CHE-HDBT250 - AV Transmitter Comprehensive - Free user manual and instructions

Product Type	HDBaseT HDMI Extender Kit (Transmitter & Receiver)
Brand	Comprehensive
Model	CHE-HDBT250
Video Bandwidth	18 Gbps
Maximum Resolution	4K2K@60Hz 4:4:4 (8-bit), 4K2K@60Hz 4:2:2/4:2:0 (10/12-bit), 1080p@60Hz
HDCP Compliance	HDCP 2.2 / HDCP 1.4
Transmission Distance (Cat5e/6)	Up to 394 ft (120 m) for 4K, up to 492 ft (150 m) for 1080p
Audio Support	LPCM 2.0/2.1/5.1/6.1/7.1, Dolby Digital, Dolby TrueHD, Dolby Digital Plus, DTS-ES, DTS-HD Master, DTS-HD HRA, DTS-X
Analog Audio Output	Yes, 3.5 mm stereo (PCM 2.0)
Loop Output	HDMI loop out on transmitter
HDR Support	HDR, HDR10+, Dolby Vision, HLG
Control Pass-through	Bi-directional IR, RS-232, CEC
Power over Cable (PoC)	Yes, power either transmitter or receiver, the other unit gets power via Cat5e/6
Power Supply	DC 24V/1A (locking connector), Input AC 100-240V 50/60Hz
Power Consumption	9.36 W (total system)
Dimensions (each unit)	140 mm (W) x 65 mm (D) x 18 mm (H)
Weight (transmitter)	160 g
Weight (receiver)	155 g
Housing Material	Metal enclosure
Color	Black
Operating Temperature	32 - 104°F (0 - 40°C)
Storage Temperature	-4 - 140°F (-20 - 60°C)
ESD Protection	Human body model: ±8kV air-gap, ±4kV contact discharge
Package Contents	Transmitter & Receiver, IR Blaster cable (1.5m), IR Receiver cable (1.5m), 4 Mounting Ears, 2 Phoenix connectors, 24V/1A Locking Power Adapter, User Manual
Maintenance & Cleaning	Use a soft dry cloth to clean the metal enclosure. Avoid liquids and abrasive cleaners.
Safety	Use surge protection device; operate within specified temperature and humidity ranges.

Frequently Asked Questions - CHE-HDBT250 Comprehensive

What is the maximum distance supported for 4K and 1080p?

For 4K2K signals, the maximum distance is 394 ft (120 m). For 1080p signals, it extends to 492 ft (150 m) using a single Cat5e/6 cable.

Does this extender support Power over Cable (PoC)?

Yes, the CHE-HDBT250 supports PoC. You only need to power either the transmitter or the receiver with the included 24V/1A adapter; the other unit receives power through the Cat5e/6 cable.

Can I use this extender with HDR content?

Absolutely. It supports HDR, HDR10+, Dolby Vision, and HLG formats, ensuring high dynamic range video transmission.

What type of HDMI cable should I use between source and transmitter?

It is recommended to use Premium High Speed HDMI cables. For 4K60, keep HDMI cables under 16 ft (5 m); for 4K30 under 32 ft (10 m); for 1080p under 50 ft (15 m).

Does the extender pass through IR and RS-232 signals?

Yes, it supports bi-directional IR pass-through and RS-232 pass-through, allowing control of source and display devices from either end.

What is the difference between the loop output and the main output?

The transmitter has an HDMI loop output that mirrors the HDMI input locally, while the receiver outputs the extended HDMI signal to the display. Both can be used simultaneously.

Can I extract audio from the HDMI signal?

Yes, the receiver features a 3.5 mm stereo analog audio output that de-embeds PCM 2.0 audio from the HDMI stream.

How do I update the firmware?

Both transmitter and receiver have a SERVICE port (Mini-USB) for firmware updates. Refer to the manual or contact Comprehensive support for the latest firmware and update procedure.

What is the operating temperature range?

The extender operates reliably between 32°F and 104°F (0°C to 40°C) with a relative humidity of 20-90% (non-condensing).

Is the extender compatible with DVI sources?

Yes, it is DVI 1.0 compliant. You may need a DVI-to-HDMI adapter for the source, but video signals will be transmitted. Note that audio and HDCP may require HDMI.

USER MANUAL CHE-HDBT250 Comprehensive

Comprehensive Connectivity Company

CHE-HDBT250

Pro AV/IT HDBaseT™ 4K60 18G HDMI Extender Kit with Audio, RS232, IR, PoC up to 492ft

User Manual

VER 1.0

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, lighting strikes, etc. Use of surge protection systems is highly recommended in order to protect and extend the life of your equipment.

Table of Contents

1. Introduction...... 1
2. Features.... 1
3. Package Contents. 2
4. Specifications.... 2
5. Operation Controls and Functions...... 4

5.1 Transmitter Panel....4
5.2 Receiver Panel. 5
5.3 IR Pin Definition....6

1. Application Example......8

1. Introduction

The CHE-HDBT250 HDBaseT HDMI Extender can extend high-definition video / audio signals, RS-232, bi-directional IR, and the distance is up to 492ft / 150 meters between transmitter and receiver via a single Cat5e/6 cable. It supports resolution up to 4K2K@60Hz 4:4:4, 18Gbps and HDCP 2.2. One HDMI loop port is available for output. It also supports de-embedded audio for L/R audio output and PoC function. In addition, the CHE-HDBT250 is equipped with two-way IR pass-through which allows for source and display control.

This CHE-HDBT250 includes two units: transmitter unit and receiver unit. The transmitter unit is responsible for capturing HDMI input signal and carrying the signal via one cost effective Cat5e/6 cable, and transmitting / emitting IR control signals. The receiver unit is responsible for receiving the HDMI signal and transmitting / emitting IR control signal.

The CHE-HDBT250 offers the most convenient solution for HDMI extension via a single Cat5e/6 with long distance capability, and is the perfect solution for any application.

2. Features

☆ HDCP 2.2 / HDCP 1.4 and DVI 1.0 compliant
☆ Supports 18Gbps video bandwidth
The maximum extended transmission distance via a single Cat5e/6 cable: 394ft / 120 meters for 4K2K signal; 492ft / 150 meters for 1080P signal
☆ Supports one HDMI loop output on the transmitter
☆ De-embedded audio to analog stereo output on receiver
☆ With bi-directional IR, RS-232 and CEC pass-through
HDR, HDR10+, Dolby Vision and HLG function supported
☆ Supports PoC (Power over Cable) function
☆ Compact design for easy and flexible installation

3. Package Contents

Qty	Item
1	CHE-HDBT250 (Transmitter & Receiver kit)
1	IR Blaster cable (1.5 meters)
1	20~60KHz IR Receiver cable (1.5 meters)
4	Mounting Ear
2	3-pin Phoenix connector
1	24V/1A Locking Power adapter
1	User Manual

4. Specifications

Technical
HDCP Compliance	HDCP 2.2 / HDCP 1.4
Video Bandwidth	18Gbps
Video Resolution	4K2K 50/60Hz 4:4:44K2K 50/60Hz 4:2:24K2K 50/60Hz 4:2:04K2K 30Hz 4:4:41080p, 1080i, 720p, 720i, 480p, 480iAll HDMI 3D TV formatsAll PC resolutions including 1920 x 1200
Color Space	RGB / YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0
Color Depth	8/10/12-bit (1080P60Hz, 4K30Hz, 4K60Hz YCbCr4:2:2/4:2:0)8-bit (4K60Hz 4:4:4 )
HDMI Audio Formats	LPCM 2.0/2.1/5.1/6.1/7.1, Dolby Digital, DolbyTrueHD, Dolby Digital Plus(DD+), DTS-ES, DTSHD Master, DTS HD-HRA, DTS-X
L/R Audio Formats	PCM 2.0
ESD Protection	Human body model — ±8kV (Air-gap discharge) &±4kV (Contact discharge)

Connection
Transmitter	Inputs: 1x HDMI Type A [19-pin female]Outputs: 1x HDMI Type A [19-pin female]1x HDBT OUT [RJ45, 8-pin female]Control: 1x IR IN [3.5mm Stereo Mini-jack]1x IR OUT [3.5mm Stereo Mini-jack]1x RS-232 [Phoenix jack]1x SERVICE [Mini-USB, Update port]
Receiver	Inputs: 1x HDBT IN [RJ45, 8-pin female]Outputs: 1x HDMI Type A [19-pin female]1x AUDIO OUT [3.5mm Stereo Mini-jack]Control: 1x IR IN [3.5mm Stereo Mini-jack]1x IR OUT [3.5mm Stereo Mini-jack]1x RS-232 [Phoenix jack]1x SERVICE [Mini-USB, Update port]
Mechanical
Housing	Metal Enclosure
Color	Black
Dimensions	Transmitter / Receiver:140mm [W] x 65mm [D] x 18mm [H]
Weight	Transmitter: 160g, Receiver: 155g
Power Supply	Input: AC 100 - 240V 50/60HzOutput: DC 24V/1A (Locking connector)
Power Consumption	9.36 W
Operating Temperature	32 - 104°F / 0 - 40°C
Storage Temperature	-4 - 140°F / -20 - 60°C
Relative Humidity	20 - 90% RH (no condensation)
Resolution / Distance
4K2K	394ft / 120M
1080P	492ft / 150M
Resolution / Cable Length	4K60 - Feet / Meters	4K30 - Feet / Meters	1080P60 - Feet / Meters
HDMI IN / OUT	16ft / 5M	32ft / 10M	50ft / 15M
The use of “Premium High Speed HDMI” cable is highly recommended.

5. Operation Controls and Functions

5.1 Transmitter Panel

No.	Name	Function Description
1	Power LED	Red LED indicates that the transmitter is powered on.
2	SERVICE port	Firmware update port.
3	DC 24V	DC 24V/1A power supply input port.Note that the extender supports PoC function, it means that either transmitter or receiver is powered on by 24V/1A power adapter, the other one doesn't need power supply.
4	HDBT OUT	RJ45 connector for connecting the HDBT IN port of receiver with a CAT 5e/6 cable.
5	Connection Signal Indicator lamp	Illuminating: Transmitter and Receiver are in good connection status.Flashing: Transmitter and Receiver are in poor connection status.Dark: Transmitter and Receiver are not connected.
6	Data Signal Indicator lamp	Illuminating: HDMI signal with HDCP.Flashing: HDMI signal without HDCP.Dark: No HDMI signal.
7	HDMI OUT	HDMI loop output for display.
8	HDMI IN	HDMI source input.
9	IR IN	IR input port for receiving the signal of IR remote.
10	IR OUT	IR output port for control of source device. This IR output signal is from the IR IN port of receiver.
11	RS-232	3-pin Phoenix connector for RS-232 command transmission. The RS-232 command will pass-through from transmitter to receiver or from receiver to transmitter.

5.2 Receiver Panel

No.	Name	Function Description
1	Power LED	Red LED indicates that the receiver is powered on.
2	SERVICE port	Firmware update port.
3	DC 24V	DC 24V/1A power supply input port.Note that the extender supports PoC function, it means that either transmitter or receiver is powered on by 24V/1A power adapter, the other one doesn't need power supply.
4	HDBT IN	RJ45 connector for connecting the HDBT OUT port of transmitter with a CAT 5e/6 cable.
5	Connection Signal Indicator lamp	Illuminating: Transmitter and Receiver are in good connection status.Flashing: Transmitter and Receiver are in poor connection status.Dark: Transmitter and Receiver are not connected.
6	Data Signal Indicator	Illuminating: HDMI signal with HDCP.Flashing: HDMI signal without HDCP.Dark: No HDMI signal.
7	HDMI OUT	HDMI output for display.
8	AUDIO OUT	3.5mm stereo connector for analog audio output.
9	IR IN	IR input port for receiving the signal of IR remote.
10	IR OUT	IR output port for control of display device. This IR output signal is from the IR IN port of transmitter.
11	RS-232	3-pin Phoenix connector for RS-232 command transmission. The RS-232 command will pass-through from transmitter to receiver or from receiver to transmitter.

5.3 IR Pin Definition

IR Receiver and Blaster pin's definition is as below:

Close-up of a black audio cable with a separate connector (no text or symbols visible)

IR RECEIVER

Two black cables with metallic connectors, one open and one closed (no text or symbols visible)

IR BLASTER

The following is IR system diagram about IR cable use method.

Note: When the angle between the IR receiver and the remote control is ± 45^ , the transmission distance is 0-5 meters; when the angle between the IR receiver and the remote control is ± 90^ , the transmission distance is 0-8 meters.

6. Application Example

graph TD
    A["Transmitter"] --> B["DC 24V"]
    A --> C["HDBT OUT"]
    A --> D["HDMI OUT"]
    A --> E["HDMI IN"]
    A --> F["IR IN"]
    A --> G["IR OUT"]
    A --> H["TN + TN 100 222"]
    A --> I["Controller"]
    J["Receiver"] --> K["DC 24V"]
    J --> L["HDBT IN"]
    J --> M["H T"]
    J --> N["AUDIN OUT"]
    J --> O["IR IN"]
    J --> P["IR OUT"]
    Q["Power Supply"] --> R["+"]
    S["CAT 5e/6 cable"] --> T["UHDTV"]
    U["IR Blaster"] --> V["IR Receiver"]
    W["IR Blaster"] --> X["IR Receiver"]
    Y["UHDTV"] --> Z["2.0 Speakers"]
    style A fill:#f9f,stroke:#333
    style J fill:#ccf,stroke:#333
    style U fill:#cfc,stroke:#333
    style W fill:#fcc,stroke:#333
    style Y fill:#cff,stroke:#333

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