4. Commissioning
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M0200AJA_ION-U_EU_L_17EP_17EP.docx
User’s Manual for ION
®
-U
4.4. External Alarm Inputs
With the external alarm inputs, it is possible to monitor the status of connected devices,
e.g. a UPS, via software. All alarm inputs are normally high (5 V) without connection.
The polarity (high/ low) can be set via the software at the Master Unit (for details please
see the appropriate ION-U software manual).
The device to be monitored must be connected so that the alarm contacts will be closed
in case of an alarm (I max = 8 mA). The alarm inputs are potential-free with common
ground (earth).
Subminiature circular connectors series 712 with five contacts, which are contained in
the alarm kit, can be ordered directly from the Binder Connector Group, the
manufacturer, or indirectly from CommScope.
4.5. Troubleshooting
The status of the Extension Unit can be checked via the Master Unit (for details please
refer to the ION-U software manual). Locally, the status can be checked at the LED,
see chapter
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