Covid EHB-250-W User manual

1723 W. 4th Street Tempe Arizona 85281
P: 800.638.6104 | F: 480.966.6728 | E: [e-mail] | www.covid.com
USER MANUAL v 1.0
EHB-250-W
Back View
Back View

1723 W. 4th Street Tempe Arizona 85281
P: 800.638.6104 | F: 480.966.6728 | E: [e-mail] | www.covid.com
USER MANUAL v 1.0
EHB-250-W
Page 1
Table or Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Features ...........................................................................................2
Package............................................................................................2
Specications ......................................................................................3
Operation Controls & Functions ...................................................................4-5
Descriptions........................................................................................6
Application Example ...............................................................................7
Warranty ..........................................................................................8
Safety Information..................................................................................8

1723 W. 4th Street Tempe Arizona 85281
P: 800.638.6104 | F: 480.966.6728 | E: [e-mail] | www.covid.com
USER MANUAL v 1.0
EHB-250-W
Page 2
Introduction
This HDBaseT transmitter extends HDMI over a single CAT5e/6/6A cable transmitting 18Gbps
4K2K@50/60Hz (4:4:4) up to 132ft/40m and 4K2K@50/60Hz (4:2:0) and 4K30Hz (4:4:4), or 1080P up to
230ft/70m. This product oers support for one independent analog audio, one way RS232 signal pass-
through with HDMI and USB unidirectional signal transmission. This powerful product combo is perfect
for classrooms and meeting room applications.
Features
• HDMI 1.4b, HDCP 2.2 / HDCP 1.4
• Resolutions up to 2160p@60Hz (4K-18G)
• HDBaseT over a single CAT 6/6A cable up to 230ft/70m distance at 1080p or 132/40m distance at
4K60
• One HDMI input, 1 Gang US Decora Wall Plate
• Supports USB 2.0
• Supports HDR, CEC pass-through
See the description 1 on page 6
• 24V POC (Power Over Cable) function is supported, either TX or RX is powered by 24V1A power
supply, the another does not need power supply from the DC jack. POC Power consumption is less
than 12W.
See the description 2 on page 6
• Transfer Bidirectional RS-232 control signal together with the HDMI signal.
Package Contents
• HDMI Wall Plate Transmitter - 1PC
• HDBaseT Receiver - 1PC
• Phoenix connector (3 pins) - 1PCS
• Phoenix connector (2 pins) - 1PCS
• 24V/1A power adapter - 1PCS
• Cover plate - 1PCS
• Rack ears - 2PCS
• User Manual - 1PC

1723 W. 4th Street Tempe Arizona 85281
P: 800.638.6104 | F: 480.966.6728 | E: [e-mail] | www.covid.com
USER MANUAL v 1.0
EHB-250-W
Page 3
Technical
HDMI Compliance HDMI 2.0
HDCP Compliance HDCP 2.2
Video Bandwidth 18Gbps
Video Resolutions 4K2K@50/60Hz 4:4:4, 4K2K@30Hz 4:4:4 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 LPCM, Dolby Digital/Plus/EX, Dolby True HD, DTS, DTS-EX,DTS-96/24, DTS High
Res, DTS-HD Master Audio, DSD
Analog Audio Formats LPCM 2CH, LPCM 5.1, Dolby Digital 2/5.1CH, DTS
2/5.1CH
ESD Protection Human body model - +/- 8kV (air-gap discharge) & +/-4kV (contact discharge)
Mechanical
Housing Metal Enclosure
Color TX: White-Front Panel, Black-Rear Case, RX: Black
Dimensions TX: 103.5mm [W] x 46mm [D] x 30mm [H]
RX: 140mm [W] x 75mm [D] x 23mm [H]
Weight TX: 163g, RX: 200g
Power Supply Input: AC100 - 240V 50/60Hz, Output: DC 24V/1A
(US/EU standards, CE/FCC/UL certied)
Power Consumption 12W (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
Transmitter Inputs: 1x HDMI Type A [19-pin female]
1x AUDIO IN [3.5mm earphone]
1x USB [USB-B]
1x RS-232 [3-pin phoenix ]
1x DC 24V/GND [2-pin phoenix ]
Output: 1x HDBaseT OUT [RJ45]
Receiver Inputs:1x HDBaseT IN [RJ45]
1x DC 24V [locking power]
Outputs: 1x HDMI Type A [19-pin female]
1x AUDIO OUT [3.5mm earphone]
1x RS-232 [3-pin phoenix]
2x USB [USB-A]

1723 W. 4th Street Tempe Arizona 85281
P: 800.638.6104 | F: 480.966.6728 | E: [e-mail] | www.covid.com
USER MANUAL v 1.0
EHB-250-W
Page 4
Front Panel Transmitter
1. HDMI IN: Connect to HDMI source devices such as Blu-ray or PS4 player.
2. ACTIVE: Green LED input signal indicator. When the HDMI port has a signal input, the light is on.
Otherwise, the light is o.
3. AUDIO IN: Analog audio input port.
4. USB: Connect to PC or other USB host.
Operation Controls and Functions
Back Panel Transmitter
1. RS-232: Use the phoenix jack for connect PC or control system to transmit RS-232 commands.
2. HDBaseT OUT: HDBaseT output port. Connect HDBaseT receiver with an UTP cable.
3. DC 24V: Use the phoenix jack to connect power supply. (Reserved power supply).

1723 W. 4th Street Tempe Arizona 85281
P: 800.638.6104 | F: 480.966.6728 | E: [e-mail] | www.covid.com
USER MANUAL v 1.0
EHB-250-W
Page 5
Receiver Panel
1. Power LED: When the power supply is normal, the indicator LED is on.
2. LINK LED: LINK LED indicator light.
3. HDCP LED: HDCP status indicator light.
4. ACT LED: When the device is working, the LED light is on.
5. F/W: Firmware update use.
6. HDBaseT IN: HDBaseT input port. Connect HDBaseT transmitter with an UTP cable.
7. HDMI OUT: HDMI output port. Connect to the display device such as TV or projector.
8. USB: Connect to USB device such as USB mouse or keyboard.
9. AUDIO OUT: Analog audio input port.
10. RS-232: Use the phoenix jack to connect PC or control system to transmit RS-232 commands.
11. DC 24V: Connect 24V/1A adapter to AC wall outlet for power supply.

1723 W. 4th Street Tempe Arizona 85281
P: 800.638.6104 | F: 480.966.6728 | E: [e-mail] | www.covid.com
USER MANUAL v 1.0
EHB-250-W
Page 6
Description 1
POC (Power Over Cable) Application Example
Description 2
Bidirectional RS-232 Control Application Example

1723 W. 4th Street Tempe Arizona 85281
P: 800.638.6104 | F: 480.966.6728 | E: [e-mail] | www.covid.com
USER MANUAL v 1.0
EHB-250-W
Page 7
Application Example
*Power typically needed on one end only
HDBaseT
HDMI Out
Display
Power In
Power In
Transmitter
RS232
Receiver
HDMI In
USB In
USB Out (x2)
Audio Out
Audio In
Interactive
Display Board

1723 W. 4th Street Tempe Arizona 85281
P: 800.638.6104 | F: 480.966.6728 | E: [e-mail] | www.covid.com
USER MANUAL v 1.0
EHB-250-W
Page 8
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 t 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 nancial arrangements are made. Customer
must cover round trip shipment expenses.