GRASS VALLEY TRINIX NXT -, Installation Manual

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346 Trinix NXT — Installation and Service Manual
Section 16 — Protected Paths
Caveats
When using the Protected Paths option, you should be aware of the fol-
lowing conditions.
The time that it takes to make the switch from a primary path to a sec-
ondary path will depend on the size and configuration of the Routing
switcher, as well as the control system. For example, two 128 Routing
switchers are different than two 512 switchers. The 512 has a different
power supply and has more cards. However, Grass valley has determined
that it will take approximately three minutes to start Broadlinx and locate
86 devices.
When a Trinix frame is started, there are no connections on any of the out-
puts. Connections are made by a control system either running internally
on the Broadlinx processor or an external control module. The connections
are only linked when a control system is active. However, once an output
is enabled it will remain connected even without Broadlinx; as long as there
is power to the Trinix system. When a power loss occurs, the Trinix routing
switcher will return to the same condition that it was in when the power
loss occurred; this is due to the memory on the boards. However, this
memory is immediately deleted when a board is removed from the Trinix
router.
It will take up to four minutes for the Output Signal web page to update
and validate paths. During this time the routing switcher is fully functional.
The Broadlinx web pages display static information from the installed
hardware and are valid within four minutes of any changes. Due to the
length of the update time, Grass Valley recommends that you use your
control system for monitoring.
Adding Stand-By Boards in a Jupiter Controlled Trinix Router
Replacing an output board in a Protected Path system can result in a four
second loss of the signal on a connected output when the Trinix router is
externally controlled by a cross point control system such as Jupiter
Express or Accuswitch.
A output board that is replaced, after being removed from the Broadlinx
system, will be added back into the system within four seconds. However,
that board may be switched to an input by the control system before that
time can caus an anomaly in the output signal.