HDMI-4-SERM
HDMI-8-SERM
USER MANUAL
HDMI CATx
Multi-Port Extenders
HDMI-4/8-SERM FRONT VIEW
1. EDID Activity
2. Link of Local Monitor (HDMI-Out)
3. Power Indicator
1. DC 5V 3A Input
2. RJ-45 HDMI Outputs
3-4. Input EQ Indicator - On: Auto EQ,
Off: Manual EQ
5. RJ-45 Link Out (used for cascading)
6. Local HDMI Monitor Out
7. HDMI Source Input
8. Input EQ Adjustment (for long input HDMI
cable)
HDMI-4-SERM REAR VIEW
1. DC 5V 3A Input
2. RJ-45 HDMI Outputs
3-4. Input EQ Indicator - On: Auto EQ,
Off: Manual EQ
5. RJ-45 Link Out (used for cascading)
6. Local HDMI Monitor Out
7. HDMI Source Input
8. Input EQ Adjustment (for long input
HDMI cable)
HDMI-8-SERM REAR VIEW
Troubleshooting Q & A
There are green red dots on the local moni-
tor.
This is an EQ problem on the input source. Adjust
the EQ knob until the dots disappear
There is no image on the monitor.
Check the following:
Cable Length
Cable Quality (Low skew FTP cables perform
better than regular network cables.)
Adjust the EQ knob slowly until the image
appears.
The output of display has noise or occasion-
ally flashes.
Check cable distance.
Check cable quality.
Slowly adjust the EQ knob on the HDMI-1-R
until the image appears. It is best to use a
pattern generator instead of the source to
perform this adjustment.
Check for excessive RF interference in the
room.
© 2012 APANTAC LLC, All rights reserved
7556 SW BRIDGEPORT ROAD
PORTLAND, OR 97224, USA
PHONE +1 503 968 3000
FAX +1 503 389 7921
The content of this document is provided in connection
with Apantac LLC (“Apantac”) products. Apantac makes
no representation or warranties with respect to the accu-
racy or completeness of the contents of this publication
and reserves the right to make changes to specifications
and product descriptions at any time without notice.
