Comtech EF Data CDM-570/570L Vipersat - Manual (Page 93)

Chapter 3 - Using the Command Line Interface (CLI) 3-57
Vipersat Configuration
DPC Enabled
The DPC Enabled command (enter E) is a toggle that allows the DPC feature
to be either Enabled or Disabled. The CDM-570/570L is shipped with the DPC
Enabled menu item turned off (Disabled) to allow entrance link levels calibra-
tion during terminal setup.
Max Power
The commissioning of a satellite terminal must comply with the calculated link
budget that is conducted before terminal installation. Using these calculations,
the maximum transmit power level permitted for all SCPC modulator(s) based
on link/satellite parameters can be configured. This is the value displayed as the
Max Power in the DPC Configuration menu. The Calculate Max Power
command is used to set this value, as described in the following section.
Max Power initially displays as INVALID until the DPC operating parameters
are defined and the Calculate command is executed from the Calculate Max
Power screen. The calculation should return a modulator output value that falls
within equipment limits. However, if the calculator returns an error
[INVALID], one of the following has occurred:
• The base level is too high.
• The operating parameter settings have exceeded the capacity of the
equipment.
• The uplink variables for the entrance link cabling attenuation and the High
Power Amplifier gain are not balanced.
Calculate Max Power
Enter M at the command prompt in the DPC Configuration screen to access the
Calculate Max Power screen (figure 3-76).
Figure 3-76 Calculate Max Power screen