIRÕs

stability (a heater or other heat-producing object, for example).

WIRING CONNECTIONS

Bring all wires in through the PIRÕs wiring entry near the terminal block and

make connections as indicated in Diagram 7.

1. Polling loop (+) and (–) terminals: Connect these terminals to the system

polling loop. Observe polarity.

2. External sensor terminals: Connect these terminals in a series loop to

external N.C. sensors that can be assigned to any zone response provided

by the system, independent of the zone response used by the PIR. For UL

installations, wire run must be 3 ft. or less..

Refer to the Installation Instructions for the control panel regard-

ing the polling loop, ID numbers, and enabling of tamper detec-

tion (a pre-connected tamper switch is activated by removal of

the unitÕs cover).

INSTANT

WALK TEST

Diagram 7: WIRING CONNECTIONS

TAMPER SWITCH

Removal of the cover causes a tamper switch to open. The panel is

automatically notified via the polling loop when this event occurs.

SIGNAL PROCESSING

With the Mode Select Switch in the NORMAL position (see Diag. 7), the

signal processing circuitry of the PIR provides maximum immunity against

unwanted alarms caused by environmental disturbances, external electrical

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sources, heaters, etc. The detector signal an alarm within 3 to 4 steps, since

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the processing logic requires more complex motion than just a momentary

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event. When the detector verifies an intrusion, it signals the control and lights

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the LED (unless disabled).

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With the Mode Select Switch in the INSTANT response position, the delay

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involved in signal processing is eliminated. An instant alarm response (and

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lighting of the LED unless disabled) is provided when an intruder enters any

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single protective zone. Use instant response mode when the long range mirror

is installed, or where the detector is used to protect narrow corridors, or where

single protective zones are directed through doorways or room openings

SERIAL No. ID

This unit does not utilize DIP switches to set its zone number (ID).

Each unit has a unique factory-assigned serial number which must be

ÒlearnedÓ by the control panel during the zone programming

procedure. Therefore, this PIR can be used only with a control that supports

serial number devices.

Note that this PIRÕs unique factory-assigned serial number can be found on the

bar code label on the left-hand corner of the PC board (see Fig. 4).

The PIRÕs serial number can be entered by one of the following methods:

1. Downloading (Zone Definition screen of V-Link software). Recommended for

large installations and installations where foot traffic cannot be

controlled.

2. Entered in manually at the "learn" prompt during manual zone programming

(see Important note below).

3. "Learned" by faulting the detector twice while at the "learn" prompt during

manual zone programming.

- 2 -

POLLING

LOOP

NORMAL

DISABLE

SWITCH #1 = MODE SELECT SWITCH

SWITCH #2 = WALK TEST SWITCH

RIGHT

LOOP

EXTERNAL

SENSOR