Covid RBH-220 User manual
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
Page 1
Table of Contents
Introduction................................................................... 2
Features ..................................................................... 2
Package Contents .............................................................. 2
Technical Specifications .......................................................... 3
Operation Controls and Functions ..................................................4-5
EDID Modes .................................................................. 5
Preparing RS232 Cable .........................................................6-7
Firmware Update Process ......................................................8-10
RS232 Commands............................................................. 11
Application Examples ........................................................... 12
Connection Diagram............................................................ 13
Warranty & Safety Information ....................................................`14
Thank you for purchasing this product
For optimum performance and safety, please read these instructions carefully before connecting, operating or
adjusting this product. Please keep this manual for future reference.
Surge protection device recommended
This product contains sensitive electrical components that may be damaged by electrical spikes, surges,
electric shock, lightning strikes, etc. Use of surge protection systems is highly recommended in order to
protect and extend the life of your equipment.
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
Page 2
Introduction
This HDBaseT Receiver is used to receive an HDMI signal from over 230ft/70m then send to a compati-
ble display. It supports RS-232 pass-through so you can control the source or sink from either side up to
230ft/70m. It also supports audio extraction from the HDMI signal.
Features
•HDMI 1.4b & 2.0, HDCP 1.4 & 2.2 (HDMI 2.0 when paired with Covid 2.0 TX device)
•Video resolutions up to 4K2K@30Hz
•Audio up to 7.1 channels of High Definition audio pass through (LPCM, Dolby TrueHD, and DTS-HD
Master Audio).
•Supports HDMI High Bit Rate (HBR) audio pass through
•Extract audio supports LPCM 2CH
•POC (Power Over Cable) functionality is supported, either TX or RX is powered by a 24V@1A power
supply. POC Power consumption is less than 10W.
See the description 1
•Transfer Bidirectional RS-232 control signal together with the HDMI signal.
See the description 2
•Transmission distance: Over CAT6 cable
70 meters: 1080P @60Hz; 3D1080P@30Hz
40 meters: 1080P @60Hz; 1080P @120Hz
3D1080P@60Hz; 4K x 2K@60Hz
Package Contents
•HDMI Extender Receiver - 1PC
•24V1A DC Power Supply - 1PC
•Mounting Brackets - 2PCS
•3.5mm Audio Cable - 1PC
•3pin Screw Terminal Plug - 1PCS
•Operation Manual - 1PC
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
Page 3
Technical
HDMI Compliance HDMI 1.4b & HDMI 2.0
HDCP Compliance HDCP 2.2 and HDCP 1.4
Video Bandwidth [18Gbps]
Video Resolutions up to,4K2K@60Hz,1080P@120Hz, and 1080P 3D@60Hz
Color Space RGB, YCbCr 4:4:4, YCbCr 4:2:2
Color Depth 8-bit, 10-bit & 12-bit
HDMI Audio Formats
(Pass-through)
LPCM 2/5.1/7.1CH, Dolby Digital, DTS 5.1, Dolby Digital+, Dolby TrueHD, DTS-
HD Master Audio, Dolby Atmos, DTS:X
Extract Audio Formats LPCM 2CH
ESD Protection Human body model - +/- 8kV (air-gap discharge) & +/-4kV (contact discharge)
Mechanical
Housing Metal Enclosure
Color Black
Dimensions 65mm [W] x 115mm [D] x 17mm [H]
Weight 200g
Power Supply Input: AC100 - 240V 50/60Hz
Output: DC 24V/1A (US/EU standards, CE/FCC/UL certified)
Power Consumption 6W (Max)
Operation Temperature 32 - 104 °F / 0 - 40 °C
Storage Temperature -4 - 140°F / -20 - 60°C
Relative Humidity 20 - 90% RH (no condensation)
Technical Specifications
Connections
Inputs 1xDC Power In
1x HDBaseT In [RJ45]
1x RS232 [Screw Terminal]
Outputs 1x HDMI Type A [19-pin female]
1x Audio OUTPUT [3.5mm Stereo Mini-jack]
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
Page 4
Operation Controls and Functions
5.1 Transmitter Front and Rear Panel
1. Power LED: System power indicator.
2. DC 24V: Connect 24V/1A adapter to AC wall outlet for power supply.
3. HDBaseT In: HDBaseT signal input port. Connect HDBaseT transmitter with a category cable.
4. HDMI Out: HDMI output port.
5. Audio Out: Analog audio output from HDMI signal.
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
Page 5
6. Mode: The Update Mode and the RS-232 mode selector.
Update Mode: When the dial switch is set to update, port 7 is used to update or control the device.
RS-232 Mode: When the dial switch is set to RS232, port 7 is used for RS232 pass-thru communication.
7. RS-232: RS232 communication port that passes through from transmitter to receiver and receiver to
transmitter.
8. Connection Signal Indicator Lamp
•On (Solid): The Transmitter and Receiver are communicating.
•Flashing: The Transmitter and Receiver are not communicating properly.
•Off: The Transmitter and Receiver are not connected by a category cable.
9. Data Signal Indicator Lamp
•On (Solid) The HDMI signal is carrying HDCP.
•Flashing: The HDMI signal is not carrying HDCP.
•Off: No HDMI signal.
HDBaseT Receiver With Audio Extractor - RBH-220
EDID MODES
The RBH-220 can use an internal EDID from memory instead of the EDID provided by the display. Capturing
the EDID from the display is the default mode of operation of the RBH-220. This EDID will change based on
what display device is connected to the RBH-220. The internal EDID has been pre-loaded in case there is a
compatibility issue with the display EDID for the connected sources. To change the EDID mode, flip the mode
switch on the back of the device to update mode and send the command for setting the EDID mode from the
RS232 command table. Defualt system EDID support1080P.
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
If the cable is terminated on both sides, start by cutting off the end that will be used for connecting to the
unit. Then, strip the outer jacket of the cable back by about 1 inch like what is shown in Step 1 below. Once
the outer jacket is removed, you can optionally add heat shrink around the conductors and over the exposed
drain wire like in the picture of step 2. Next, strip the ends of the conductors back about 3/16” in order to
make good contact inside of the captive screw connector. The final step is to attach the captive screw connec-
tor to the end of the cable matching the conductors on the other side of the cable to what is shown in step 3,
use the connectors shown in the following figure as a reference if using DB9 male or female. Test the conduc-
tors with a multimeter to confirm termination.
Preparing RS232 Cable
What you will need:
• A two-conductor cable with ground terminated with DB9 connectors or not
• Wire strippers
• Screwdriver (flat head)
• 3.5mm captive screw connector with 3 positions (included with plate)
• Heat gun and heat shrink (optional)
• Multimeter (optional)
Depending on your setup, you will need an RS232 cable with terminal block on one end to connect to the unit
and either another terminal block or DB9 on the other side. The focus of this section will be on terminating
the terminal block side with the proper pinout because that is what is connected to the unit. The other end
of the cable is dependent on what the unit is connecting too, but all the information in this section will help to
get the proper pinout in any case. As a tip, if connecting to a computer without a serial port, a USB to serial
port converter can be used to communicate with RS232.
Page 6
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
NOTE:
When using the device for pass-through, keep in mind that the side (either Tx or RX) that is connected to the
device that the commands are getting sent to will require that the Tx and Rx pins get swapped around (serial
null modem wiring). This means pin 2 of the DB9 connector will connect to the Rx pin of the HDBaseT device
and pin 3 of the DB9 connector will connect to the Tx pin of the HDBaseT device.
Page 7
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
RBH-220 (Audio De-Embedded Receiver ) FW update process
1. First power down the unit and remove all the cables from the IO port.
2. Connect the Rs232 port and slide the “Mode” switch to “Update” position
3. Open up COMSIP firmware update program
4. Follow the sequence below on the upgrade program
1. Select the COM port,
2. Select MCU as SSOP28
3. Click the Connect tab.
4. Click the Open tab to select the FW file for update.
5. Click the Upgrade tab. The unit will begin sending 80 00 00 sequence in the TX:
123
4
5
Page 8
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
5. Once the 80 00 00 sequence begins, plug in the power to the Receiver and FW upgrade process
will begin.
Page 9
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
6. Wait till the program is verified and then click the Disconnect tab. Once this is done, power off and restart
the unit before use.
7. To verify the firmware version, please open up the serial terminal.
Make sure the Mode switch is at Update position.
Default baud rate 9600, data bits = 8, stop bits = 1, parity = none
Once this is confirmed, please remember to move the Mode switch to Rs232 for the unit pass though Rs232
feature.
Command Feedback
?fw<cr> (FW x.xx)
Page 10
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
RS232 Commands
Page 11
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
Description 1
POC (Power Over Cable) Application Example
Description 2
Bidirectional RS232 Control Application Example
Page 12
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
Connection Diagram 4K@60Hz
Page 13
HDBaseT Receiver With Audio Extractor - RBH-220
1723 W. 4th Street Tempe Arizona 85281
USER MANUAL
Page 14
To reduce the risk of electric shock, do not expose this product to rain or moisture.
Do not modify the wall plug. Doing so will void the warranty and safety features.
If the wall plug does not fit into your local power socket, hire an electrician to replace your
obsolete socket.
This equipment should be installed near the socket outlet and the device should be easily
accessible in the case it requires disconnection.
Safety Information
!
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Warranty
Parts and labor warranty time is three year and from the date of original shipment. This warranty shall be
void if a serial number has been removed from the product.
Upon determination of a legitimate defect covered by this warranty and at COVID’s sole discretion, user
should bear the transport cost during the warranty.
If product is out of warranty then repair charge is required. Out of warranty repairs will only be made after
cost has been approved by Customers and proper financial arrangements are made. Customer must cover
round trip shipment expenses.
HDBaseT Receiver With Audio Extractor - RBH-220
Table of contents
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