4 Alarms
Page 35
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 500 mA thermoswitch. In case of exceeding this current between pin 7 and GND
and/or in case 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
) is available to
connect external devices to the external alarm inputs and outputs.