Loop Interface
• Intelligent analogue loop technology
• Several loop protocols for the
detector brands System Sensor,
Apollo and Labor Strauss
• Up to 318 elements on the loop
• Integrated measurement of loop
resistance, loop current and quality
of transmission
• Maximum loop current 500mA
Description
By means of the Loop Interface LIF128-1, one ADM loop By means of an integrated measuring and analysis func-
with bi-directional data exchange can be connected to tion, electrical characteristics on the loop can be obtai-
Fire Detection Control Panels Series BC216. The loop ned and faults in the loop communication can be evalu-
protocol can be parameterised on the control panel, ated. In the course of commissioning or maintenance,
which makes the use of different brands of detectors this function allows the evaluation of the transmission
possible.
quality on the loop as well as the detection of external
voltages, poor wiring, or of exceeding line resistances.
For this,
Up to
• 318 elements with System Sensor/200 protocol
• the resistance of both loop lines,
– 159 detectors and 159 modules – or
• 126 elements with Apollo/Discovery protocol or
• 240 elements with Labor Strauss/700 protocol
can be connected to a single ADM loop.
• the loop current,
• the loop voltage at both terminals, as well as
• the number of faulty queries on the loop
can be indicated on the Fire Detection Control Panel
Thanks to the high maximum output current of 500mA, Series BC216 since firmware version Vx.22.
a larger number of loop elements with higher current
demand – such as loop sounders – can also be used On the control panel, you can perform a maintenance
on the ADM loop.
prognosis for each connected smoke detector. The
continuous monitoring of the detector function allows
Each ADM loop can be subdivided into a maximum of trouble-free operation and timely recognition of detec-
144 detector zones. The function of the detector zone tor contamination.
– for example, manual call point zone, automatic fire de-
tector zone, technical message or fault detection zone The loop interface is equipped with a processor of its
– as well as the element types of the loop elements can own. At a possible central processing board failure, the
be parameterised on the fire detection control panel.
diversified redundancy concept thus ensures reliable
alarm recognition.
The two loop connections of the loop interface – which The firmware of the loop interface can be updated via
correspond to start and end of the loop – are equipped an integrated USB interface.
with an isolator each. In the event of a short circuit, the
isolator interrupts the loop, thus maintaining the opera-
tional reliability of those parts of the loop that are not
affected by the short circuit.
Building Safety. Building Security.
A
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