ADEMCO Accord Specifications download pdf (Page 15)

Connecting the External Sounders

Connections for Self Actuating Bells and Bell/Siren combinations should be made as

outlined in Table 2.2 Connections for SABs and Table 2.3 Connections for Bell/Siren

Only.

Connecting Power to the System

Mains Power

Mains power for the system is 230 V a.c. 50 Hz (a 24-hour unswitched source). The

three-core mains cable should be brought into the control cabinet through the mains

entry point under the mains terminal block. The mains cable should be wired to the

three-way mains input terminal block. The secondary of the mains transformer should

be connected to the two terminals on the control panel PCB marked AC. No connec-

tion should be made to the GND terminal on the Accord PCB.

Note: Do not apply power to the transformer at this point.

Stand-by Battery

The system can be protected against mains failure by the addition of a Stand-by

battery; a maximum rating of 7.2 Ahr should be used.

Calculate the system quiescent current draw and multiply this by the number of hours

you require for stand-by cover, for example, 200 mA × 12 hours = 2.4 Ahr. Install the next

battery size up, in this case 2.8 Ahr.

Table 2.2 Connections for SABs. Table 2.3 Connections for Bell/Siren only.

snoitcennoC

BASrof

lenaPlleB

+LLEBffOdloH/ylppuSevitisoP

LLEB– evitageNlangiS/pirT

PMATLLEB– ffO–dloH/ylppuSevitageN

LLEBR–PMATnruteRrepmaTevitageN

BRTSlangiSevitageNebortS

rofnoitcennoC

ylnoneriS/lleB

lenaPlleB

+LLEBevitisoPebortS&lleB

-LLEBevitageNlleB

-PMATLLEBnommoCWSrepmaT

LLEBPMATR-C/NWSrepmaT

BRTSevitageNebortS

Zone Type Definitions

General Information

The Accord has eight zone types, these are:

0 = Not Used

1 = Final Exit (FX)

2 = Keyswitch

3 = Intruder (Alarm)

4 = Walk Through (IX)

5 = 24 Hour Tamper

7 = PA Audible

9 = Fire

1 Final Exit

The Final Exit zone type is used for the entry/exit route(s), they are usually assigned

to the front door or other main entry point(s). The zone becomes operational when the

system is set or setting.

For a Final Exit zone type to terminate a Full Setting procedure the Exit Time must be

set to infinite (410).

Activation of a Final Exit zone while the system is set initiates the unsetting proce-

dure; the keypads beep and all Walk Through zones are isolated. A valid User Code

must be entered at the keypad, or a Keyswitch zone activated, before the Entry Time

has elapsed.

If the system is Part Set or Night Set then the Exit Time is fixed at 30 seconds.

2  Keyswitch

The Keyswitch zone type is used to allow a keyswitch to Full Set the system. It has a

latching operation.

The keyswitch should be wired across the zone terminals; opening the Keyswitch

zone (open circuit) will start the Full setting procedure; closing the Keyswitch zone

(closed circuit) performs an instant unsetting of the system.

It is strongly recommended that the keyswitch should be fitted in a tamper protected

case with the tamper switch connected in series with the other tamper circuits at the

control panel.

3  Intruder

The Intruder zone type is used on devices which require an instant alarm if activated

when the system is Set. During the Set state zone activations cause internal sounders

and external sounders to activate.

4  Walk Through

The Walk Through zone type is used with the Final Exit zone type; when the system

is set and a Final Exit zone is activated the unsetting procedure is initiated and all

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ADEMCO Accord Specifications Page 15

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