BG-EXH-8KF
48Gbps HDMI 2.1 over FIBER Extender (300m)
User Manual
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 2
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
TABLE OF CONTENTS
Statement 4
Safety Precaution 4
Surge protection device recommended 4
Introduction 5
Features 5
Packing List 5
Specifications 6
Operation Controls and Functions 8
IR PIN Definition 11
Connection Diagram 12
Troubleshooting 13
Tech Support 14
Limited Product Warranty Terms 14
Mission Statement 14
Copyright 14
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 3
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Statement
Please read these instructions carefully before connecting, operating, or configuring this
product. Please save this manual for future reference.
Safety Precaution
● To prevent damaging this product, avoid heavy pressure, strong vibration, or immersion
during transportation, storage, and installation.
● The housing of this product is made of organic materials. Do not expose to any liquid,
gas, or solids which may corrode the shell.
● Do not expose the product to rain or moisture.
● To prevent the risk of electric shock, do not open the case. Installation and maintenance
should only be carried out by qualified technicians.
● Do not use the product beyond the specified temperature, humidity, or power supply
specifications.
● This product does not contain parts that can be maintained or repaired by users.
Damage caused by dismantling the product without authorization from BZBGEAR is not
covered under the warranty policy.
● Installation and use of this product must strictly comply with local electrical safety
standards.
Surge protection device recommended
This product contains sensitive electrical components that electrical spikes, surges, electric
shocks, lightning strikes, etc may damage. Use of surge protection systems is highly
recommended to protect and extend the life of your equipment.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 4
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Introduction
The BG-EXH-8KF consists of transmitter and receiver modules that can extend HDMI 2.1
video and audio signals up to 300m/984ft using an OM4 fiber optic cable. It supports video
resolutions up to 8K@60Hz 4:2:0 or 4K@120Hz 4:4:4. Additionally, it features Auto Low
Latency and Variable Refresh Rate, along with 16 EDID presets. This versatile 8K over fiber
extender can be used in various scenarios such as pro AV installations, events, and other
similar applications.
Features
● Compliant with HDCP 2.3
● Support video bandwidth up to 48Gbps FRL and 18Gbps TMDS
● Video resolution up to 8K@60 4:2:0 12-bit, 4K@120Hz 4:4:4 12-bit, as specified in
HDMI 2.1
● Transmission distance can be up to 300m/984ft over an OM4 fiber optic cable
● Multi-mode fiber grade OM2/3/4 compliant
● Support EDID learning function on Transmitter
● Support analog audio de-embedding on Receiver
● VRR, ALLM, QMS, QFT, SBTM are supported
● HDR, HDR10, HDR10+, Dolby Vision, HLG pass-through are supported
● HDMI audio formats support Dolby Atmos, Dolby TrueHD, Dolby Digital Plus and
DTS-HD Master Audio
● Bi-directional IR & RS-232 pass-through
Packing List
● 1× 48Gbps HDMI over FIBER Extender (TX)
● 1× 48Gbps HDMI over FIBER Extender (RX)
● 1× IR Wideband Blaster Cable (1.5m)
● 1× IR Wideband Receiver Cable (1.5m)
● 2× 12V/1A Multinational Power Supply
● 2× Power Adapter
● 4× Mounting Ear
● 8× Machine Screw (KM3*4)
● 2× 3pin-3.5mm Phoenix Connector (male)
● 1× User Manual
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 5
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Specifications
Technical
HDMI Compliance
HDMI 2.1
HDCP Compliance
HDCP 2.3
Video Bandwidth
48Gbps FRL and 18Gbps TMDS
Video Resolution
Up to 8K@60 4:2:0 12-bit, 4K@120Hz 4:4:4 12-bit
Color Space
RGB 4:4:4, YCbCr_4:4:4, YCbCr_4:2:2, YCbCr_4:2:0
Color Depth
8/10/12-bit
Audio Formats
HDMI IN/OUT:
PCM 2.0, LPCM 5.1, LPCM 7.1,
(32K/44.1K/48K/88.2K/96K/176.4K/192K)
(16/20/24); Dolby Digital, Dolby Digital plus, Dolby TrueHD,
Dolby Atmos; DTS Surround, 96/24, ES, DTS Express, DTS-HD
HRA, DTS HD Master, DTS:X; AUDIO BREAKOUT:
L/R OUT: PCM 2.0CH
Optical Fiber Transmission
Distance
OM2: 40m/131ft
OM3: 200m/656ft
OM4: 300m/985ft
(over 850nm OM2/3/4 multi-mode fiber optic cable)
IR Level
IR IN: 12V; Level: 3.2.04.00219
IR OUT: 5V; Level: 3.2.04.00093
IR Frequency
Wideband 20K-60KHz
ESD Protection
IEC 61000-4-2: ±8kV (Air-gap discharge), ±4kV (Contact
discharge)
Connection
Transmitter
Input: 1× HDMI IN [Type A, 19-pin female]
1× IR IN [3.5mm audio jack]
Output: 1× HDMI OUT [Type A, 19-pin female]
1× IR OUT [3.5mm audio jack]
1× FIBER [LC]
Control: 1× RS-232 [3pin-3.5mm phoenix connector]
1× SERVICE [USB-C, update port]
Receiver
Input: 1× FIBER [LC]
1× IR IN [3.5mm audio jack]
Output: 2× HDMI OUT [Type A, 19-pin female]
1× IR OUT [3.5mm audio jack]
1× AUDIO OUT [3.5mm audio jack]
Control: 1× RS-232 [3pin-3.5mm phoenix connector]
1× SERVICE [USB-C, update port]
Mechanical
Housing
Metal Enclosure
Color
Black
Dimensions
Transmitter / Receiver: 175mm [W] × 100mm [D] × 30mm [H]
Weight
Transmitter: 496g; Receiver: 492g
Power Supply
Input: AC 100~240V 50/60Hz Output: DC 12V/1A
Power Consumption
Transmitter: 6.7W (Max); Receiver: 4.5W (Max)
Operating Temperature
0°C ~ 40°C / 32°F ~ 104°F
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 6
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Storage Temperature
-20°C ~ 60°C / -4°F ~ 140°F
Relative Humidity
20~90% RH (non-condensing)
Recommended HDMI Cable
Video
Resolution
8k
4K60
4K24
1080P
HDMI Cable
Length
(HDMI in /
out)
3m/10ft
(Ultra HDMI
2.1)
8m/26ft
12m/39ft
15m/49ft
The use of “Premium High-Speed HDMI” cables is highly recommended.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 7
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Operation Controls and Functions
Front Panels
Transmitter
No.
Name
Function
1
POWER LED
The red LED is on when the transmitter is powered on.
2
LINK LED
Connection signal indicator
● On: Transmitter and Receiver are connected and the
signal is detected.
● Blinking: The transmitter and Receiver are connected
but no signal is detected.
● Off: Transmitter and Receiver are not connected.
3
IN LED
The green LED is on when an input source is detected.
4
OUT LED
The green LED is on when a display device is connected.
5
AUDIO
SELECT
Switch between HDMI embedded audio and line-in audio.
6
EDID
Used for EDID setting.
[DIP]=1111: Copy sink EDID from HDMI OUT1 port on RX
(default)
[DIP]=1110: 1080P, 2.0CH
[DIP]=1101: 1080P, 5.1CH
[DIP]=1100: 1080P, 7.1CH
[DIP]=1011: 4K60(444)_HDR, 2.0CH
[DIP]=1010: 4K60(444)_HDR, 5.1CH
[DIP]=1001: 4K60(444)_HDR, 7.1CH
[DIP]=1000: 4K120(420)_HDR, 2.0CH
[DIP]=0111: 4K120(420)_HDR, 5.1CH
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 8
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
[DIP]=0110: 4K120(420)_HDR, 7.1CH
[DIP]=0101: FRL10G_8K_HDR, 2.0CH
[DIP]=0100: FRL10G_8K_HDR, 5.1CH
[DIP]=0011: FRL10G_8K_HDR, 7.1CH
[DIP]=0010: FRL12G_8K_HDR, 2.0CH
[DIP]=0001: FRL12G_8K_HDR, 5.1CH
[DIP]=0000: FRL12G_8K_HDR, 7.1CH
7
SERVICE
Firmware update and debug port.
Receiver
No.
Name
Function
1
POWER LED
The red LED is on when the transmitter is powered on.
2
LINK LED
Connection signal indicator
● On: Transmitter and Receiver are connected and the
signal is detected.
● Blinking: The transmitter and Receiver are connected
but no signal is detected.
● Off: Transmitter and Receiver are not connected.
3
OUT LED
The green LED is on when display 1 device is connected.
4
OUT LED
The green LED is on when display 2 device is connected.
5
SERVICE
Firmware update and debug port.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 9
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Rear Panels
Transmitter
No.
Name
Function Description
1
FIBER
Input multi-mode and single-core fiber optical signals, including
video, audio, and communication signals.
2
HDMI OUT
HDMI signal output port, connected to HDMI display devices
such as TVs or monitors with HDMI cable.
3
HDMI IN
HDMI input port, connected to HDMI source devices such as
media players or gaming consoles with HDMI cable.
4
AUDIO IN
Analog audio input port.
5
IR IN
IR signal input port, connected to 12V IR wideband receiver.
6
IR OUT
IR signal output port, connected to 5V IR wideband blaster.
7
RS-232
3pin-3.5mm Phoenix connector, connected to a PC or control
system for RS-232 command pass-through.
8
DC 12V
DC 12V/1A power input port.
Receiver
No.
Name
Function Description
1
FIBER
Input multi-mode and single-core fiber optical signals, including
video, audio, and communication signals.
2
HDMI OUT 1
HDMI signal output port, connected to HDMI display devices
such as TVs or monitors with HDMI cable.
3
HDMI OUT 2
HDMI signal output port, connected to HDMI display devices
such as TVs or monitors with HDMI cable.
4
AUDIO OUT
Analog audio output port.
6
IR IN
IR signal input port, connected to 12V IR wideband receiver.
7
IR OUT
IR signal output port, connected to 5V IR wideband blaster.
8
DC 12V
DC 12V/1A power input port.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 10
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
IR PIN Definition
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 11
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Connection Diagram
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 12
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Troubleshooting
Problems
Causes
Solutions
No Power / All LED off
Power supply not connected,
connected fully, or wrong power
supply.
Check if the power supply is
connected correctly and the
output voltage value is within
recommended specifications.
No sound or sound issues
The HDMI connection is faulty,
the audio format is not
supported by the displays, or
the source player is set to
another port for audio output
Check if the HDMI cables are
connected correctly.
Check if the audio format is
supported by the display and
that a user has not changed the
supported audio format on the
player`s audio output. Ensure
output settings from the HDMI
source device as set correctly.
No picture or picture flickers
The HDMI cable may be faulty
or the category cable quality is
faulty.
Check if the HDMI
and category cable connections
are correct and undamaged.
Change to another good
working HDMI cable or category
cable (CAT6 or better cable is
recommended).
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 13
BZBGEAR BG-EXH-8KF PRODUCT MANUAL
Tech Support
Have technical questions? We may have answered them already!
Please visit BZBGEAR’s support page (bzbgear.com/support) for helpful information and
tips regarding our products. Here you will find our Knowledge Base
(bzbgear.com/knowledge-base) with detailed tutorials, quick start guides, and step-by-step
troubleshooting instructions. Or explore our YouTube channel, BZB TV
(youtube.com/c/BZBTVchannel), for help setting up, configuring, and other helpful how-to
videos about our gear.
Need more in-depth support? Connect with one of our technical specialists directly:
Phone
1.888.499.9906
Email
support@bzbgear.com
Live Chat
bzbgear.com
Limited Product Warranty Terms
Pro Line: 5-year warranty from the date of purchase for AV/Broadcasting products bought
on or after August 1, 2024.
Essential Line: 3-year warranty from the date of purchase for AV/Broadcasting products
bought on or after August 1, 2024.
Cables: Lifetime Limited Product Warranty.
For complete warranty information, please visit bzbgear.com/warranty.
For questions, please call 1.888.499.9906 or email support@bzbgear.com.
Mission Statement
BZBGEAR is a breakthrough manufacturer of high-quality, innovative audiovisual equipment
ranging from AVoIP, professional broadcasting, conferencing, home theater, to live
streaming solutions. We pride ourselves on unparalleled customer support and services.
Our team offers system design consultation, and highly reviewed technical support for all
the products in our catalog. BZBGEAR delivers quality products designed with users in
mind.
Copyright
All the contents in this manual and its copyright are owned by BZBGEAR. No one is allowed
to imitate, copy, or translate this manual without BZBGEAR’s permission. This manual
contains no guarantee, standpoint expression or other implies in any form. Product
specification and information in this manual is for reference only and subject to change
without notice.
All rights reserved. No reproducing is allowed without acknowledgement.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 14
