Instruction manual
TABLE OF CONTENTS
SAFETY PRECAUTIONS 
Please read all instructions before attempting to unpack, install or 
operate this equipment and before connecting the power supply. 
Please keep the following in mind as you unpack and install this 
equipment:
• Always follow basic safety precautions to reduce the risk of re, 
electrical shock and injury to persons.
• To prevent re or shock hazard, do not expose the unit to rain, 
moisture or install this product near water.
• Never spill liquid of any kind on or into this product.
• Never push an object of any kind into this product through any 
openings or empty slots in the unit, as you may damage parts 
inside the unit.
• Do not attach the power supply cabling to building surfaces.
• Use only the supplied power supply unit (PSU). Do not use the 
PSU if it is damaged.
• Do not allow anything to rest on the power cabling or allow any 
weight to be placed upon it or any person walk on it.
• To protect the unit from overheating, do not block any vents or 
openings in the unit housing that provide ventilation and allow 
for sufcient space for air to circulate around the unit. 
DISCLAIMERS
The information in this manual has been carefully checked and 
is believed to be accurate. We assume no responsibility for any 
infringements of patents or other rights of third parties which may 
result from its use.
We assume no responsibility for any inaccuracies that may be 
contained in this document. We make no commitment to update or 
to keep current the information contained in this document.
We reserve the right to make improvements to this document and/
or product at any time and without notice.
COPYRIGHT NOTICE
No part of this document may be reproduced, transmitted, 
transcribed, stored in a retrieval system, or any of its part translated 
into any language or computer le, in any form or by any means 
— electronic, mechanical, magnetic, optical, chemical, manual, or 
otherwise — without express written permission and consent
© Copyright 1997. All Rights Reserved.
Version 2.0 OCT 2014
TRADEMARK ACKNOWLEDGMENTS
All products or service names mentioned in this document may 
be trademarks of the companies with which they are associated.
CONTENTS 
INTRODUCTION .............................................................. 1
PACKAGE CONTENTS .................................................... 2
FEATURES ...................................................................... 2
SPECIFICATIONS ............................................................ 3
FRONT PANEL ..................................................................4 
REAR PANEL ...................................................................7
REMOTE CONTROL ....................................................... 9
EDID FUNCTION ............................................................ 13
TYPICAL APPLICATION ................................................ 16
IR EXTENDER ................................................................19
RS-232 SERIAL INTERFACE ......................................... 21
INTRODUCTION
The SB-5688LCM-CT is high-performance 8x8 matrix routing 
switcher with eight (8) HDMI inputs and supports simultaneously 
eight (8) HDMI and eight (8) CATx outputs. The SB-5688LCM-CT 
is based on HDBaseT technology and that supports full resolution 
HDMI Video with embedded audio, RS-232, and IR bi-directional, 
all over a single CATx cable. With a signal bandwidth of 340Mhz, 
there is no signal degradation. High Denition Digital signals can 
be selected and distributed to any 16 outputs simultaneously (8x 
channels  x2). The  Switcher  is  certied  as  being  fully  HDMI  and 
HDCP 2.2 compliant, HDMI V1.4a 3D formats, data rates up to 
6.75 Gbps. Supports UXGA/WUXGA/DVI 1920x1200 resolution 
to any HD displays. The SB-5688CT has one CAT6/CAT6a and 
HDMI connector for each output, effectively making this an 8x16 
switcher (same  signal on  both outputs).  (1) RJ-45  connection 
on each output extends the HDMI signal to remote location via 
HDBaseT CATx cable extend to HDBaseT Receiver. The EDID 
can  be  selected  between  eight  (8)  different  modes.  Control  is 
provided via Front panel push buttons, IR remote or via RS-232 or 
TCP/IP (not a web-browser). An RS-232 Windows GUI interface is 
provided for matrix routing.
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