TECHNICAL MANUAL - 1IASBOX
1. GENERAL
1IASBOX module has been designed for advanced fire detection systems managed by FX/50, FX/20 and FX/10
control panels (and other compatible) equipped with loop operating with AS protocol; it is equipped with 1 balanced/
non-balanced programmable input.
The module can be connected to devices or traditional fire detectors with NO relay output contacts (free from po-
tential).
The digital transmission of the alarm event is triggered when the module receives an alarm, that is, when the de-
tector contact closes. The alarm condition is kept until the contacts go back to NO status. When the contact closes,
a 18KOhm resistance will be connected in parallel to the 47KOhm line balancing resistance; open line or short-cir-
cuited status will be detected as fault condition by the module. The alarm condition can be signalled next to the de-
tector by connecting a low-consumption LED diode (as specified below) to the terminal output. Module input can be
set to "non-balanced" by using the dipswitch no. 1 (OFF). In this case, the end-of-line resistor is not required and the
detector contact has to be directly wired to the terminals. When the detector contact closes, the module will receive
the alarm event, but it will no longer be able to detect (and signal) the fault event (but only alarm event).
1IASBOX is equipped with a two-colour LED to indicate: input fault condition (blinking red), alarm status (steady
red), and interrogation status (blinking green, the unit interrogates the module). Use dipswitch no. 2 (OFF) to disable
input fault conditions and alarm status signalling (red light).
1IASBOX module communicates with the fire panel over serial loop and in case of correct communication, the
two-colour LED will blink green. The loop is connected to the AS protocol via SIG and -S terminals. This connection
does not require an external power supply unit.
1IASBOX module is supplied with a reduced-dimension plastic housing and is also suitable to be installed on 503-
type flush-mount boxes.
2. TECHNICAL SPECIFICATIONS
Model: 1IASBOX
Protection class: IP4X
Power supply: DC24V
Operating voltage: DC20,5 to 27,5V
Power consumption: 3,3 mA idle mode, 4,5 mA max alarm mode.
Connections: terminals for inputs, signals communications and serial loop connection.
LED indicators: (on board) two-colour LED indicator for alarm and fault events (selectable),
and communication status.
Controls: rotary dip switches to set ID address.
6-pin dip switch to set operating functions.
Operating temperature: -10 to +50°C; 93% r.h.
Weight: 58 g.
Dimensions: W 91,6 x H 54,7 x D 20 mm.
Distance
between centers: W 84 mm.
Parts supplied: technical manual, balancing resistors (1 x 18KOhm, 1 x 47KOhm).
3. PRODUCT COMPLIANCE
1IASBOX module is compliant with EMC 89/336/EEC directive: tests have been carried out according to
EN50130-4 +A1 + A2 on immunity and EN 61000-6-3 on electromagnetic compatibility.
As to electric safety, 1IASBOX module is compliant with LVD 73/23/EEC directive on low voltage safety:
tests have been carried out according to EN 60950-1 standard.
1IASBOX module is also compliant with EN54-18 standard.
CPD certification n° 0051 - CPD - 0276.
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