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Cable Lengths and Distribution Amplifiers
To aid in achieving the bet results from your installa-
tion, we suggest the following minimum standards
for cable runs when an LD100 is used.
To preserve the video quality of the LD100, the
signal path should be no more than –3db down at
25 MHz through a 75 ohm cable. Any distribution
amplifier should have a bandwidth no less than
–3db down at 25 MHz.
The following cable lengths are the maximum rec-
ommended continuous lengths of 75 ohm coax
cable with BNC connectors on each end as well as
15 pin VGA cable (when using the VGA output).
Cable Type Maximum Length
Mini BNC cables, 75 ohm 100 Feet
1.15nS/Foot propagation
RG-59/U type cable, 75 ohm 150 Feet
75 ohm precision video cable 200 Feet
Belden 8281
15 pin, high resolution VGA cables 25 Feet
utilizing individual high resolution
mini-coax cables for each signal from
LD100 to monitor.
VGA Connector Pinout
Pin Function
1 Red Video
2Green Video
3 Blue Video
4 Not Used
5Ground
6 Red Return (Ground)
7Green Return (Ground)
8 Blue Return (Ground)
9 Composite Sync
10 Composite Sync Return (Ground)
11 Not Used
12 Not Used
13 Horizontal Sync
14 Vertical Sync
15 Not Used
Figure 8
16
APPENDIX B
APPENDIX C