Extron Electronics HDMI 101 Plus User Guide - Manual (Page 12)

Powering Via the Input Source
For shorter distances, the HDMI 101 Plus can receive power from the input device via the 5
VDC signal on pin 18 of the HDMI cable (see the
table on page 3). This eliminates the external
power supply. However, for best unit performance, Extron recommends using the external
supply.
NOTES: • If the source does not adequately supply the +5 V power, an external power
supply must be used.
• To verify if the source is providing power, connect a short HDMI cable from the
input device to the input of the equalizer. If the HDMI 101 Plus front panel LED
lights amber, the source is supplying power.
Setup
DDC Buffer
By default, the DDC buffer is bypassed. Some applications require that the DDC be
buffered when there is no picture on the display. This is not always an issue as it depends
on a combination of the source, display and cable length. To buffer the DDC, follow these
instructions.
1. Remove and keep the screws holding the cover to the base. There is one screw on the
front panel and two screws on each side. Set aside the cover and retain the screws.
CAUTION: Do not remove the screw on the back panel. This secures the internal
circuit board and does not attach the base to the cover.
2. Locate the two sets of jumpers next to
the HDMI input (shown in the figure to
the right).
3. By default, both sets of jumpers connect pins 2 and 3 (closest to the
HDMI input), bypassing the DDC buffer (see the diagram to the right).
To buffer the DDC, connect pins 1 and 2 (closest to the side of the
unit) on both jumpers.
4. Replace the cover, using the screws that were removed in step 1.
NOTE: When DDC channels are buffered, use an external power supply for best results.
Connecting for Long Cable Runs
To use the HDMI 101 Plus effectively, follow the recommendations in figure 5 for cable lengths
between the source device and HDMI 101 Plus and between the HDMI 101 Plus and the
display device. Position the HDMI 101 Plus at the end of the cable closest to the display.
HDMI Source
Long Cable
from Source
( 3' - 250' )
Short Cable
to Display
( < 15' )
Display
HDMI 101 Plus
Display
Figure 5. Optimum Cable Lengths between the Source, HDMI 101 Plus, and Display
Jumpers
Rear Panel
Front Panel HDMI Input
DDC Buffer
Bypassed Buffered
32
1
32
1
HDMI 101 Plus • Panel Features 6