Comtech EF Data CDM-625A Installation And Operation Manual page 173

CDM-625A Advanced Satellite Modem
Front Panel Operation
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)
On the top line, the
ENTER. Once the MEO feature is enabled, you may now use the
the bottom line. Select Antenna Handover, and then press ENTER to continue.
CONFIG: Misc  MEO  Enable/Disable  Antenna Handover
Use the
First, on the top line:
Use the
the DPD (Differential Path Delay) limit.
•
To set the Antenna Handover operation, use the
as Enabled or Disabled.
•
To set a value for the DPD limit for this unit, use the
value from -30 to (+)30.
Then, on the bottom line:
Use the
the Communication Port Address.
Antenna Handover
arrow keys to select the MEO feature as Enabled or Disabled. Press
▲▼
Antenna Handover: Enabled
Mode = Manual
◄ ►
arrow keys to navigate to the proper line:
◄ ►
arrow keys to select the Antenna Handover operational control and to set
◄ ► arrow keys to select the Antenna Handover switching mode and to assign
()
Port = 05501
▲▼
▲▼
6–49
MN-CDM625A
Revision 4
◄ ► arrow keys to navigate to
DPD = 00
()
arrow keys to select operation
arrow keys to select a DPD