SHAPING THE FUTURE SATELLITE OF COMMUNICATIONS
Contact Closure Alarm Outputs
Figure 9 - Contact Closure Alarm Outputs
The dry contact closure alarm contacts can be used to connect to a redundancy
switching system.
Figure 10- Modulator Alarm Connector Pin Connection
Pin 2 and 4 are either floating or tied to chassis ground.
• The common general alarm is active when the device is not working properly.
For example: when the power supply fails.
• The common input alarm is active when the device does not receive an input
signal.
10.0 MHz Reference Input
This input is used when you need a reference with enhanced stability or when you
need several devices to be synchronised to the same clock source. The level
should be 0 dBm, nominally. The 10.0 MHz reference input is only available if this
one of the following options is installed.
• GR-01: 10MHz reference In/Out high stability;
• GR-02: 10 MHz reference In/Out very high stability.
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