Lumagen HDMI-HDMI Extender - Manual (Page 2)

© 2010 Lumagen, Inc. page 1 of 4 Rev 1.1
Introduction:
The Lumagen HDMI 1.4 HDMI-to-HDMI cable extender is designed
to allow more reliable real-world performance with longer cable
lengths than competing products. Some key features are:
- Maximum pixel clock rate up to 300 MHz (3 Gbps per channel)
- Active signal buffering for video and control (DDC) signals,
maximizes video, EDID, and HDCP-encryption-key, signal
integrity and reliable cable length.
- Programmable cable equalization allows system specific settings
with lower cable jitter than dynamic-cable-equalization solutions.
- External power supply eliminates power-supply-current induced
cable voltage-drop. This improves signal integrity.
- With HDMI 1.3 24 AWG input cable, the HDMI-HDMI extender
supports 1080p60 for a total distance of over 30 meters, under
nominal conditions.
- Supports all HDMI 1.4 3D formats and the HDMI 1.4 Audio-
Return-Channel (ARC).
The HDMI-HDMI extender has “static” input cable equalization (EQ).
The input-EQ for the HDMI input cable is selected manually using an
8-position rotary switch. Static cable-EQ has less signal jitter than
dynamic-cable-EQ solutions. This translates into the ability to support
longer cable lengths.
When long cables, or cable extenders, have issues in a given system,
Lumagen has found that often it is due to problems with the DDC
signals. Since the DDC signals are needed for HDCP and EDID
communication, Lumagen put active DDC buffers in the HDMI-HDMI
extender to maximize achievable cable length.
© 2010 Lumagen, Inc. page 2 of 4 Rev 1.1
Installation Instructions:
Insert the supplied 5-VDC power-supply into the HDMI-CAT6
Receiver’s 5-VDC jack, twisting it to make sure it seats all the way into
the case. Plug the power supply into the wall outlet. Connect the HDMI
cable for the source and the HDMI display going to the display. After
all audio and video connections are made turn on system power. Once
the system is turned on, the cable equaliztion setting may need to be
adjusted. See the Input Equalization Selection section for more
information.
Connection Block Diagram
Caution:
Ground loops are common even in well-designed systems -- even with
power conditioners. Power conditioners do not prevent the most
common ground loop issues, which are related to the ground prong on
equipment with three prong power cords, and the difference in the case
ground voltage potential between equipment. Given the longer distance
involved, ground loops are generally worse for the source to
display/projector connection. To help prevent damage, audio and video
cables should be connected before power. This allows the ground wires
of the audio/video cables to handle any ground loop current rather than
the audio and video signals themselves.
HDMI Source
HDMI Display
5VDC 5VDC
Input EQ
HDMI
OUT
VIDEO
ACTIVE HDMI
IN
HDMI
IN
Input EQ
0
4
See manual for details
Input Cable
Short (<3 m)
Long (>10 m)