LST LIF128-1 User manual

© LABOR STRAUSS SICHERUNGSANLAGENBAU GMBH • A-1231 WIEN • WIEGELESTRASSE 36 • TEL [phone] • FAX [phone]
[email protected] • WWW.LST.AT • ALL RIGHTS RESERVED
LIF128-1_DBL_LST_EN_0915.PDF • PAGE 1
ABuilding Safety. Building Security.
Loop Interface
LIF128-1
Description
By means of the Loop Interface LIF128-1, one ADM loop
with bi-directional data exchange can be connected to
Fire Detection Control Panels Series BC216. The loop
protocol can be parameterised on the control panel,
which makes the use of different brands of detectors
possible.
Up to
• 318 elements with System Sensor/200 protocol
– 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.
Thanks to the high maximum output current of 500mA,
a larger number of loop elements with higher current
demand – such as loop sounders – can also be used
on the ADM loop.
Each ADM loop can be subdivided into a maximum of
144 detector zones. The function of the detector zone
– for example, manual call point zone, automatic fi re de-
tector zone, technical message or fault detection zone
– as well as the element types of the loop elements can
be parameterised on the fi re detection control panel.
The two loop connections of the loop interface – which
correspond to start and end of the loop – are equipped
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.
By means of an integrated measuring and analysis func-
tion, electrical characteristics on the loop can be obtai-
ned and faults in the loop communication can be evalu-
ated. In the course of commissioning or maintenance,
this function allows the evaluation of the transmission
quality on the loop as well as the detection of external
voltages, poor wiring, or of exceeding line resistances.
For this,
• the resistance of both loop lines,
• 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
Series BC216 since fi rmware version Vx.22.
On the control panel, you can perform a maintenance
prognosis for each connected smoke detector. The
continuous monitoring of the detector function allows
trouble-free operation and timely recognition of detec-
tor contamination.
The loop interface is equipped with a processor of its
own. At a possible central processing board failure, the
diversifi ed redundancy concept thus ensures reliable
alarm recognition.
The fi rmware of the loop interface can be updated via
an integrated USB 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

© LABOR STRAUSS SICHERUNGSANLAGENBAU GMBH • A-1231 WIEN • WIEGELESTRASSE 36 • TEL [phone] • FAX [phone]
[email protected] • WWW.LST.AT • ALL RIGHTS RESERVED
LIF128-1_DBL_LST_EN_0915.PDF • PAGE 2
ABuilding Safety. Building Security.
Specifi cations
Current consumption at 24V (without detectors/modules) typ. 25mA
Number of detector zones max. 144
Number of detectors/modules
System Sensor/200 protocol max. 318 elements (159 detectors + 159 modules)
Apollo/Discovery protocol max. 126 elements
Labor Strauss/700 protocol max. 240 elements
Idle loop current typ. 300µA per detector/module
Total loop current max. 500mA (at reduced line resistance)
Idle loop voltage
System Sensor/200 protocol typ. 29V
Apollo/Discovery protocol typ. 26V
Labor Strauss/700 protocol typ. 29V
Loop line resistance max. 50Ω per core
Ambient temperature -5°C to +50°C
Dimensions L × W × H 132 × 74 × 23 (mm)
Weight 80g
Order number 214037
Order name Loop Interface LIF128-1
Usually, the loop wiring is realised as ring. Thanks to the
ring-shaped wiring, all elements on the loop keep wor-
king in the event of a single wire breakage. If necessary,
branch lines can also be connected to the ring.
In the event of a short circuit, the functioning of the loop
elements that are cut off from the faulty loop segment
by means of isolators, can be maintained. The control
panel indicates a wire breakage or a short circuit as
loop fault.
Unshielded wires can be used for the fi re detector ca-
bling and, therefore, existing installations can be adop-
ted very easily and existing cabling can be reused.