Comtech EF Data CDM-570 User Manual
Page 18
CDM-570/570L Satellite Modem with Optional IP Module
Revision 12
Table of Contents
MN/CDM570L.IOM
x
10.3.2
Buffer Enabled, Tx=Rx ....................................................................................................... 10–3
10.3.3
Buffer Enabled, Rx<>Tx .................................................................................................... 10–3
10.4
X.21 Notes .................................................................................................................................. 10–3
10.5
G.703 Clock Extension .............................................................................................................. 10–6
10.5.1
Clock Extension Mode 1 ..................................................................................................... 10–6
10.5.2
Clock Extension Mode 2 ..................................................................................................... 10–7
10.5.3
Clock Extension Mode 3 ..................................................................................................... 10–7
CHAPTER 11.
EDMAC CHANNEL ..................................................................................... 11–1
11.1
Theory of Operation ................................................................................................................. 11–1
11.2
M&C Connection ...................................................................................................................... 11–2
11.3
Setup Summary ......................................................................................................................... 11–3
CHAPTER 12.
OFFSET QPSK OPERATION ..................................................................... 12–1
CHAPTER 13.
ETHERNET IP MODULE INTERFACE ....................................................... 13–1
13.1
Introduction ............................................................................................................................... 13–1
13.2
Major Assemblies ...................................................................................................................... 13–1
13.3
Ethernet IP Module Standard Features .................................................................................. 13–1
13.3.1
10/100BaseT Ethernet Interface .......................................................................................... 13–2
13.3.2
Network-Based Management .............................................................................................. 13–2
13.3.3
Remote Software/Firmware Upgrade via FTP .................................................................... 13–2
13.3.4
Configuration Backup and Restore via FTP ....................................................................... 13–3
13.3.5
Event Logging to Capture all IP Module Activity .............................................................. 13–3
13.3.6
Detailed Statistics of IP Traffic ........................................................................................... 13–3
13.3.7
IGMP Support for Multicast ............................................................................................... 13–3
13.3.8
Static IP Routing for Unicast and Multicast ....................................................................... 13–3
13.3.9
Managed Switch Mode ....................................................................................................... 13–4
13.3.9.1 Managed Switch Mode Operation ................................................................................................ 13–4
13.3.10
Streamline Encapsulation ................................................................................................ 13–6
13.3.10.1 Combined Working Mode ............................................................................................................. 13–7
13.4
IP Module Optional Features ................................................................................................... 13–8
13.4.1
CDM-570/570L IP Module Demo Mode ............................................................................ 13–8
13.4.2
3xDES Encryption with Ability to Change Keys ............................................................... 13–9
13.4.3
IP Header Compression ...................................................................................................... 13–9
13.4.4
Payload Compression ........................................................................................................ 13–10
13.4.4.1 ADLC vs. LZS Compression Comparison................................................................................. 13–10
13.4.5
Quality of Service ............................................................................................................. 13–11
13.4.5.1 Maximum Bandwidth/Priority QoS Mode ................................................................................. 13–11
13.4.5.2 Minimum/Maximum Bandwidth QoS Mode ............................................................................ 13–14