Comtech EF Data CDM-625A Installation And Operation Manual page 630

CDM-625A Advanced Satellite Modem
Appendix L
Authorized Service Center for upgrade using CEFD Kit KT-0000174 (for 65W AC units)
or CEFD Kit KT-0000175 (for 65W DC units).
L.1.2 Interoperability Compatibility/Limitations
•
CDM-625A  CDM-625A Interoperability: A CDM-625A Advanced Satellite Modem that is
equipped with the IP Packet Processor is not interoperable for IP/Ethernet Traffic with a
CDM-625A that is not equipped with the IP Packet Processor.
•
CDM-625A  CDM-570/L-IP or CDD-564/L Interoperability: A CDM-625A Advanced
Satellite Modem is interoperable with the CDM-570/L Satellite Modem w/Optional IP
Module (CDM-570/L-IP) and/or the CDD-564/L Demodulator with IP Module using
Streamline Encapsulation and compatible modulation, Forward Error Correction (FEC),
symbol rate, etc. However, the CDM-625A IP Packet Processor's Payload Compression
feature is not
L.2 IP Packet Processor Features
L.2.1 Streamline Encapsulation (SLE)
The IP Packet Processor includes Comtech EF Data's patent-pending, very low overhead
Streamline Encapsulation (SLE). SLE can reduce the encapsulation overhead by as much as 65%
compared to industry-standard HDLC.
L.2.2 Modes of Operation
Appendix K. ETHERNET NETWORK CONFIGURATION
A CDM-625A equipped with the IP Packet Processor can operate in four modes to support Point-
to-Point and Point-to-Multipoint network topologies:
• Router Point-to-Point
• Router Remote
L.2.3 Adaptive Coding and Modulation (ACM)
Appendix M. ADAPTIVE CODING
Comtech EF Data's VersaFEC® Adaptive Coding and Modulation (ACM) feature, a patents-
pending technology wholly owned and developed by Comtech EF Data and CEFD sister division
Comtech AHA Corp., can be used with the IP Packet Processor to maximize throughput.
interoperable with CDM-570/L-IP and/or CDD-564/L payload compression.
• Router Hub
• Managed Switch
MODULATION (ACM)
AND
L–2
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