Comtech EF Data VMS v3.12.x Vipersat - Manual (Page 378)

Switching Out-of-Band Modems MN/22156, rev 12
7-22 VMS User Guide
Figure 7-17 Circuit Configuration, Half Duplex Broadcast
Figure 7-18 Select Modulator, Half Duplex Broadcast
7. Enter the channel Bit Rate for the broadcast.
8. Set the Fixed bit rate feature—either Enabled (checked) or Disabled
(unchecked)—based on the application requirements.
By default, this box is unchecked. In this state, the VMS will provide a best
effort to allocate the requested bandwidth at switch set up; if the full
bandwidth is not available, the circuit will be set up using a bit rate that falls
between the requested rate and the site minimum. A diminished rate may be