User guide

Chapter 3 - VMS Configuration 3-13
VMS Network Configuration
Figure 3-10 Mask Unlock Alarm setting
Enabling Auto Home State
A critical feature of Vipersat Networks is the modem Home State. Since the
topology of the network is changing on the fly, it is necessary to ensure that
remote units will recover from a communications outage in a known state. If a
remote loses power, its home state parameters will cause it to boot up into its
burst configuration, awaiting maps from the hub. Knowing this, the VMS can
free up assets (switched demodulators and bandwidth) if it loses communica-
tions with a remote for a settable period of time. This is the Auto Home State
concept.
The recovery cycle is automatic once the operator sets the Auto Home State
parameter in the remote unit.
1. From the VMS Tree View, right-click on each remote data unit (not
expansion units and never any hub units) and open the Properties
window(figure 3-11).
2. Enter a time in minutes for the Auto Home State to take effect, then click
OK.
Caution: A Timeout of no less than 4 minutes is recommended; warning values
less than 4 minutes will create undesirable recovery effects.
CDM-570/570L, CDD-56X
SLM-5650A