Harris Performance 6800 Manuale Utente
Chapter 3: FR-6804/FR-6804-1 Frames
Overview
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6800/7000 Series - Frames and Power Supplies Installation and Operation Manual
The GPI is made up of two parts:
•
A fault sensing circuit within each power supply that monitors the
primary circuit and the two output voltages.
primary circuit and the two output voltages.
•
A relay that provides isolation between Leitch equipment and the
GPI output connector at the rear of the frame.
GPI output connector at the rear of the frame.
There are three connections provided for GPI reporting:
•
Normally closed (NC)
•
Normally open (NO)
•
Ground
To comply with SMPTE standards, the product uses the NC output and
ground. The relay has two states for GPI reporting:
ground. The relay has two states for GPI reporting:
•
OPEN:
An open output signifies that the GPI relay is activated and the
power supplies in the frame are present and operating correctly.
•
CLOSED:
A closed output signifies that the GPI relay has been
de-activated indicating an internal fault in either of the power
supplies or a loss of power to one or both of the supplies.
supplies or a loss of power to one or both of the supplies.