UNITY 4600 USER’S MANUAL
800032-01 Rev. F 24 www.wegner.com
Several user- or network-programmable objects control the Automated Recovery. In addi-
tion to the contents of the Preset Table, these objects include the Services Recovery Time-
out, the Network Recovery Timeout, the Recovery Iteration Time, and the Local Control Re-
enable Timeout. The first two timeouts control how long the unit will wait after loss of ser-
vices or network control, respectively, before entering Automated Recovery. The Recovery
Iteration Time sets the maximum time the unit will spend attempting recovery at each pre-
set. The last is a special timeout for disaster recovery, such as loss of a satellite, where
units whose local control was previously disabled by the network are re-enabled so that
local users may implement more complex recovery plans.
Monitoring and Control Most routine U4600 operations can be performed over Wegener’s COMPEL Network Con-
trol System. Control is "broadcast" to individual units through a "ghost-PID" data component
of the incoming transport stream. The U4600 is considered disconnected from the network
at any time this special stream is not being received.
In addition to the remote COMPEL network control, three methods are provided for "local"
monitoring and control of the U4600:
1. A web browser interface (to be released August 2005);
2. a terminal interface (direct serial or via telnet over TCP/IP); and
3. a front-panel interface.
NOTE: Local control may be limited by COMPEL command.
The remainder of this chapter details these local monitor and control interfaces.
Figure 3.1: Unity 4600 Functional Block Diagram