User's Manual

User’s Manual for
Remote Unit ION™-M17/17P/17P
Page 36 MF0143AWA.doc
4.5. EXTERNAL ALARM INPUTS AND OUTPUTS
G1038Z0
G1038Z0
figure 4-1 Flange connector, 5 poles figure 4-2 Flange connector, 7 poles
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.
The +28 V pin (for its location see figure 4-2 Flange connector, 7 poles) is protected
by a 500mA thermoswitch. In case of exceeding this current between pin 7 and GND
and/or in c
ase of a failure of the VSWR module, the thermoswitch turns into a high-
resistive status. In this case no fuse needs to be replaced. Just wait a few minutes
until the thermoswitch reaches the normal operating temperature again.
 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.
As accessory equipment the alarm kit (see chapter 6.3 Spare Parts) is available to
connect external devices to the external alarm inputs and outputs..