Creating A Detector Chain; Detector Id Switches - CGS Merlin GDP2X Manuel D'installation Et D'utilisation

Installation & Operation Manual

Creating a Detector Chain

Create a detector chain by connecting detectors in a parallel (daisy chain) method.
Any other way may cause issues or damage to the overall system. Resistor switches should be turned on at each end
of a chain – see section '120-ohm Termination Resistance'.
Single Detector Chain from
Control Panel example.
Split Detector Chain from Control Panel example.
Reversing the [D+] and [D-] connections of any device can lead to the whole system to stop working owing to reverse
polarity found on the terminals. In order to avoid this problem, it is recommended that a cable of same colour should
be used to connect all [D+] terminals together and similarly cable of same colour to be used to connect all [D-]
terminals together.
The detector must be earthed/grounded for electrical safety and limit the effects of R/F & EMC interference!
Where cable runs may exceed 100 yards from one control panel – Contact your supplier!
Ensure the 120-ohm termination resistance switch is turned on at each end of a cable run!

Detector ID Switches

When wiring multiple detectors it is important to identify each detector installed for
the control panel to receive and display accurate data corresponding with the
correct device.
The ID configuration diagram is printed onto detector boards for quick
reference as shown opposite. All detectors are factory set to ID1.
We recommend a plan, map and/or marking the detector enclosures detailing ID and location!
ID Switches must be configured for each detector connected to receive and display accurate data!
IOM Iss: 2 03-22
Merlin GDP2X
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