Advantech AMT SSPB-Ci60, Инструкция по установке и эксплуатации

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SSPB-Ci60
4.3.1 L-B
AND TO
CI-B
AND
U
P
-C
ONVERTER
M
ODULE
The
L/CI-Band Up-Converter Module converts and amplifies the incoming L-Band carrier
into the desired CI-Band carrier.
The module has an internal synthesizer, which is fixed at 5500 MHz.
The up-converter module has RS-485 communication port that connects to the main controller
board. It also provides a discrete ALARM signal to the Main Controller.
4.3.2 P
OWER
A
MPLIFIER
M
ODULE
The
Power Amplifier Module amplifies the RF signals from the L/CI-Band
up-converter module over the frequency range of 6725 MHz to 7025 MHz. The power amplifier
has a fixed gain of 48 dB, typical.
The monitoring and control signals are the Alarm Output and the Relay Input for muting the
power amplifier.
Temperature sensors are installed at the module’s hot spots to prevent the RF devices from
overheating and operating at temperatures exceeding 85ºC.
The power amplifier also has the following functions:
1. Provides and removes the DC voltages to the GaAs FET devices within the module.
2. Provides a temperature dependent DC voltage to the L-C up-converter for temperature
compensation.
3. Sends a FAULT signal to the main controller board when detecting a fault.
4. Any Synthesizer is out of lock
The power amplifier will be in the Mute mode if:
1. The user sends a MUTE command through the Relay, RS-232, or RS-485 interfaces.
2. The hot spot temperature e85
°
C.
3. Any of the GaAs FET devices failed (drain current out of range).
4.3.3 W
AVEGUIDE
A
SSEMBLY
The
Waveguide Assembly contains a forward and reflected power detector, an RF output
circulator and a waveguide receive reject filter.
The forward power detector and the reflected power detector monitor the RF output power level
and the reflected power level respectively. The detected voltage signals are delivered to the
Power Monitor Module that converts the analog signals in digital signals and delivers them to the
Main Controller Board.
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