
BG-UHD-18GFE
4K 18Gbps UHD HDMI USB KVM Extender Kit over Fiber w/HDR,
2-Way IR & RS-232
User Manual

BZBGEAR BG-UHD-18GFE PRODUCT MANUAL
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 2

BZBGEAR BG-UHD-18GFE PRODUCT MANUAL
TABLE OF CONTENTS
Statement 4
Safety Precaution 4
Introduction 5
Features 5
Packing List 5
Specifications 6
Operation Controls and Functions 7
Application Diagram 9
IR Pass-Through 10
HDMI Pin Definition 11
Tech Support 12
Limited Product Warranty Terms 12
Mission Statement 12
Copyright 12
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 3

BZBGEAR BG-UHD-18GFE 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.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 4

BZBGEAR BG-UHD-18GFE PRODUCT MANUAL
Introduction
The BG-UHD-18GFE over Fiber USB KVM Extender boosts up your video/audio
transmission distance up to 10km (6.25miles) over single mode fiber optic cables in
Ultra-HD 4K2K@60. Users can easily extend Ultra-HD sources from DVD/Blu-ray Disc
players, game consoles, PCs, and any other HDMI sources broadcasting to distant
displays. The BG-UHD-18GFE is also HDCP compliant and supports IR & RS-232
pass-through as well as keyboard/mouse USB signal transmission.
Features
● 4K2K@60 4:4:4 8 bits
● HDR 4K2K@60 4:2:0 10 bits
● Supports HDCP2.2
● Extend HDMI signals up to 10km (6.25miles) over single mode fiber optic cables
● Keyboard & mouse signal transmission
● Full frequency IR signal from 20KHz to 60KHz
● Bi-directional IR pass-through
● Link LED indicator light
● Wall mounting housing design for easy and robust installation
Note: The RS-232, IR, and USB functions cannot be used at the same time.
Packing List
● 1x BG-UHD-18GFE [TX & RX]
● 1x IR blaster
● 1x IR receiver
● 2x DC 12V
● 1x User Manual
● 2x Single Mode Module [optional]
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 5

BZBGEAR BG-UHD-18GFE PRODUCT MANUAL
Specifications
Technical
Role of usage
Transmitter [TX]
Receiver [RX]
HDMI compliance
HDMI 2.0a
HDCP compliance
HDCP2.2
Video bandwidth
Single-link 600MHz [18Gbps]
Video support
HDR 4K2K@60 (4:2:0 10 bits) / 4K2K@60 (4:4:4 8 bits)
HDMI over fiber
Yes
Audio support
Surround sound [up to 7.1ch] or stereo audio
Input TMDS signal
1.2 Volts [peak-to-peak]
Input DDC signal
5 Volts [peak-to-peak, TTL]
ESD protection
Human body model — ±15kV [air-gap discharge] & ±8kV [contact discharge]
PCB stack-up
4-layer board [impedance control — differential 100Ω; single 50Ω ]
IR pass-thru
Bi-directional
RS-232 support
Yes
Input
1x HDMI, 1x 3.5mm
1x fiber, 1x 3.5mm
Output
1x fiber, 1x 3.5mm
1x HDMI, 1x 3.5mm
In/Out
1x RS-232, 1x USB
1x RS-232, 2xUSB
HDMI source control
Controllable via IR pass-through from RX to TX with IR extenders
HDMI connector
Type A [19-pin female]
USB connector
Type A
3.5mm connector
IR receiver / IR blaster
IR receiver / IR blaster
Mechanical
Housing
Metal enclosure
Dimensions
[L x W x H]
Model
125x112.2x28mm[4.9" x4.4" x1.1"]
125x112.2x28mm[4.9" x4.4" x1.1"]
Package
371 x 170 x 77m m[1'5" x 6.7" x 3"]
Carton
410 x 368 x 393m m[1'3" x 1'4" x 1'5"]
Weight
Model
463g [16.3 oz]
455g [16 oz]
Package
1730g [3.8 lbs]
Fixedness
Wall-mounting case with screws
Power supply
12V2A
Power consumption
Max 10W
Operation temperature
0-50°C
Storage temperature
-20~60°C [-4~140°F]
Relative humidity
20~90% RH [no condensation]
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 6

BZBGEAR BG-UHD-18GFE PRODUCT MANUAL
Operation Controls and Functions
Transmitter Front Panel
1. USB[Host]: Connect to a USB port from the computer for keyboard & mouse
control
2. RS-232: Connect to serial port device with a DSUB-9 male-male or male-female
cable here
3. Mini USB: For technical support only [firmware update]
4. Dip Switch
DIP Switch Position
Description
TX & RX
PIN#1
ON [ ]
For system firmware update
OFF [ ]
Normal
PIN#2
ON [ ]
USB function ON
OFF [ ]
RS-232/IR function ON
PIN#3
ON [ ]
Disable IR function
OFF [ ]
Enable IR function
5. LED indicator
[Red]: Power LED indicator
[Green]: Link LED indicator
6. SFP OUT: Plug in single mode fiber optic cables that needs to be linked to the
receiving unit
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 7

BZBGEAR BG-UHD-18GFE PRODUCT MANUAL
Transmitter Rear Panel
7. HDMI IN: Connect to a HDMI source with a HDMI male-male cable
8. IR Receiver: Infrared 3.5mm socket for plugging in the extension cable of IR
receiver
9. IR Blaster: Infrared 3.5mm socket for plugging in the extension cable of IR blaster
10. +12V DC: Connect to a 12V power supply unit
Receiver Front Panel
11. USB [Device]: Connect to the USB keyboard & mouse
12. RS-232: Connect to serial port device with a DSUB-9 male-male or male-female
cable here
13. Mini-USB: For technical support only [firmware update]
14. Dip Switch
DIP Switch Position
Description
TX & RX
PIN#1
ON [ ]
For system firmware update
OFF [ ]
Normal
PIN#2
ON [ ]
USB function ON
OFF [ ]
RS-232/IR function ON
PIN#3
ON [ ]
Disable IR function
OFF [ ]
Enable IR function
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 8

BZBGEAR BG-UHD-18GFE PRODUCT MANUAL
15. LED indicator
[Red]: Power LED indicator
[Green]: Link LED indicator
16. SFP IN: plug in single mode fiber optic cables that needs to be linked to the
transmitting unit
Receiver Rear Panel
17. HDMI OUT: Connect to a HDMI display with a HDMI male-male cable
18. IR Receiver: Infrared 3.5mm socket for plugging in the extension cable of IR
receiver
19. IR Blaster: Infrared 3.5mm socket for plugging in the extension cable of IR blaster
20. +12V DC: Connect to a 12V power supply unit
Application Diagram
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 9

BZBGEAR BG-UHD-18GFE PRODUCT MANUAL
IR Pass-Through
IR Extenders
IR Blaster IR Receiver
IR Sockets
● IR BLASTER: plug in the IR blaster to emit all IR command signals received from the IR
receiver from the other end to control the devices corresponding to the IR signals.
● IR RECEIVER: plug in the IR receiver to receive all IR command signals from the IR
remote controls of the corresponding devices.
CAUTION!
Incorrect placement of IR Blaster and Receiver may result in the failure of the IR extenders.
Please check carefully before plugging in the IR extender to the respective IR sockets.
Warranty will not cover the damage.
Definition of IR Earphone Jack
IR Blaster IR Receiver
Note: You can buy any IR extension cables in the market that are compatible with the
definition of the IR sockets for the matrix if necessary for replacement use. However, IR
cables longer than 2m (6-ft) may not work.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 10

BZBGEAR BG-UHD-18GFE PRODUCT MANUAL
HDMI Pin Definition
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+
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 11

BZBGEAR BG-UHD-18GFE 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 12
