Alarm system – Grass Valley Trinix v.2.4.1 User Manual

Page 41

Trinix Frame

Planning and Installation Manual

Alarm System

There are two Trinix alarm classes: primary and secondary. A sec-

ondary alarm is asserted when a single fan has failed or when the sec-

ondary NR/SR Broadlinx board has taken control of the system. All

other alarms (multiple fan failure, power supply failure, etc.) are con-

sidered primary alarms.

All major components include a local alarm LED. NR/SR-33000 boards

have separate LEDs for primary and secondary alarms.

The master alarm indicator is a tri-color LED on the front panel

(“Power/Alarm”) where green indicates normal operation, red indi-

cates a primary alarm, and amber indicates a secondary alarm.
The rear panel “Alarm” BNC can be configured to report primary

alarms only or both primary and secondary alarms. The factory default

configuration is to report both. (DV-33128 and DV-33256 configuration

is via a jumper on the NR/SR-33000 board, as shown on

. DV-33512 configuration is via a jumper on the RP-33500 512

x 512 Rear Panel board as shown on

Electrically, the Alarm BNC operates according to SMPTE standard

269M-1999. When an alarm is asserted, the circuit associated with the

Alarm connector will present a low impedance to an external current

source circuit provided by the customer. See