Comtech EF Data SDM-9000 Installation And Operation Manual page 33

SDM-9000 Satellite Modem
Temperature Range
Humidity
Output Power
Output Spurious and Harmonics
Output Impedance
Output Return Loss
Output Frequency Stability
Internal Data Clock Stability
Input Power (Desired Carrier)
Input Impedance
Input Return Loss
Carrier Acquisition Range
Clock Acquisition Range
Serial Interface
Baud Rate
Functions Controlled
Signals Monitored
Configuration Retention
Addressing
Note: Local control of all remote functions included by push-button entry.
Rev. 4
Environmental
0 to 50°C
0 to 95%, noncondensing
Additional Modulator Specifications
-20 to +5 dBm, adjustable in 0.1 dB steps
±
Accuracy 0.5 dB
-55 dBc
Ω Ω
75 (50 optional)
> 18 dB
± ±
10 PPM ( 0.2 PPM with high stability option)
±
10 PPM internal oscillator
±
0.2 PPM with high stability option
Additional Demodulator Specifications
-45 to -25 dBm
Ω Ω
75 (50 optional)
> 18 dB
±
60 kHz maximum
±
100 PPM
Remote Control Specifications
RS-232-C or RS-485
110 to 19200 bit/s
•
Transmit/Receive frequency
•
Transmit power
•
Transmitter on/off
•
Data rate/modulation
•
RF/IF loopback
•
Baseband/Interface loopbacks
•
Scrambler/Descrambler types
•
Scrambler/Descrambler on/off
•
Buffer clock TX/RX/INT/EXT
•
Receive clock normal/invert
•
Differential encoding and decoding
•
Transmit and receive overhead type
•
IDR backward alarm control on/off
•
Reed-Solomon on/off
•
Mod and demod spectrum norm/invert
•
Sweep width range
•
Rev emulation current/functional
•
Raw error rate
•
Corrected BER
•
Receive E
•
Receive signal level
•
Receive carrier detect
•
Power supply voltages
•
Fault status
•
Current sweep value
•
Stored fault status
Will maintain current configuration for at least one year
without power
Programmable to 1 of 255 possibilities; address 0 reserved
for global addressing
/N
b 0
Introduction
1–11