Config: Misc  Meo - Comtech EF Data CDM-625A Installation And Operation Manual

CDM-625A Advanced Satellite Modem
Front Panel Operation
To view compiled Statistic logs, access the 'SELECT: Monitor  Statistics' menu (see Sect.
6.2.3.4 for detailed information about viewing compiled Statistics data).
6.2.1.10.9 CONFIG: Misc  MEO
MEO is non-functional when CnC Mode is set to ON.
CDM-625A 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-625A'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).
With MEO disabled, the CONFIG: Misc  MEO screen appears as follows:
MEO: Feature
Press ENTER to access the MEO feature activation screen:
MEO Feature: Disabled (Enabled, Disabled)
Use the arrow keys to select the MEO feature as Disabled or Enabled, and then press
▲▼
ENTER. Once the MEO feature is enabled, you are returned back to the MEO screen, only now
the Antenna Handover function is visible and available for selection:
MEO: Feature
◄ ►
Use the arrow keys to select Feature or Antenna Handover, and then press ENTER.
Antenna Handover
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