Gomax CV-57KH User manual

HDMI extender over single cat.X
Direct Plug-in Extender
User Manual
To avoid EMI issue, complete STP Cat6 cable is strongly recommended!
rev: 200211
Made in Taiwan
C
CV V- -5 57 7K KH H
Safety and Notice
The CV-57KH HDMI extender over single cat.X Direct Plug-in Extender has been tested for conformity
to safety regulations and requirements, and has been certified for international use. However, like all
electronic equipments, the CV-57KH should be used with care. Please read and follow the safety
instructions to protect yourself from possible injury and to minimize the risk of damage to the unit.
●Follow all instructions and warnings marked on this unit.
●Do not attempt to service this unit yourself, except where explained in this manual.
●Provide proper ventilation and air circulation and do not use near water.
●Keep objects that might damage the device and assure that the placement of this unit is on a stable
surface.
●Use only the power adapter and power cords and connection cables designed for this unit.
●Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to the device before
cleaning.
TABLE OF CONTENTS
INTRODUCTION................................................................................................................2
FEATURES ........................................................................................................................2
PACKAGE CONTENTS......................................................................................................2
SPECIFICATIONS..............................................................................................................3
PANEL DESCRIPTIONS ....................................................................................................4
Transmitting unit ►CV-57KH-TX........................................................................4
Receiving unit ► CV-57KH-RX ...........................................................................4
CONNECTION DIAGRAM..................................................................................................5
EDID Learning....................................................................................................................5
NOTICE..............................................................................................................................6
WARRANTY.......................................................................................................................7

2
INTRODUCTION
The CV-57KH HDMI extender over single cat.X Direct Plug-in Extender boosts up your
video/audio transmission distance up to 25m (80ft) in HDTV 1080i format. CV-57KH also supports the
most advanced 3D video format complaint with HDMI specification and therefore guarantees the highest
3D video compatibility on the market. With only one cost effective LAN cable, users can directly plug the
receiver in to HDTV sources from DVD players, Blu-ray Disc player, PS3, PC, and any other kinds of
sources compliant with TMDS to distant display monitors including HDMI/DVI enabled TV sets or LCD PC
monitors. This cost effective flexibility makes HDCP compliant DVD players or PS3 transmit high quality
video and audio with a greater distance at the minimal cost, when integrating several components apart.
The CV-57KH includes two units: transmitting (CV-57KH-TX) and receiving (CV-57KH-RX) units.
The transmitting unit is used to capture the input HDMI/DVI signal and carry the signals through one
RJ-45 connector into one cost effective Cat-5/5e/6 cable. The transmission distance between the sending
and receiving units can be up to 25m (80ft) under HD (720p/1080i) or 15m (50ft) under Full HD (1080p).
With direct plug-in to the HDTV, users do not need to have to find a power outlet for the traditional HDMI
over CAT5 receiver and can save an HDMI cable with ease of use.
FEATURES
●Support HDMI Deep Color & full 3D
●Extend the transmission length up to 25m (80ft) from the HDMI sources under HD resolution (1080i or
720p)
●Extend the transmission length up to 15m (50ft) from the HDMI sources under Full HD resolution
(1080p)
●HDCP compliant
●Pure unaltered uncompressed 7.1ch digital HDMI over UTP/STP cable transmission
●Allows direct plug-in to the HDMI displays
●Perfectly integrated with other HDMI over CAT5 series products
PACKAGE CONTENTS
●1x CV-57KH [TX & RX]
●1x 5V power adapter
●1x User Manual
The length depends on the characteristics and quality of the cables. Higher resolutions and
longer transmission distances require low skew cables (<25ns/100m) for best performance.
Unshielded CAT6 with metal RJ-45 connectors is recommended.
3
SPECIFICATIONS
Model Name
CV-57G
CV-57KH
Technical
CV-57G-TX
CV-57G-RX
aka CV-735
CV-57KH-TX
aka CV-57KG-TX
CV-57KH-RX
aka CV-715s
Role of usage
Transmitter [TX]
Receiver [RX]
Transmitter [TX]
Receiver [RX]
HDMI compliance
HDMI Deep Color & 3D
HDMI Deep Color & full 3D
HDCP compliance
Yes
Video bandwidth
Single-link 225MHz [2.25Gbps]
Video support
480i / 480p / 720p / 1080i / 1080p60 up to 36-bit color
Transmission
over LAN
Full HD
[1080p]
40m [130ft] for CAT5e
50m [165ft] for CAT6
15m [50ft] for CAT5e
18m [65ft] for CAT6
HD
[1080i/720p]
Audio support
50m [165ft] for CAT5e
60m [200ft] for CAT6
25m [80ft] for CAT5e
30m [100ft] for CAT6
Equalization
Surround sound [up to 7.1ch) or stereo digital audio
Input TMDS signal
8-level digital control at RX
8-level digital control at RX
Input DDC signal
1.2 Volts [peak-to-peak]
ESD protection
5 Volts [peak-to-peak, TTL]
PCB stack-up
Human body model —±15kV [air-gap discharge] & ±8kV [contact discharge]
Input
4-layer board [impedance control —differential 100; single 50]
Output
1x HDMI
1x RJ-45
1x HDMI
1x RJ-45
HDMI connector
1x RJ-45
1x HDMI
1x RJ-45
1x HDMI
RJ-45 connector
Type A [19-pin female]
Rotary switch
WE/SS 8P8C with 2 LED indicators
Audio support
Mode
EQ
Mode
None
Mechanical
CV-57G-TX
CV-57G-RX
aka CV-735
CV-57KH-TX
aka CV-57KG-TX
CV-57KH-RX
aka CV-715s
Housing
Metal enclosure
Metal enclosure
Metal enclosure
Plastic molding
Dimensions
[L x W x H]
Model
[TX/RX] 91 x 60 x 26mm [3.6” x 2.4” x 1.0”]
[TX] –93 x 60 x 25mm [3.7” x 2.4” x 1”]
[RX] –45 x 25 x 22mm [1.8” x 1” x 0.9”]
Package
270 x 175 x 80mm [10.6” x 6.9” x 3.1”]
Carton
450 x 370 x 300mm [1’5.7” x 1’2.6” x 11.8”]
Weight
Model
200g [7.1 oz]
340g [12 oz]
Package
900g [2 lbs]
685g [1.5 lbs]
Fixedness
Wall-mounting case
Power supply
5V 2A DC
5V 2A DC
5V 2A DC
None
Power consumption
4 Watt [max]
1.5 Watt [max]
1 Watt [max]
1 Watt [max]
Operation temperature
0~40C [32~104F]
Storage temperature
-20~60C [-4~140F]
Relative humidity
20~90% RH [no condensation]

4
PANEL DESCRIPTIONS
Transmitting unit ►CV-57KH-TX
Front Panel
Rear Panel
1. EDID MODE:
0 = [Video] –2D / Full-HD 24bit 1080p@60 [Audio] –up to 7.1ch surround sound
1 = [Video] –2D / Full-HD 24bit 1080p@60 [Audio] –up to 2.0ch surround sound
2 = [Video] –2D / Full-HD 36bit 1080p@60 [Audio] –up to 7.1ch surround sound
3 = [Video] –2D / Full-HD 36bit 1080p@60 [Audio] –up to 2.0ch surround sound
4 = [Video] –2D / HD 24bit (1080p@30)(1080i@60)(720p@60)
[Audio] –up to 7.1ch surround sound
5 = [Video] –2D / HD 24bit (1080p@30)(1080i@60)(720p@60)
[Audio] –up to 2.0ch surround sound
6 = [Video] –3D / Full-HD 36bit (1080p@60) [Audio] –up to 2.0ch surround sound
7 = [EDID Learning Mode] –learns EDID from the display
2. HDMI IN: Connect to a HDMI source with a HDMI male-male cable
3. +5V DC: Connect to a 5V DC power supply unit
4. HDMI Signal OUT: Plug in a Cat.5/5e/6 cable that needs to be linked to the receiving unit CV-57KH-RX
Receiving unit ► CV-57KH-RX
5. HDMI output: Connect to a HDMI display with a
HDMI male-male cable here
6. HDMI Signal IN: Plug in a Cat-5/5e/6 cable that
needs to be linked to the receiving unit
CV-57KH-RX.
5
CONNECTION DIAGRAM
1. Connect your HDMI/DVI source (such as a Blu-ray Disc player) to the transmitting unit CV-57KH-TX.
2. Plug-in the receiving unit CV-57KH-RX to your HDMI display (such as a HDTV or a projector).
3. Connect your CAT-5/5e/6 LAN cable between the transmitting and receiving units.
4. Make sure your CAT-5/5e/6 LAN cable is tightly connected and not loose.
5. Plug in 5V DC power cord to the power jack of the transmitting unit CV-57KH-TX.
EDID Learning
1. Turn on CV-57KH-TX.
2. Turn the Mode of CV-57KH-TX counterclockwise from 0 (for surround sound) or 1 (for stereo) to 7.
3. Use a HDMI cable to connect CV-57KH-TX & the display (better not connect to video source). The
LED on the RJ-45 of CV-57KH-TX will dim and light again, which indicates the EDID learning process
is finished.
4. Turn the Mode of CV-57KH-TX clockwise from 7 to 0 (for surround sound) or 1 (for stereo). The most
important thing is don’t let the rotary arrow pass through 6 which will erase the EDID just learned and
restore to default EDID.
5. Connect CV-57KH-TX and the video source through a HDMI cable and enjoy the experience.

6
NOTICE
1. If the DVI or HDMI device requires the EDID information, please use EDID Reader/Writer to retrieve
and provide DVI/HDMI EDID information.
2. All HDMI over CAT5 transmission distances are measured using Belden 1583A CAT5e 125MHz LAN
cable and ASTRODESIGN Video Signal Generator VG-859C.
3. The transmission length is largely affected by the type of LAN cables, the type of HDMI sources, and
the type of HDMI display. The testing result shows solid LAN cables (usually in bulk cable 300m or
1000ft form) can transmit a lot longer signals than stranded LAN cables (usually in patch cord form).
Shielded STP cables are better suit than unshielded UTP cables.A solid UTP CAT5e cable shows
longer transmission length than stranded STP CAT6 cable. For long extension users, solid LAN
cables are your only choice.
4. EIA/TIA-568-B termination (T568B) for LAN cables is recommended for better performance.
5. To reduce the interference among the unshielded twisted pairs of wires in LAN cable, you can use
shielded LAN cables to improve EMI problems, which is worsen in long transmission.
6. Because the quality of the LAN cables has the major effects in how long transmission distance will be
made and how good is the received display, the actual transmission length is subject to your LAN
cables. For resolution greater than 1080i or 1280x1024, a CAT6 cable is recommended.
7. If your HDMI display has multiple HDMI inputs, it is found that the first HDMI input [HDMI input #1]
generally can produce better transmission performance among all HDMI inputs.
7
WARRANTY
The SELLER warrants the CV-57KH HDMI extender over single cat.X Direct Plug-in Extender to
be free from defects in the material and workmanship for 1 year from the date of purchase from the
SELLER or an authorized dealer. Should this product fail to be in good working order within 1 year
warranty period, The SELLER, at its option, repair or replace the unit, provided that the unit has not been
subjected to accident, disaster, abuse or any unauthorized modifications including static discharge and
power surge. This warranty is offered by the SELLER for its BUYER with direct transaction only. This
warranty is void if the warranty seal on the metal housing is broken.
Unit that fails under conditions other than those covered will be repaired at the current price of parts
and labor in effect at the time of repair. Such repairs are warranted for 90 days from the day of reshipment
to the BUYER. If the unit is delivered by mail, customers agree to insure the unit or assume the risk of loss
or damage in transit. Under no circumstances will a unit be accepted without a return authorization
number.
The warranty is in lieu of all other warranties expressed or implied, including without limitations, any
other implied warranty or fitness or merchantability for any particular purpose, all of which are expressly
disclaimed.
Proof of sale may be required in order to claim warranty. Customers outside Taiwan are responsible
for shipping charges to and from the SELLER. Cables and power adapters are limited to a 30 day
warranty and must be free from any markings, scratches, and neatly coiled.
The content of this manual has been carefully checked and is believed to be accurate. However, The
SELLER assumes no responsibility for any inaccuracies that may be contained in this manual. The
SELLER will NOT be liable for direct, indirect, incidental, special, or consequential damages resulting
from any defect or omission in this manual, even if advised of the possibility of such damages. Also, the
technical information contained herein regarding the CV-57KH features and specifications is subject to
change without further notice.