Speed Up Ebno; Target Dpc Address; Figure 3-49 Speed Up Ebno Prompt - Comtech EF Data Vipersat CDD-562L User Manual

V i p e r s a t C o n f i g u r a t io n

Speed Up EbNo

Normally, the PLDM (Path Loss Data Message) is sent every 60 seconds from
each terminal in the network. If the current Eb/No value of the terminal drops
below the Speed Up EbNo set value, the corresponding terminal increases its
PLDM send rate to every 15 seconds until the current value becomes greater
than the set value. This provides a loop speed up to rapidly regain link quality.
Enter Q at the command prompt in the DPC Configuration screen to access the
Speed Up EbNo dialog shown in figure 3-49. The default value for this parame-
ter is 5 dB.
Figure 3-49
Speed Up EbNo prompt

Target DPC Address

The Target DPC Address identifies the modem that is transmitting to this
CDD-56X Demod, and will be receiving the PLDM messages that provide the
current Eb/No value for this Demod. Typically, all Remotes will specify the
Hub modem that is supplying the TDM outbound carrier.
For STDMA Remotes, the Outbound IP address is sent out via the Burst Map,
and the DPC Target for these Remotes is automatically mapped to that address.
However, since all CDD-56X Remotes operate as SCPC mesh units, the Target
DPC Address must be manually configured with this command.
Enter the number corresponding to the appropriate Demod (1, 2, 3, or 4) at the
command prompt to display the Target DPC Address dialog shown in
figure 3-50.
C h ap t e r U s i n g t h e C o m m a n d L in e I n t e r f a c e ( C L I )
3 - 3-39