214037 – Loop Interface LIF128-1

The Loop Interface LIF128-1 supports one ADM loop with bi-directional communication in Fire Detection Control Panels Series BC216. The protocol for the loop communication is set through the parameterization of the control panel and it determines the maximum number of detectors and modules that can be connected to the loop

240 physical address points (detectors or modules) with Labor Strauss/700 protocol

318 physical address points (159 detectors and 159 modules) with System Sensor/200 protocol

126 physical address points (detectors or modules) with Apollo/Discovery protocol

Each ADM loop can be divided into a maximum of 144 detector zones. Thanks to the high maximum output current of 500mA, a large number of loop elements with higher current demand – such as sirens – can be used on the ADM loop

Extensive measuring functions for obtaining electrical characteristics, as well as analysis functions are integrated into the loop interface. On the LC display of the Fire Detection Control Panel Series BC216, the resistances of the positive and negative loop line, the present loop current, the loop voltage at all terminals and the number of faulty queries on the loop can be indicated. With that, the quality of the loop cabling and of the data transfer can be evaluated in the course of commissioning or maintenance. In this way, for example, lines that are too long or poor wiring can be detected easily

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Connection of manual call points, automatic detectors, conventional zone modules, control modules, monitor modules, RF gateways and signalling devices in ADM technology

Usually, the wiring of the ADM loop is realised as ring with unshielded 2-wire cables; if necessary, branch lines can also be connected to the ring

Full function of all elements in the event of a single wire breakage on the ring-shaped ADM loop line

On the componentry, the start and the end of the ADM loop are each provided with an isolator module

In the event of a short circuit on the loop line, only the loop elements in the faulty line section, that is cut off from the loop by means of isolators, are affected in its function

Independent CMOS processor to ensure the alarming capability even at system failure of the control panel

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