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Eng
1.1
Mounting the Alarm Routing Module (ARM)
Introduction
The Alarm Routing Module (ARM) is for use in the SM 25B Booster Frames or Module Exten-
sion Frame (MXF). It is an alarm signal and time signal generating module for public address
applications. A block diagram is shown in fig. 1.1.
Note: An ARM operates in a Booster Frame (or MXF). Refer also to the respective Installation
Instructions for these modules.
Front panel (fig. 1.2):
1. Power indicator (green LED)
Rear panel (fig. 1.3):
2. Alarm input - 5-pole 180° DIN (lockable)
3. Time signal input - 5-pole 180° DIN (lockable)
Alarm indicators
Optional external LEDs can be connected in series with the alarm or time signal switches.
Note: It is possible to connect optional external LEDs that illuminate when switch contacts are closed.
For optimum compatibility with the alarm or time signal, the following settings should be made:
•
For the alarm and/or time signal, activation/deactivation switches must be set to ON/OFF.
•
For the alarm signal, switching contacts must be set to normally open.
For more information, refer to section 1.3.
Alarm and time signal Inputs
The ARM must be configured so that either the alarm signals or time signals are routed to
preselected zones (or group of zones). If the alarm signals are routed to preselected zones
(or group of zones), the time signals are routed to all zones (all-call), and vice versa. A priority
level can be separately assigned (1 to 5) for both the alarm and time signals. External alarm
or time signal triggering switches are connected via the rear panel of the ARM, which is
accessible from the rear of the Booster Frame or MXF.
Configurable functionality
The ARM can be configured for extra functionality using switches and potentiometers on the
PCB. The following can be configured:
•
Priority level 1 to 5 (alarm signal input)
•
Priority level 1 to 5 (time signal input)
•
Alarm/time signal routing (all call or zone selection)
•
Alarm or time signal zone selection (zones 1 to 12)
•
Alarm signal (13 signals available)
•
Alarm signal activation/deactivation properties
•
Time signal (4 signals available)
•
Time signal activation/deactivation properties
•
Alarm and time signal level
8
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