System alarm overview, Protected path alarms – Grass Valley Trinix NXT v.3.3.1 User Manual
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Trinix NXT — Installation and Service Manual
Section 9 — Protected Paths
System Alarm Overview
The Trinix system alarm is designed to monitor various router functions,
including operation of cooling fans, frame power supplies, on-board power
supplies, and primary vs. secondary Broadlinx board operation. Any alarm
for these critical items will be treated as a Primary alarm. The alarm system
has two modes:
•
No alarms, which will illuminate the green LED on the front door of the
router and on the Status LED on the back of the router.
•
A primary alarm mode, which will illuminate the red LED on the door.
Note
A primary alarm and on the Asymmetrical router will illuminate the red LED
on the door.
The system alarm is connected to the LED on the front door of the router
and the rear panel Alarm BNC connector.
A jumper on the Broadlinx board is normally set so that the alarm mode
will also enable the rear-panel Alarm BNC connector.
Note
Additional information concerning the Trinix systems alarm can be found in
Troubleshooting
Protected Path Alarms
As described above, the protected path web page will indicate failure/
change-over conditions using various colors and flags. For example, in
, the red flag and numbers indicate failures in primary paths and
secondary paths. System alarms can also be triggered according to the
selection made using the alarm drop-down box.
In the example shown in
, the yellow flags in the
Status column indicate failures in two primary paths. The Primary path
output 0 and 1 has failed and the system is now using secondary path
output 512 and 513 instead. If one or more secondary paths were to fail:
•
For the Symmetric frame, a red LED would be seen on the front door; if
the jumper described above is in the default position, an alarm condi-
tion would also be present on the rear panel Alarm BNC connector.
•
For the Asymmetric frame, a red LED would be seen on the front door
and on the rear panel Alarm BNC connector.