Comtech EF Data CDM-570A - Manual (Page 220)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
Ethernet-based Remote Product Management Revision 2
7–52
2) Certain page functionality becomes disabled or inaccessible while the modem is
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
3) Certain feature options becomes disabled and unavailable while the modem is
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)
4) Certain operational settings will reset to a default or fallback value when the
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.
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.