2 / 20
P/N 55370172 • REV 05 • ISS 30OCT13
3
4
5
8
112
EN: Installation Sheet
Description
This document includes installation information for the
IU2055C zone monitor. The IU2055C provides an interface
between conventional smoke detectors and compatible
addressable fire control panels.
The module supervises the conventional zone for open circuits,
short circuits, and alarm conditions.
The module enables the addressable panel to monitor the
presence and operation of up to 30 conventional detectors in
standard installations, or up to 20 intrinsically safe (IS)
conventional detectors in intrinsically safe installations.
Notes:
•
If a large number of conventional zones are required an
externally powered system is recommended, e.g. add one
or more conventional panels to the system installation.
•
Use loop calculation software (e.g. System Builder) to
validate the predicted loop load before installation.
Installation
Caution:
For general guidelines on system planning, design,
installation, commissioning, use and maintenance, refer to the
EN 54-14 standard and local regulations.
Note:
To avoid fluctuations in the conventional zone current
that may cause communication problems on the addressable
loop, ensure the following:
•
The total load on the conventional zone must not exceed
30 devices.
•
All non-Aritech devices connected to the conventional
zone must draw a constant current.
Guidelines for intrinsically safe installation
When used in an intrinsically safe system, the IU2055C must
be installed immediately outside the intrinsically safe (Ex-
classified) area and as close to the GBX2000 barrier as
possible. The module must be configured for intrinsically safe
operation (see Module configuration).
Module layout
Figure 2 shows:
1. Analogue addressable loop input
2. Analogue addressable loop extension
3. Remote LED output
4. Fault LED
5. Configuration jumper J5
6. Configuration jumper J4
7. Conventional zone output
Note:
Communication lines are polarity sensitive.
WARNING:
Only devices connected to the output of the
GBX2000 may enter the intrinsically safe area.
Assembly
Install the module into the protective housing as shown in
Figure 1. Connecting cables should be fed through cable entry
hole at the rear of the protective housing before the module is
fixed into place.
Configuration
The module operation is configured using jumpers J4 and J5
(see below). The default configuration is for standard operation
(non-IS).
Jumper
Standard
Intrinsically safe
J4
On
Off
J5
Off
On
Standa
rd installation wiring (non-IS)
Connect the module to the fire panel using the COM2 (positive)
and COM1 (negative) inputs as shown in Figure 2.