GoMax Electronics CV-57KG Series User manual

HDMI extender over single cat.X
User Manual
To avoid EMI problem, strongly recommend to apply STP cable!
rev: 131025
Made in Taiwan
C
CV V- -5 57 7K KG G
The CV-57KG HDMI extender over single cat.X has been tested for conformance to safety regulations
and requirements, and has been certified for international use. However, like all electronic equipments, the
CV-57KG 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 .....................................................................................................................1
FEATURES..............................................................................................................................1
PACKAGE CONTENTS ..........................................................................................................1
SPECIFICATIONS...................................................................................................................2
PANEL DESCRIPTIONS.........................................................................................................3
Transmitting unit ►CV-57KG-TX...............................................................................3
Receiving unit ► CV-57KG-RX...................................................................................4
CONNECTION DIAGRAM.......................................................................................................5
HARDWARE INSTALLATION.................................................................................................6
EDID LEARNING.....................................................................................................................6
PIN DEFINITION .....................................................................................................................7
NOTICE....................................................................................................................................8
WARRANTY ............................................................................................................................9

1
INTRODUCTION
The CV-57KG HDMI extender over single cat.X boosts up your video/audio transmission distance
up to 60m (200ft) in HDTV 1080i format, 40m (130ft) in HDTV 1080p format, and 20m (65ft) in HDTV
1080p with 36-bit color depth. CV-57KG 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 Cat.5/5e/6 cable, users can readily extend 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 flexibility makes HDCP compliant DVD
players or PS3 transmit utmost high quality video and audio with a greater distance at the minimal cost,
when integrating several components apart.
The CV-57KG includes two units: transmitting unit CV-57KG-TX and receiving unit CV-57KG-RX.
The transmitting unit is used to capture the input HDMI/DVI signals and carry the signals via one cost
effective Cat.5/5e/6 cable. The receiving unit is responsible for equalizing the transmitted HDMI signal.
The transmission distance between the sending and receiving units can be up to 60m (200ft) at HD 720p
or 1080i; or 40m (130ft) at Full HD 1080p. With an 8-level equalization rotary control on the receiving unit,
users can adjust the equalization strength to the received HDMI signals accordingly, and therefore
optimize the transmission distance between source and destination.
FEATURES
●Support HDMI Deep Color & full 3D
●Extends the transmission up to 60m (200ft) from the HDMI source at HD 1080i or 720p 24-bit color
●Extends the transmission up to 40m (130ft) from the HDMI source at Full HD 1080p 24-bit color
●Extends the transmission length up to 20m (65ft) from the HDMI sources under Full HD resolution
(1080p at 36-bit color depth)
●HDCP 1.1 compliant
●Minimizes the cable skew by adjustable 8-level equalization control
●Pure unaltered uncompressed 7.1ch digital HDMI over Cat.5/5e/6 cable transmission
●DTS-HD and Dolby TrueHD high bit rate audio support
●Allows cascading
●Wall mounting housing design for easy and robust installation
●Perfectly integrated with other HDMI over CAT5 series products
PACKAGE CONTENTS
●1x CV-57KG [TX & RX] ●2x DC 5V 2A wall wart ●1x User Manual
The claimed transmission distance here is subject to the grade of installed cable(s), source device and
display.
For over CAT5/COAX transmission, the cable(s) has to be solid, not stranded. Any keystone jack along
the transmission path will kill the transmission performance significantly!
2
SPECIFICATIONS
Model Name
CV-57KG
Technical
CV-57KG[Tx]
CV-57KG[Rx]
Role of usage
Transmitter [TX]
Receiver [RX]
HDMI compliance
HDMI Deep Color & full 3D
HDCP compliance
Yes
Video bandwidth
Single-link 225MHz [6.75Gbps]
Video support
480i / 480p / 720p / 1080i / 1080p60 up to 36-bit color
Audio support
Surround sound [up to 7.1ch] or stereo digital audio
HDMI over Coax
transmission range
Full HD (1080p)-40m (130ft) [CAT.X]
HD (720p/1080i)-50m (165ft) [CAT.X]
Equalization
8-level digital control at RX
Input TMDS signal
1.2 Volts [peak-to-peak]
Input DDC signal
5 Volts [peak-to-peak, TTL]
ESD protection
[1] Human body model —±19kV [air-gap discharge] & ±12kV [contact discharge]
[2] Core chipset —±8kV
PCB stack-up
4-layer board [impedance control —differential 100Ω; single 50Ω]
Input
1x HDMI
1x RJ-45
Output
1x RJ-45
1x HDMI
HDMI connector
Type A [19-pin female]
RJ-45 connector
WE/SS 8P8C with 2 LED indicators
Rotary switch
Mode
Signal level
Mechanical
Housing
Metal enclosure
Dimensions
[L x W x H]
Model
91 x 60 x 26mm [3.6" x 2.4" x 1"]
Package
270 x 175 x 80mm [10.6" x 6.9" x 3.1"]
Carton
450 x 370 x 300mm [1'6" x 1'3" x 11.8"]
Weight
Model
200g [7oz]
196g [6.9oz]
Package
900g [2 lbs]
Fixedness
Wall-mounting case with screws
Power supply
5V 2A DC
Power consumption
4 Watt [max]
1.5 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]

3
PANEL DESCRIPTIONS
Transmitting unit ►CV-57KG-TX
Front 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
Rear Panel
3. +5V DC: Connect to 5V DC power supply
4. HDMI Signal OUT: Plug in a Cat.5/5e/6 cable that needs to be linked to the receiving unit
CV-57KG-RX
4
Receiving unit ► CV-57KG-RX
Front Panel
5. Signal Level: Adjust the 8-level signal equalization control to the received HDMI signals. The HDMI
signal level varies from 0 (strongest) to 7 (weakest) for respective transmission length from longest
possible range to short distance. Dial the Signal Level from 7 to 0 and stop turning the rotary switch
whenever the audio/video is playing normally. Inappropriate signal level setting may cause
overpowering issues that would shorten the product's life significantly!
6. HDMI OUT: Connect to a HDMI display with a HDMI male-male cable.
Rear Panel
7. +5V DC: Connect to 5V DC power supply unit.
8. HDMI Signal IN: Plug in a Cat-5/5e/6 cable that needs to be linked to the transmitting unit
CV-57KG-TX

5
CONNECTION DIAGRAM
6
HARDWARE INSTALLATION
1. Connect a HDMI or DVI source (such as a Blu-ray Disc player) to the transmitting unit CV-57KG-TX.
2. Connect a HDMI or DVI display (such as a LCD TV) to the receiving unit CV-57KG-RX.
3. Connect a Cat-5/5e/6 cable between the transmitting and receiving units.
4. Make sure this Cat-5/5e/6 cable is tightly connected and not loose.
5. Plug in 5V DC power supply unit to the power jack of the receiving unit CV-57KG-RX.
6. Plug in 5V DC power supply unit to the power jack of the transmitting unit CV-57KG-TX.
7. If you see flickering or blinking image on the display, please adjust the rotary control switch to improve
the cable skew. 0 stands for the strongest HDMI signal level for longest possible transmission length
while 7 stands for the weakest HDMI signal level for short transmission length. Please adjust the
signal level from 7 to 0 and stop turning the rotary switch whenever the audio/video is playing normally.
Inappropriate signal level setting may cause overpowering issue that would shorten the product life
significantly!
EDID LEARNING
1. Turn off CV-57KG-TX and disconnect the Cat.5/5e/6 between CV-57KG-TX and CV-57KG-RX.
2. Connect the HDMI display to “HDMI IN” on the CV-57KG-TX with a HDMI cable.
3. Set “MODE” on the transmitting unit CV-57KG-TX at 7.
4. Turn on the CV-57KG-TX.
5. The LED on the RJ45 of CV-57KG-TX will dim and light again, which indicates the EDID learning
procedure is complete.
6. Unplug the HDMI cable from the display and follow the instruction in [Hardware Installation] to set up
the CV-57KG and enjoy the experience.

7
PIN DEFINITION
HDMI
Type A (Receptacle) HDMI
Pin 1
TMDS Data2+
Pin 11
TMDS Clock Shield
Pin 2
TMDS Data2 Shield
Pin 12
TMDS Clock–
Pin 3
TMDS Data2–
Pin 13
NC
Pin 4
TMDS Data1+
Pin 14
Reserved (N.C. on device)
Pin 5
TMDS Data1 Shield
Pin 15
SCL
Pin 6
TMDS Data1–
Pin 16
SDA
Pin 7
TMDS Data0+
Pin 17
DDC/CEC Ground
Pin 8
TMDS Data0 Shield
Pin 18
+5V Power
Pin 9
TMDS Data0–
Pin 19
Hot Plug Detect
Pin 10
TMDS Clock+
CAT5 [RJ45]
8
NOTICE
1. When adjusting the signal level on the receiver unit, please dial the rotary control switch from 7 to 0
and stop turning the rotary switch whenever the audio/video is playing normally. Inappropriate signal
level setting may cause overpowering issue that would shorten the product life significantly!
2. If the DVI or HDMI device requires the EDID information, please use EDID Reader/Writer to retrieve
and provide DVI or HDMI display EDID information.
3. All HDMI over CAT5 transmission distances are measured using Belden 1583A CAT5e 125MHz UTP
cable and ASTRODESIGN Video Signal Generator VG-859C & VG-870B.
4. The transmission length is largely affected by the type of Cat-5/5e/6 cables, the type of HDMI sources,
and the type of HDMI display. The testing result shows solid UTP cables (usually in the form of 300m
[1,000ft] bulk cables) can transmit a lot longer signals than stranded UTP cables (usually in the form of
fixed length patch cords). Shielded STP cables are better suited than unshielded UTP cables. A solid
UTP Cat-5e cable shows longer transmission range than stranded STP Cat-6 cable. For long
extension applications, solid UTP/STP cables are the only viable choice.
5. EIA/TIA-568-B termination (T568B) for Cat-5/5e/6 cables is recommended.
6. To reduce the interference among the unshielded twisted pairs of wires in Cat-5/5e/6 cable, one can
use shielded STP cables to improve EMI problems, which is worsen in long transmission.
7. Because the quality of the CAT5/6 cables has the major effect on how long the transmission limit can
achieve and how good is the received picture quality, the actual transmission range is subject to one’s
choice of Cat-5/5e/6 cables. For desired resolutions greater than 1080i or 1280x1024, a Cat-6 cable is
recommended.
8. 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.

9
WARRANTY
The SELLER warrants the CV-57KG HDMI extender over single cat.X 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-57KG features and specifications is subject to
change without further notice.