CDM-625A Advanced Satellite Modem
MN-CDM625A
Front Panel Operation
Revision 4
6–99
6.2.6.8 Utilities: Em (CDM-600/600L Emulation)
The CDM-625A serves as a ‘drop-in’ replacement product for CDM-600 and CDM-600L modems.
An emulation mode is provided to accomplish this design intent, and is configurable via either
this menu or by remote control (remote command
EMU=
).
When emulating a CDM-600 or CDM-600L modem, the CDM-625A opening screen displays the
mode of operation, as per this example:
Comtech CDM-625A emulating a CDM-600
TPC installed Ver 2.2.6
Note that, while emulating a CDM-600 or CDM-600L modem, the I/O responses (including that
of remote query
EID?
) replicate those of the emulated modem; further, the firmware version
number displayed on the opening screen, and the response from the
SWR?
remote query
reflects that of the emulated modem’s firmware version number.
There are some features that the CDM-625A does
not
support, and as a result are not possible
while in CDM-600 or CDM-600L Emulation Modes:
•
Sequential FEC coding;
•
RS-232 synchronous data interface;
•
External ref of 20 MHz;
•
BUC leveling;
•
Operation below 18 ksps or 18 kbps.
Other parameters have become ‘
don’t care
’:
•
Impedance;
•
External Clock.
Summary of Contents for CDM-625A
Page 2: ......
Page 4: ...ER CDM625A EA4 Rev...
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Page 42: ...CDM 625A Advanced Satellite Modem MN CDM625A Preface Revision 4 xxxvi Notes...
Page 82: ...CDM 625A Advanced Satellite Modem MN CDM625A Installation Revision 4 2 6 Notes...
Page 118: ...CDM 625A Advanced Satellite Modem MN CDM625A Updating Firmware Revision 4 4 14 Notes...
Page 124: ...CDM 625A Advanced Satellite Modem MN CDM625A FAST Activation Procedure Revision 4 5 6 Notes...
Page 230: ...CDM 625A Advanced Satellite Modem MN CDM625A Front Panel Operation Revision 4 6 106 Notes...
Page 582: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix B Revision 4 B 46 Notes...
Page 638: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix F Revision 4 F 32 Notes...
Page 642: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix G Revision 4 G 4 Notes...
Page 666: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix K Revision 4 K 18 Notes...
Page 704: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix M Revision 4 M 24 Notes...
Page 712: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix M Revision 4 M 32 Notes...
Page 722: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix Q Revision 4 Q 2 Notes...
Page 738: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix R Revision 4 R 16 Notes...
Page 754: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix U Revision 4 U 6 Notes...
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