Paradise 205486 REV F - Manual (Page 33)

Operations Manual, HPA2, Compact Outdoor SSPA 208495 REV C 33
The Auxiliary Input is a contact closure to ground. When this input is pulled to ground the
Auxiliary Alarm relay is energized (Normal State). When the Auxiliary Input is open circuited
the Auxiliary Alarm relay is de-energized (Alarm State).
One example usage of the Auxiliary Alarm is that it could be used to signal one of the detail
alarms (voltage, current, or temperature) by connecting the appropriate open collector alarm
output to the Auxiliary Input. This programs the Auxiliary Alarm relay to be either a voltage,
current, or temperatue Form C relay alarm.
3.1.3.3 Open Collector Alarm Outputs (J4)
The open collector alarm outputs will require external pull-up resistors (unless connected to
the Auxiliary Input). They are capable of sinking up to 20 mA current at 30 VDC. The open
collector outputs are pulled to ground under normal operating conditions and switch to high
impedance state during an alarm condition.
Low RF Alarm: follows state of Auxiliary Input as described above
BUC Alarm: high when amplifier’s internal regulator voltage falls below its acceptable
level
3.1.4 RF Power Detector (J4)
The RF Power Detector is an analog output voltage that is proportional to the RF output
power. The maximum output voltage is 4.0 VDC which corresponds to the maximum
(saturated) output power from the amplifier. This detected voltage is useful over a 20 dB
range of output power.