CCTV INSTALLATION TIPS (cont)
Similarly remove all but one ground connection on each
coaxial cable if possible, the ground is usually at the monitor
end of the coaxial cable because the monitor equipment plugs into
the 60 cycle main power supply which is grounded.
Sometimes a ground loop problem can be reduced by reversing
the AC plug on the power transformer used to power the camera, or
reverse the 24 VAC power connection to the camera. This technique
will not work on DC powered camera's.
If the problem still persists, a GB60-UTP can be installed at
the end of the coaxial cable to eliminate the 60 cycle bars. This
is much easier and cost effective when you consider the labor cost
to find and solve the ground-loop problem.
With an understanding of Ground Loop problems and the
use of the GB60-UTP, you should be able to keep the 60 cycle bars
out of your CCTV installations.
SPECIFICATIONS
INPUT
SPECIFICATION
Level
1
Volt
Peak/Peak
Nominal
Impedance
105
Ohms
Video
Standard
CCTV,
NTSC,
PAL
Common Mode Rejection
40 dB
Connectors
Screw
Terminal
Equalization Distance
0-2000 feet (twisted pair)
PROCESSING
Input Distance (Adjustable)
0 - 2000 feet
RF
Bandwidth
5
MHz
Flat
DROP (TAP) OUTPUT
Level
1
Volt
Peak/Peak
Impedance
75
Ohm
Connector
BNC
(Female)
Signal to Noise Ratio
70 dB
OUTPUT
Level
1
Volt
Peak/Peak
Impedance
105
Ohm
Connector
Screw
Terminal
Equalization
Distance 0-2000
feet
Signal to Noise Ratio
70 dB
Total Equalization Distance
0-4000 feet (In-Out)
MECHANICAL
Size
5.5"
L
x
3.3"W
x
2"D
Enclosure
ABS
with
Mounting
Flange
Power Requirements
24 DC Wall Mount (Supplied)
TPT-4000.ISB
PAGE
6
OF
6
