Gefen EXT-HDMI-CAT5-145 - Manual (Page 13)

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Each 1:5 Splitter For HDMI Over CAT-5 receiver contains a Dip Switch bank
located on the underside of the unit. This bank of 4 Dip Switches are covered
with a piece of silver metallic tape. These Dip Switches will modify boost settings
and change the equalization mode.
EQUALIZATION MODES
Dip Switch 1 is used to select the equalization mode. There are 2 EQ modes
to select from. Auto Equalization (Dip Switch 1 = Off, default) will automatically
attempt to equalization the incoming signal and eliminate and digital noise that
may occur due to variances in cable skew. Manual Equalization (Dip Switch 1 =
ON) will allow the user to manually EQ the signal using the Trim Pot located on
the front panel of the receiver. By default, Auto Equalization is set and is effective
for CAT cable runs of up to 130 feet. Distances greater than 130 feet should be
manually equalized. Use the table below for quick reference of the EQ Dip Switch
modes.
Receiver Auto EQ Dip Switch Settings
Setting Switch 1 Switch 2
Manual EQ ON Not Used
Auto EQ (Default) OFF Not Used
BOOST MODES
Dip Switches 3 and 4 are used to specify the boost strength of the signal from the
1:5 Splitter For HDMI Over CAT-5 sender. This feature will boost the signal when
long distances of cable are used and will also help the signal reach the receiver
when low quality cable is used. There are not set distance rules in regards to this
setting (due to the variances in cable quality), so it is recommended that the user
try all settings, starting with no boost, when troubleshooting issues. Please refer
to the table below for the 4 different Dip Switch combinations.
Receiver Boost Dip Switch Settings
Setting Switch 3 Switch 4
No Boost (Default) OFF OFF
Medium Boost OFF ON
High Boost ON OFF
Very Low Boost ON ON
EQUALIZATION & BOOST SETTINGS