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ManualsBrandsAndrew Wireless System ManualsElectronicsION-M Remote Remote Unit for cellular systems
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4. Commissioning
Page 36
Manual ION-M17EP_19P MF0150ACA.docx Manual for ION-
M
17EP
/19P
Alarm Outputs
figure 4-12 Alarm outputs (optocoupler) figure 4-13 Flange connector, 7 poles
The alarm outputs (pins 1 to 4: output with pull-up resistor 5 V / 1 mA; see figure 4-13)
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 (pin 6&7) is specified to 28 VDC / 0.5 A and is protected by a
thermoswitch. In case of exceeding this current between pin 7 and GND, 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 assumes no liability for
damage caused by equipment connected to external outputs or by effects
from such equipment.