Alarm Outputs - RF Technology Eclipse Series Operation, Maintenance And Installation Manual

3.4
Receiver Alarms
LED Flash Cadence
5 flashes, pause
4 flashes, pause
3 flashes, pause
1 flash, pause
LED ON continuously
Transmitter Alarms
LED Flash Cadence
5 flashes, pause
4 flashes, pause
3 flashes, pause
2 flashes, pause
1 flash, pause
LED ON continuously
Input Signal Lines
The alarm inputs are diode protected. Two Alarm_Low inputs (pin 9 and pin 22 at D6
and D7) and two Alarm_High inputs (pin 10 and pin 23 at D8 and D9) are provided so
that third party equipment may also be monitored.
The external Eclipse power amplifier may be monitored through two lines at
pin 8, T/R_Relay_Main and pin 21, RFO_Main. Both lines must be connected for
proper operation. Q1, Q7 & Q2 provide the logic for alarm condition.
To force the HSS into STANDBY mode the Force_Stby line pin 12 and D11 should
be connected to GND momentarily. This line is protected by diode D11.
3.4

Alarm Outputs

Alarm Double Beep Audio Tone
Any main repeater alarm or fault condition will cause the HSS to switch to
STANDBY. If link JP2 (Alarm Beep Enable) is fitted, a double beep tone of
approximately 8 seconds interval is mixed in with the audio on the standby repeater
(pin 2, Stby_DirAudio_out). RV3 adjusts the beep tone level.
Power Loss Alarm Double Beep Audio Tone
Loss of ac power to the main repeater or dc power supply failure in the main repeater
will cause the HSS to switch to STANDBY. If links JP1 (Low voltage detector) and
JP2 (Alarm Beep Enable) are fitted, a double beep tone of approximately 2 seconds
interval is mixed in with the audio on the standby repeater (pin 2,
Stby_DirAudio_out). RV3 adjusts the beep tone level.
RV2 sets the threshold of the low voltage detector circuit.
RF Technology Hot Standby Switch
Fault Condition
Synthesizer unlocked
Tuning voltage outside limits
Signal level below preset threshold (fixed link)
dc supply voltage low or high
External squelch is active
Fault Condition
Synthesizer unlocked
Tuning voltage out of range
Low forward power
High reverse (reflected) power
Low dc supply voltage
Transmitter timed out
ALARM OUTPUTS
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