Paradise 205486 REV F manual RF Power Detector J4, RF Output Sample J3, Gain Adjust Input J4

Models: 205486 REV F

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3.5 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.

3.6 RF Output Sample (J3)

An RF sample of the amplifier’s output is available at J3. This is a -40 dBc coupled sample of the amplifier’s output signal.

3.7 Gain Adjust Input (J4)

The Gain Adjust Input allows an analog voltage that is applied between (J4 – Pin A) and Ground (J4 – Pin V) to control the gain of the amplifier. The gain is adjustable over a 20 dB range with 0.1 dB resolution. The applied voltage is directly proportional to amplifier gain.

2.5VDC = Maximum Gain: 75 dB

0.5VDC = Minimum Gain: 55 dB

The Compact Outdoor SSPA is factory default to have maximum gain with no analog gain adjust. The gain adjustment must be enabled by running the setup program from a host PC. This prohibits any accidental gain adjustments that may occur from unintentional analog voltages that may be present on the Gain Adjust Control J4-Pin A.

The gain is also adjustable using a host PC and the supplied Paradise Datacom Monitor and Control program. See the Serial I/O Section for details on Serial Control.

3.8 Serial I/O Control (J4)

For serial data control of the Compact Outdoor SSPA, a Windows-based Monitor &Control program is supplied with the amplifier that allows all of the control and alarm functionality over a serial communication link.

Both RS232 and RS485 can be used to communicate with the amplifier. The amplifier default is to operate on RS485 but can easily be set to RS232 by pulling the RS232/RS485 Select line low. This is done by connecting J4-Pin D to J4-Pin V.

Communication Links using RS232 are typically good up to 30 ft. (9 m) in length. Installations exceeding this length can use the RS485 mode which will allow serial control up to 4000 ft. (1200 m).

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205486 REV F

Operations Manual, HPA2, Compact Outdoor SSPA

Page 28
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Paradise 205486 REV F manual RF Power Detector J4, RF Output Sample J3, Gain Adjust Input J4, Serial I/O Control J4

205486 REV F specifications

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