Comtech EF Data SDM-650B Spezifikationen Seite 365

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 434
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 364
16–1
Chapter 16. BUC FSK
COMMUNICATIONS
16.1 Introduction
The modulator includes capability to communicate with an ODU Block Up Converter
(BUC) using an FSK signal multiplexed onto the IF output connector along with the TX
IF signal, 10 MHX reference, and DC power to the BUC. The M&C implements
commands to control BUC functions and to query the BUC for configuration or status
information.
FSK Transmitter
Frequency
650 kHz ± 5 %
FSK Deviation
± 60 kHz nominal (+60 kHz mark)
Deviation Tolerance
± 50 kHz minimum, ± 70 kHz maximum
Output Level -5 to –15 dBm
Start Tone Time 10 ms minimum
Output Impedance
50
Start Time 710 kHz
FSK Receiver
Locking Range
Input Sensitivity
± 32.5 kHz
-15 dBm (50)
Transmission Protocol
Baud Rate
Data Bits
Parity
Stop Bits
Message Rate
BUC Response Time
Maximum Response Time
9600 bps
8
None
1
1 every 40 msec
12 msec, typical
40 msec
Note: If the BUC does not respond within the maximum response time the IDU should
cyclically repeat the command.
Seitenansicht 364
1 2 ... 360 361 362 363 364 365 366 367 368 369 370 ... 433 434

Kommentare zu diesen Handbüchern

Keine Kommentare