Extron Electronics GLI 2000 2BNC - Manual (Page 2)

GLI 2000 Series • Introduction 1
The GLI 2000 5BNC and GLI 2000 2BNC are heavy-duty, passive
ground loop inhibitors. Ground loop inhibitors eliminate hum
bars (as shown below) and common mode noise caused by
improper video equipment grounding. Ground loop problems
can be caused by using AC power sources with different ground
levels or by plugging high-current equipment into the same
power source as video equipment.
Hum bars
The GLI 2000 series consists of the following models:
GLI 2000 5BNC — The GLI 2000 5BNC inhibits ground loops on
RGBHV, RGBS, RGsB, or RsGsBs video signals. The unit has five
female BNC connectors for input and five for output.
GLI 2000 2BNC — The GLI 2000 2BNC inhibits ground loops on
S-video or composite video signals. The unit has two female
BNC connectors for input and two for output.
Both models feature high bandwidth, high core saturation
voltage to handle even the worst ground loop problems, and
guardrails to protect the connectors.
Introduction