BZB Gear BG-CSA User manual

BG-CSA
USB 3.1 Gen 1 3G-SDI Capture Device with Scaler and
Audio
User Manual

TABLE OF CONTENTS
INTRODUCTION.........................................................................................................................1
FEATURES .................................................................................................................................1
PACKAGE CONTENTS..............................................................................................................1
SPECIFICATIONS ......................................................................................................................2
PANEL DESCRIPTIONS ............................................................................................................3
CONNECTION DIAGRAM..........................................................................................................3
VIDEO STREAMING...................................................................................................................4
TROUBLESHOOTING..............................................................................................................13
USB PIN DEFINITION ..............................................................................................................14
WARRANTY..............................................................................................................................15
MISSION STATEMENT............................................................................................................16

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INTRODUCTION
The BG-CSA USB 3.1 Gen 1 3G-SDI Capture Device with Scaler and Audio provides a professional
way to capture 3G/HD/SD-SDI signals. It utilizes the USB 3.1 Gen 1 (USB 3.0) interface to achieve high-
speed transmission. With this device users can capture 3G/HD/SD-SDI signals. Additionally, BG-CSA can
capture and display original uncompressed 3G/HD/SD-SDI with realistic color rendition. BG-CSA also uses
large volume image buffer technology which effectively avoids video tearing. The high sampling rate and
high sampling accuracy assure images with high sharpness, rich details, and fewer color edges.
FEATURES
SDI output resolution scaler with audio embedding
SDI video and audio streams over USB 3.1 Gen 1
Supports UVC1.0
Supports input and output video resolution up to 1080p 60Hz
Supports SDI loop through
Auto-detection on video format to ensure plug-play operations
Recording Video Format: H.264 (Software Compression)
Works on multiple operating system platforms (Windows 7/8.1/10, Mac and Linux OS)
Compatible with most 3rd party software such as OBS Studio and AMCap
Supports USB 3.1 (MJPG/YUY2) and USB 2.0 (MJPG)
Low Latency
System Requirements (Recommanded)
- Windows® 7(SP1) / Windows 8.1 / Windows 10
- PC: Intel® CoreTM i5-4440 3.10GHz + NVIDIA® GeForce® GTX 660 or higher
- Laptop: Intel® Core i7-4810MQ + NVIDIA GeForce GTX 870M or higher
- 4GB RAM or higher
PACKAGE CONTENTS
1x BG-CSA
1x USB 3.1 Gen 1 A to A Cable (host to device)
1x User Manual
1. Video quality is affected by the capability of computer and software settings.
2. Please use the included USB 3.1 cable in the box to protect the device and avoid further
compatible issues.
○
!

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SPECIFICATIONS
Model Name
BG-CSA
Technical
Role of usage
Video Capture Device
Input Video bandwidth
2.970 Gbit/s, 2.970/1.001 Gbit/s
Output Video bandwidth
Up to 350MBps (USB)
Video support
Up to 1080p60
Audio Input
SDI Embedded Audio & Stereo audio Input
Audio Format
2 Channel, 44.1 and 48KHz sample rate, up to 16bit PCM
Recording Mode
Software Compression
Recording Video Format
YUY2 (USB3.1 Gen 1), MJPG (USB2.0/3.1 Gen 1)
ESD protection
Human body model —±15kV [air-gap discharge] & ±8kV [contact
discharge]
PCB stack-up
6-layer board [impedance control —differential 100Ω; single 50Ω]
Firmware update
Via USB Port
Input
1x SDI + 1x 3.5mm
Output
1x USB + 1x SDI (Loopout)
BNC connector
3G 75Ω inter-locked socket
USB connector
USB 3.1 Type A (SuperSpeed USB)
Software compatibility
(not complete list)
OBS Studio (Windows, Linux), AMCap (Windows), Potplayer (Windows),
Skype (Windows, OS X), Hangout (Windows), TeamViewer (Windows)
OS Support
Windows 7 /8.1 /10, Mac and Linux OS
Mechanical
Housing
Metal enclosure
Dimensions
[L x W x H]
Model
102 x 57 x 21mm [4" x 2.2" x 0.8"]
Package
165 x 111 x 42mm [6.4" x 4.4" x 1.7"]
Carton
490 x 426 x 352mm [1'6" x 1'4" x 13.8"]
Weight
Model
Package
Fixedness
Wall-mounting case with screws
Power supply
Via USB
Power consumption
4 Watts [max]
Operation temperature
0~40°C [32~104°F]
Storage temperature
-20~60°C [-4~140°F]
Relative humidity
20~90% RH [no condensation]

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PANEL DESCRIPTIONS
1. USB OUT: Connect to a USB host (PC, NB, MAC…)
2. STEREO AUDIO IN: Connect to analog stereo audio source
3. AUDIO SWITCH: [left] Audio from stereo audio in, [right] Audio from SDI
4. SDI IN: Connect to a 3G/HD/SD-SDI source
5. LED INDICATOR: Input signal indicator LED
6. SDI LOOPOUT: Connect to a 3G/HD/SD-SDI display
CONNECTION DIAGRAM

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VIDEO STREAMING
Create a Video Stream
Users can create video streams on their streaming service platform of choice. The below steps show how to
complete the video streaming settings from Twitch and YouTube.
Twitch
1. Browse the Twitch website (https://www.twitch.tv/) and log in, then select "Creator Dashboard" from your
account drop-down menu at the top right of the screen.
2. Find "Preferences" in the left menu, and click "Channel", then you will see "Primary Steam key" on the screen.
Copy the "Primary Steam key" and paste it into the "Stream Key" field in the OBS, then click "Start Streaming"
in the software.
* Please refer to steps 4-6 of the OBS software control program.

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3. Go back to Twitch and select "Channel" from your account drop-down menu.
4. At this point, you will see the player start live streaming.

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YouTube
1. Browse the YouTube website (https://www.youtube.com/) and log in, then lick "Go live" from the "Create" icon
menu at the top right of the screen.
* If your account is using YouTube for the first time to create a video stream, you need to wait 24 hours to enable
the function.
2. Click "Stream" in the left menu, and fill in the relevant information of the live video to create a new stream.

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3. You will see "Stream key" from the “STREAM SETTINGS” below. Copy the "Stream key" and paste it into the
"Stream Key" field in the OBS, then click "Start Streaming" in the software.
* Please refer to steps 4-6 of the OBS software control program.
4. Next, go back to YouTube, and then wait for 30-60 seconds, the player will display the live preview. At the same
time, the "GO LIVE" button at the top right will turn blue, please press this button.

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5. The player on YouTube will start live streaming.

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Stream and record videos with OBS
OBS is a popular USB capture freeware and has excellent compatibility. Please start with OBS if users are not
familiar with USB capture devices.
Download the software
Browse the download page of the OBS official website (https://obsproject.com/download), then select the
suitable computer operating system and start downloading.
Start the software control program
After downloading the software, please open it and follow the below steps to complete the video streaming settings.
Step1
Step2-3
Step4-7

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1. First, find the "Scenes" window, click "+" in the lower left corner, and then enter the name of the scene to create
a new scene.
2. Find the "Source" window, click "+" in the lower left corner, and then select "Display Capture" or "Video
Capture Device" to create a new source.
3. Next, you can set display capture properties. If you select "Display Capture" in step 2, you can select the primary
monitor or other extended monitor as the display source. If you select "Video Capture Device" in step 2, you
can select USB video device as the display source. After all settings are completed, click “OK”.

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4. Click "Settings" and then select "Stream" to perform streaming settings. Users can choose service providers,
including Twitch, YouTube, etc.
5. Paste the stream key provided by the service provider into the "Stream Key" field, then click "Apply" and "OK"
after setting. In addition, users can lick "Get Stream Key" at this step to open the service provider website.
6. Please click "Start Streaming". At this time, the screen after clicking "Start Streaming" will be displayed in the
live video.

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7. On the other hand, users can also click "Start Recording" to record videos with OBS. Besides, you can click
"Settings" and then select "Output" to set “Recording Path” and “Recording Format”.
The procedures the manual demonstrates are based on the interface that each website
provides at the time when the manual is written. The most current method of live streaming
should be similar to the above procedures but is subject to change by the website interface
update by the social media platform.
○
!

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TROUBLESHOOTING
Our USB device has been subjected to rigorous tests before shipping. Most of the incompatibilities
we have experienced are not from the USB capture device itself, but from the sophisticated software and
hardware combinations of PCs or laptops. Please try the following suggestions-
1. OBS is a popular USB capture freeware and has excellent compatibility with most devices. Please
download it and start with OBS if users are not familiar with USB capture devices.
https://obsproject.com/download
2. Due to the complexities of OS and computer hardware, different USB ports on PCs or laptops may
have different performance or limitations. Please try all USB ports to see if there are any differences.
3. Please use the included USB cable. We do not guarantee the overall performance when the USB
capture box is connected with other USB cables.
4. SDI cable quality may also play an essential role when capturing. Please be sure the SDI cable is
capable of 1080P@60 SDI signal transmission or better. Try different cables when the device is not
able to work as expected.
5. If audio has noise, please adjust sampling frequency setting on PC or laptop. If the default sampling
rate is 48000 Hz, please select 44100 Hz and vice versa. The path of setting sampling frequency on
windows 10 is:
Start →Setting →System →Sound →Device properties →Additional device properties →
Advanced

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USB PIN DEFINITION
P1
P2
VBUS
1
1
D-
2
2
D+
3
3
GND
4
4
SSRX-
5
5
SSRX+
6
6
GND
7
7
SSTX-
8
8
SSRX+
9
9
Shield
SHELL
SHELL

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WARRANTY
BZBGEAR wants to assure you peace of mind. We're so confident in the quality of our products that
along with the manufacturer's one-year limited warranty, we are offering free second-year warranty
coverage upon registration*.
Taking advantage of this program is simple, just follow the steps below:
1. Register your product within 90 days of purchase by visiting BZBGEAR.com/warranty.
2. Complete the registration form. Provide all necessary proof of purchase details, including serial
number and a copy of your sales receipt.
For questions, please call 1.888.499.9906 or email [e-mail].
For complete warranty information, please visit BZBGEAR.com/warranty or scan the QR code below.
*Terms and conditions apply. Registration is required.

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MISSION STATEMENT
BZBGEAR manifests from the competitive nature of the audiovisual industry to innovate while
keeping the customer in mind. AV solutions can cost a pretty penny, and new technology only adds to it.
We believe everyone deserves to see, hear, and feel the advancements made in today’s AV world
without having to break the bank. BZBGEAR is the solution for small to medium-sized applications
requiring the latest professional products in AV.
We live in a DIY era where resources are abundant on the internet. With that in mind, our team
offers system design consultation and expert tech support seven days a week for the products in our
BZBGEAR catalog. You’ll notice comparably lower prices with BZBGEAR solutions, but the quality of the
products is on par with the top brands in the industry. The unparalleled support from our team is our
way of showing we care for every one of our customers. Whether you’re an integrator, home theater
enthusiast, or a do-it-yourselfer, BZBGEAR offers the solutions to allow you to focus on your project and
not your budget.