User's Manual

5. Alarms

Page 42

7.Manual MF0200A0A ION-U_H_17P2_uc_19-July-13.docx

User

’

s Manual for ION

5.5. External Alarm Inputs and Outputs

The eight-pin EXT ALARM IN/OUT connector supports two external alarm inputs and

two external alarm outputs. Chapter 4.2.7 Ext. Alarm In / Out Port includes the

connector’s pin-out information and chapter 4.2.2 Connections identifies the

connector’s location.

The alarm outputs (open collector output 5 V / 1 mA) are normally low. In case of an

alarm they are high active (5 V). They can be used to monitor alarms with an external

alarm indicator.



Note: The manufacturer / supplier of this system accepts no liability for

damage caused by equipment connected to external outputs or by

effects from such equipment.

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 eight contacts, which are included

in the alarm kit, can be ordered directly from the Binder Connector Group, the

manufacturer, or indirectly from CommScope.

figure 5-2 Alarm inputs and outputs, standard