Comtech EF Data Vipersat CDM-570L, User Manual

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Chapter
3 -
Using the Command Line Interface (CLI)
3-11
Vipersat Configuration
This mode is designed to accommodate the needs of a remote which will not be
continuously connected to the network, but which has the need to be able to
make an on-demand connection when required, such as a mobile remote.
Note that the switch occurs as soon as the hub receives an STDMA ACK even
though there may not be traffic at that time. The persistence of the link will be
determined by the unit’s flag settings.
Refer to Appendix B, "Automatic Switching" for details on this switching
mode.
Group ID
The STDMA group ID number defines a group of equipment which will
respond to the output of the burst controller. This group is addressable within a
network which, in turn, is defined by the network ID number assigned to the
CDM-570/570L.
Note: The STDMA group number and the network ID are independent.
There can be multiple STDMA groups within a single network.
Figure 3-9
Group ID prompt
The target CDM-570/570L group ID can be modified by entering an I at the
command prompt to display the dialog shown in figure 3-9.
Low Data Rate Fast Acquisition
This menu item is a toggle used to enable or disable the Vipersat Burst Fast
Acquisition Timing (BFAT) feature that functions at low data rates (64 kbps to
256 kbps). Entering A at the command prompt will toggle this feature On or
Off.
This feature requires Base Modem firmware version 1.5.2 or later, together with
Router firmware version 1.5.3 or later.
Burstmap Multicast IP
This menu item is used to define the IP address for the Burstmap Multicast that
is sent out by the STDMA burst controller at the Hub to all of the associated
remotes in that group. This address must be the same for all members of the
NOTE