Network Computing Devices Universal Video Interface Series IN2001 - Manual (Page 14)

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IN2000 / IN2001 OPERATION MANUAL - REV. 2.1 12/11/99 ©1996-1997 - INLINE, INC.
INTERFACING TO COMPUTERS WITH BNC OUTPUTS
The IN5129A, IN5132A, and IN5133A are special input cables designed for use with workstations and
terminals which have BNC video outputs. The chart below describes the input signal compatibility for
each of these cables:
Cable / Description Monochrome RGsB RGBS RGBH&V
IN5129A 4 - BNCs X X
IN5132A 1 - BNC X
IN5133A 5 - BNCs X X
Installation Procedure - IN5129A / IN5133A
Installation Procedure - IN5132A
The IN5132A should be connected directly to the computer’s monochrome composite video output. This
cable includes an internal 75 ohm termination so the signal should not be split off to a local monitor
before feeding it into the IN5132A or a double termination will result. If a local monitor is required, use
one of the following methods to split the signal:
Looping Method - If the local monitor has a "Loop Out" connector, connect the monitor
directly to the computer video output. Turn the Loop Out termination switch to "75 ohm
termination OFF" and connect the IN5132A to the monitor’s Loop Out connector.
Distribution Amplifier - use a high resolution distribution amplifier such as the IN2055 to
split the signal between the local monitor and the IN5132A / IN2000.
1. Attach a BNC "T" (1 male, 2 female) to each BNC
output connector on the computer.
2. Connect the IN5129A or IN5133A cable to one
side of the "T" connectors.
3. Connect the local monitor to the other side of the "T"
connectors. If no local monitor is present, use a 75 ohm
Male BNC termination plug on the Red, Green, and
Blue connectors (TTL sync signals do not require a 75
Ohm terminator).
The video signal input to the IN2000 / IN2001 must be terminated into 75 ohms for proper image
display. In order to achieve this termination the following installation procedure should be followed: