Constellation® January 2006
4-18 Technical Specifications
Alarm List for Relay Output
The following radio alarms can be configured through the Keypad.
• Major Alarm
• Minor Alarm
• Input LOS
• Sync Loss A
• Sync Loss B
• Errored Seconds A
• Errored Seconds B
• Signal Degradation A1
• Signal Degradation A2
• Signal Degradation B1
• Signal Degradation B2
• On Line Mod/Tx A
• On Line Mod/Tx B
• On Line Rx A
• On Line Rx B
• On Line HLM
• Manual Control (external site control)
Relay Specifications
Radio alarm relays are provided as dry relay contacts to customer equipment
from the External Alarm/Control connector.
Table 4-8: Relay specifications
Characteristic Value
Nominal switching capacity (resistive) 2 A, 60 VDC
Maximum switching power (resistive) 60 W
Maximum switching voltage 220 VDC
Maximum switching current 2 A
Minimum switching capability 10
µA, 10 mV DC
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