Hochiki CHQ-ISM/DIN User Manual download pdf (Page 2)

Hochiki Europe (UK) Limited 2-3-0-1469/ISS1/SEPT13

Connection Details

The CHQ-ISM should be connected as shown in Fig 1 or Fig 2 below, the I.S. device can be either a sounder

or beacon. See Table 3 which shows which I.S. devices have been tested for compatibility with the different

barrier types. Table 3 also shows whether an EOL device is required for compatibility; if required this should

always be placed at the furthest end of the cable, preferably in the terminals of the I.S. device.

NOTE: The CHQ-ISM should always be installed in the safe area along with the barrier.

SAFE AREA

EOL

CHQ-DSC or

Sounder Circuit

CH1

Barrier

24V

PSU

CHQ-ISM

+ -

HAZARDOUS AREA

SNDR

CCT1

SNDR

EOL1

SNDR

CCT2

SNDR

EOL2

EOL

CH2

BARRIER 1

BARRIER 2

24V IN

24V OUT

device

Refer to instructions to see if EOL is

required to be fitted.

24V IN

Input

EOL

Fig 1

SAFE AREA

EOL

Panel Sounder

Circuits

CH1

Barrier

To other

Equipment

CHQ-ISM

SNDR

CCT1

SNDR

EOL1

SNDR

CCT2

SNDR

EOL2

EOL

CH2

BARRIER 1

BARRIER 2

24V

OUT

24V IN

device

Refer to instructions to see if EOL is

required to be fitted.

24V

AUX

Input

EOL

Fig 2

1 2 3 4

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Hochiki CHQ-ISM/DIN User Manual Page 2

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