Comtech EF Data CDM-570A Installation And Operation Manual page 224

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Ethernet-based Remote Product Management
2) Certain page functionality becomes disabled or inaccessible while the modem is
3) Certain feature options becomes disabled and unavailable while the modem is
4) Certain operational settings will reset to a default or fallback value when the
Re-Center Buffer
Click [Re-Center Buffer] to force the re-centering of the Plesiochronous/Doppler buffer.
Unit
Use the drop-down lists provided in this section to configure Test Mode, Stats Sample Interval,
Front Panel Lockout, RTS/CTS Control, and HSSI Handshake Control.
Click [Submit Unit Utilities] to save.
set to CDM-570 Compatibility Mode:
•
'Configuration | Modem' page (Sect. 7.4.3.3.1)
o Transmit section: Tx Clock Invert
o Receive section: Rx Clock Invert
o Carrier-in-Carrier (CnC) section (including APC settings)
• 'Configuration | Overhead' page (Sect. 7.4.3.3.7)
o CnC-APC section
• 'Configuration | Utilities' page (this section)
o BERT Config section
o BERT Monitor section
set to CDM-570 Compatibility Mode.
•
'Configuration | Modem' page (Sect. 7.4.3.3.1)
o Transmit section:
Tx FEC Type – VersaFEC and ULL unavailable*

Tx Filter Rolloff Factor – Becomes fixed at 0.35

o Receive section:
Rx FEC Type – VersaFEC and ULL unavailable*

Rx Filter Rolloff Factor – Becomes fixed at 0.35

(*FEC Type defaults to Viterbi; Modulation/Demodulation Types, FEC
Code Rates, and Data Rates all adjust accordingly)
modem is set to CDM-570 Compatibility Mode. You must be sure to reconfigure
the modem to your previously configured settings.
•
'Configuration | Modem' page (CDM/R-570AL only) (Sect. 7.4.3.3.1)
o Transmit section: Frequency value >2000 MHz resets to 1201 MHz
o Receive section: Frequency value >2000 MHz resets to 1201 MHz
•
'Configuration | Utilities' page (this section)
o Clocks section: If Internal plus output selected, resets to Internal.
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MN-CDM570A
Revision 3