Comtech EF Data CDM-625A, Installation And Operation Manual

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CDM-625A Advanced Satellite Modem MN-CDM625A
Front Panel Operation Revision 4
6–5
•
Sect. 7.6 Turbo Product Codec (Hardware Option)
•
Sect. 7.7 TPC and Low Density Parity Check (LDPC) coding
•
IP Packet Processor Card – The screen displays PktP when you install this hardware option.
Appendix L. IP PACKET PROCESSOR OPTION
•
VersaFEC-2 – The screen displays VFEC-2 when you install this hardware option.
Appendix M. ADAPTIVE CODING and MODULATION (ACM) OPTION
•
CDM-600/600L Emulation Indication – The CDM-625A serves as a ‘drop-in’ replacement
product for CDM-600 and CDM-600L modems. Comtech EF Data provides an emulation
mode to accomplish this design intent. You may configure this mode via the front panel
( SELECT: Utility

Em ) or by remote control (remote command EMU= ).
When you select emulation, the CDM-625A opening screen displays this mode of operation,
as this example shows:
Comtech CDM625A emulating a CDM-600
TPC,PktP present Ver2.2.6
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 remote query
SWR? reflects that of the emulated modem’s firmware version number.
• Warm-up Delay Mode counter
– When you select the warm-up delay mode, the modem
turns the carrier
off
during the warm-up time, and the bottom line of the screen displays the
countdown message:
Comtech CDM625A emulating a CDM-600
High-Stability Ref warming up: 009 sec