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IN3055 OPERATION MANUAL - REV. 2.1 02/19/00
©1995-1997 - INLINE, INC.
INSTALLATION
This section offers step-by-step instructions for installing the IN3055. A detailed application drawing showing all
equipment connections is included on the next page.
1. Turn the computer and computer monitor off. Disconnect the computer monitor (if present) from the
video output port on the computer.
2. The IN3055 utilizes a special loop-through input cable, the IN9041, which has a single male 15 pin
HD connector on one end and a double headed (male and female) connector on the loop-through end.
Connect the male side of the IN9041 loop-through input connector to the computer’s video output
port.
3. Connect the local computer monitor (if present) to the female side of the IN9041 loop-through
connector.
4. Connect the IN3055 amplified outputs to the various data displays’ RGB analog inputs using the
appropriate high resolution coaxial cable such as the IN8000 Series or the IN9045. Unused outputs
do not need to be terminated.
5. Connect the round connector on the 9V power supply to the POWER input jack (located next to
Output #4). Connect the power adapter box side of the power supply to the A/C power source.
6. Complete the installation by turning the computer and computer monitor on.
INTERNAL JUMPERS
The IN3055 has three internal jumpers which affect the termination of the Red, Green, and Blue input
signals. In normal installations, the IN9041 loop-through input cable (included with the unit) should be
used on the input connector and either a local monitor or termination plug is attached to the female side
of the loop-through cable. Certain applications may call for the IN3055 to be installed without the
IN9041 loop-through input cable. In this case, the IN3055 internal jumpers should be set to provide a 75
ohm input termination as described below.
1. Remove power from the unit. Remove the two bottom case screws. Slide off the top cover.
2. Gently unplug the internal input cable by pulling up on the connector. Note the orientation of the
connector so you can return the cable to the same position after adjusting the jumpers.
3. Position jumpers JP1, JP2, and JP3 to terminated or unterminated as required:
Jumpers Open
Red/Green/Blue Unterminated (Factory Default setting)
Jumpers Closed
Red/Green/Blue Terminated to 75 ohms
4. Gently replug the input cable.
5. Replace the top cover and tighten the two bottom case screws.
Please note that these jumpers provide termination but no monitor emulation (ID bits).
If no local monitor is used, a termination plug must be installed on the female side of
the loop-through connector to provide the proper 75 ohm input termination. The
IN9031 15-pin HD VGA terminator plug (optional) provides 75 ohm termination for
the RGB signals and emulates a color VGA monitor.
