Comtech EF Data CDM-425, Installation And Operation Manual

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CDM-425 Advanced Satellite Modem
Revision 0
Front Panel Operation 6–47 MN-CDM-425
6.2.1.10.4 CONFIG: Misc

Stats (Statistics)
Link Statistics Logging Interval:
10 minutes (00 to 90) (

)
The Logging Interval is the period over which performance statistics are to be measured. Use the
▲▼ arrow keys either to set this interval as
00 to disable the feature (i.e., no logging), or to select
a logging interval, in 10-minute increments, from 10 through 90 minutes. Press ENTER .
Access the ‘ SELECT: Monitor

Statistics ’ menu ( Sect. 6.2.3.4 ) to view compiled Statistic logs.
6.2.1.10.5 CONFIG: Misc

MEO (Medium Earth Orbit)
MEO: Enable/Disable
(MEO requires ACM, PaP, and no Cnc)
MEO is non-functional when CnC is enabled.
CDM-425 Advanced Satellite Modems are configurable for continuous pairing as Primary and
non-Primary Modems in an Antenna Handover System when the MEO (Medium Earth Orbit)
feature is enabled.
Ethernet data traffic is transmitted and received via the Primary and Non-Primary CDM-625’s four
10/100 Ethernet ports. The Antenna Handover signal received from the user-provided IF/RF
switch determines which modem is the ONLINE or OFFLINE unit:
•
The ONLINE unit transmits traffic only to the WAN side while, at the same time, the
OFFLINE unit’s Tx is muted.
•
Both the ONLINE and OFFLINE units receive the satellite traffic, but only the ONLINE
unit forwards traffic to the LAN side while the OFFLINE unit drops the packets.
•
Any time a unit switches from the OFFLINE to ONLINE state, the traffic destined for the
WAN is buffered, preconfigured in milliseconds (base modem
→
Antenna Handover
delay).
Press ENTER to open the Enable/Disable menu.
CONFIG: Misc

MEO

Enable/Disable
MEO Features: Enabled (Enabled,Disabled)
Antenna Handover (

)
On the top line, the
▲▼ arrow keys to select the MEO feature as
Enabled or Disabled . Press
ENTER . Once the MEO feature is enabled , you may now use the
◄ ►
arrow keys to navigate to
the bottom line. Select Antenna Handover , and then press ENTER to continue.