Kiloview S2 User manual

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，
S2 4K Video Encoder
USER MANUAL
Changsha KILOVIEW Electronics CO., LTD

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Legal Notices
Subject to the receiving of this document from Changsha Kiloview Electronics Co.,
Ltd.,(Hereinafter referred to “Kiloview”), the following terms are understood and
agreed. Or else, please stop using this document.
This document is copyright of Kiloview, all rights reserved. The document covers the
proprietary information of the company. No company or individual may copy,
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other information contained in the document without the prior written permission of
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is the registered trademark of Kiloview. The name and logo are the trademarks or
registered trademarks of the company. Other products or company names mentioned
in this document may be the trademarks or registered trademarks of their respective
owners. The reading of this document without the prior written consent of the
company or the third party rights holder does not imply that the reader is given any
right to use any of the marks appearing in this document by implication, non-evidence
or otherwise.
This product complies with the design requirements related to environmental
protection and personal safety. The storage, usage and disposal of the product shall
be in accordance with the product manual, relevant contract or relevant national laws
and regulations.
This document is provided "as is" and "only in this state". Products and technical
updates are subject to change without prior notice.
For matters not covered in this document, please visit our website www.kiloview.com
for information and technical support.

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Contents
1. Product Introduction ..............................................................................................................5
1.1 Advantages .....................................................................................................................5
1.2 Parameters ......................................................................................................................6
2. Operation guidance................................................................................................................7
3. Device interface description.................................................................................................7
4. Installation and connection ..................................................................................................9
4.1 Video signal connection..............................................................................................9
4.2 Network connection...................................................................................................10
4.3 Power connection........................................................................................................10
5. Login and network configuration .....................................................................................11
5.1 Device login ..................................................................................................................11
5.2 Network configuration...............................................................................................12
5.2.1 Ethernet ..............................................................................................................12
5.2.2 Advanced setting .............................................................................................13
6. Function parameter configuration....................................................................................14
6.1 Status column...............................................................................................................14
6.2 Audio & video encoding setting.............................................................................16
6.2.1 Audio and video signal source setting.......................................................16
6.2.2 Video encoding parameter............................................................................16
6.2.3 Audio encoding parameter ...........................................................................18

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6.3 Text and OSD overlay.................................................................................................18
6.3.1 Text overlay........................................................................................................18
6.3.2 OSD overlay.......................................................................................................20
7. Streaming service ..................................................................................................................22
7.1 NDI|HX............................................................................................................................22
7.2 NDI discovery server ..................................................................................................24
7.3 RTSP ................................................................................................................................25
7.4 SRT...................................................................................................................................27
7.5 RTMP pushing(live streaming).................................................................................29
7.6 TS-UDP Pushing (unicast and multicast) ..............................................................31
7.7 HLS service....................................................................................................................32
8. User Management.................................................................................................................33
9. Location & Time.....................................................................................................................33
10. System setup ........................................................................................................................34
10.1 Language.....................................................................................................................34
Click the language window to switch the system language, currently it supports
simplified Chinese, traditional Chinese and English.................................................34
10.2 Restore.........................................................................................................................34
10.3 Reboot..........................................................................................................................35
10.4 Firmware upgrade.....................................................................................................35

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1. Product Introduction
S2 is an UHD 4K HDMI video encoder, which supports up to 4Kp60 input and
H.265 (HEVC)/H.264 high-performance encoding with Gigabit wired network
transmission. Also, it supports the most protocols including
NDI|HX/SRT/RTMP/RTMPS/HLS/UDP/RTSP, etc.
1.1 Advantages
UHD and low latency
⚫With H.265 HEVC encoding, S2 realizes lower encoding bitrate and save more
than 40% bandwidth comparing with H.264.
⚫Support 1000Mbps Ethernet port (with PoE).
⚫Low encoding latency less than 34ms.
⚫Resolution up to 4KP60Hz input supported.

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1.2 Parameters
Model
S2
HDMI input
HDMI2.0
Analog audio interface
1*3.5mm Line in
USB interface
USB2.0
Video interface
1 channel HDMI input，1 channel HDMI loop
Network
1000M Ethernet
POE
Support
Streaming protocols
RTSP/RTMP/HLS/TS-UDP/SRT/NDI|HX
Video resolution input
Up to 4KP60
Video encoding
H.264/H.265
Encoding resolution
4KP30
Audio encoding
AAC/G7.11
Management method
Web management
Power
DC 12V/1A
Working temperature
-20℃~60℃

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2. Operation Guidance
⚫Installation and connection
Connect the power, Ethernet cables and video input source correctly, power on
the device.
⚫Network connection and configuration
The simplest way is to access the unit via Ethernet through default IP address
(192.168.1.168) to login the WEB page for setting (default username and
password: admin/admin).
3. Device Interface Description

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1. Tally
2. Status
Indicator
3. Power Switch
4. Power Port
5. 3.5mm Line In/Line
Out
6. HDMI Loop
7. HDMI Input
8. USB Expansion Port
9. 1 GbE port with PoE
10. Reset

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4. Installation and Connection
4.1 Video signal connection
Connect HDMI signal from a source (such as camera) to the device HDMI port
through a cable.
Name
Color
Status
Description
POWER
White
Always on
Power connected
Flashing
Power off or failure
Off
No power supplied or power failure
LINK
White
Quick flashing
Network connected
Slow flashing
Network connection abnormal or restore factory
setting indication (Run light will be flashing as well)
Off
Network disconnected or abnormal
RUN
White
Flashing
Working normally
Always on
Indication for device restore factory (Link light will be
flashing as well)
Off
Working abnormal or not start

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4.2 Network connection
Connect the network cable to Ethernet of the device, and connect the other end to
the network switch or directly to the network port of the computer.
4.3 Power connection
Using the power adapter (DC 12v) to connect to the power connector of the device.
Turn on power switch, the power light will be on and the device starts working,
which will take 30~40s.

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Note: If your switch supports POE power supply, there is no need to
connect to the power supply.
5. Login and Network Configuration
5.1 Device login
5.1.1 The default management IP address for the device
The default management IP address of the encoder is 192.168.1.16, which could be
used as device management all the time and no effects on the device business IP
address. Net mask is 255.255.255.0.
5.1.2 Computer network configuration
Click “network and Internet setting” -- “Network and sharing
centers”—“Ethernet”—“Internet agreement version 4”—Use below IP address,
enter 192.168.1.* manually (* refers to the number from 1 to 255 besides 168 ) and
net mask, click “Login”.

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5.1.3 WEB management page login
Open the WEB browser, directly input the encoder's IP address (default is
192.168.1.168) or the URL http://192.168.1.168 and press “Enter”to open the
login interface. Fill in the username and password, the default username is admin,
the default password is admin, and then click "Login".
Note: Due to the browser compatibility issues, it may cause the webpage
display abnormal, it is recommended to use Chrome and Firefox.
5.2 Network configuration
5.2.1 Ethernet
After login, you could configure internet IP by DHCP or manually (Default is DHCP).
This IP address could be used for network streaming and device management.
After configured IP address, you could directly visit this IP address to login into the
device.

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There are two ways to get the address, one is DHCP, and the other is manually. To
use DHCP, please ensure that the router or switch has enabled the DHCP service.
This method is simple and convenient, but the IP obtained by DHCP changes
continuously, and you cannot directly know what IP address the encoder gets. To
select manually, you need to enter a fixed IP to the device, and this IP address is
fixed as long as the device does not restore the factory settings, this method is
more stable. Therefore, the two methods have their own advantages, and can be
selected accordingly.
5.2.2 Advanced setting
HTTP/HTTPS setting
The default web service port is 80 (https port is 443). You can change it (range:
1-65535) accordingly. After revised corresponded port, visit device configuration
page. You need to add the changed port behind the device IP address before you
visit. For example, the device normal login IP address is 192.168.1.168, change Web
service port from 80 to 90, HTTPS service port from 443 to 450, then enter
192.168.1.168:90 or https://192.168.1.168:450 to visit device respectively.
By HTTPS, if the web browser prompts certificate errors which is caused by the
browser certificate security authentication, you will need to add it to the safe list of
the browser.

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Routing strategy
The object of operation of routing strategy is the data packet, which is for routing
release and reception. According to the needs, the data packet transmission path
can be changed according to a certain strategy. When the device is connected to
multiple network links, the different data link can be sent according to the
appointed network link through designated strategy, which improves the utilization
efficiency of the link.
Note: This operation requires professional person have a good
understanding of the current network routing table or network well. Incorrect
configuration may cause device abnormal.
6. Parameter Configuration
6.1 Status column
In the status column, the left window is for preview of the video source either with
image or video picture. When preview with image, you will see image stream, which
refresh every 3 seconds. When preview with video, you will see smooth video. You
can control and switch image steam and video stream through the switch. If the

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preview window is displayed in black, it means the video source has not been
detected by the device, and you need to check whether the input cable is plugged
in correctly. The icon and in the lower left corner of the preview window
can realize the functions of safety frame and centerline for the preview video.
The parameters for main stream and sub stream are showed at the right window.
You can switch the pages through clicking main stream and sub stream in the upper
left corner. Brief introduction of the relevant encoding parameters as below:
⚫Video source parameters: Display the resolution and real-time bitrate of the
video source
⚫Video source: Display the interface of the source
⚫Encoding format: Display the encoding format of the source
⚫Resolution: Display encoding resolution of the source
⚫Framerate: Display encoding framerate of the source
⚫Real time bitrate: Display the realtime changes of the encoding bitrate
⚫Audio format: Display audio format of the source
⚫Audio sampling: Display encoding audio sampling of the source
⚫Channels: Display encoding audio channels of the source

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6.2 Audio & video encoding setting
Click setting button on the dashboard, enter the video encoding setting Webpage.
6.2.1 Audio and video signal source setting
There is only one HDMI input for the device, video source is HDMI by default. For
audio source, you can select HDMI embedded audio or analog Line In. Default
setting is HDMI embedded audio.
6.2.2 Video encoding parameter
Main stream encoding parameters configuration as follows:
⚫Two ways of encoding mode, the main stream and sub stream both can be

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H264 or H265.
⚫“Scaling” has 7 options for choice. Default setting is “Default size”,
that is, the video size after encoding is the same as the input video size. You can
also set to encode low resolution input into high resolution output, and similarity,
high resolution input can be encoded into low resolution output.
⚫“Color”: “With color” and “Monochrome”. Monochrome is black
and white color, “With color” remains the original color. Default setting is “With
color”.
⚫“Profile”: High profile，main profile，baseline. They are set according to
platform supported encoding profile. High Profile is the highest compression
efficiency, that is, under the same bitrates, image quality is the best; Baseline is the
most widely supported; default setting is High Profile, which should be based on
the actual platform supported.
⚫“Bitrate control”: CBR-Constant bitrate and VBR-Variant bitrate. From literal
meaning, CBR is stable and unchanged bitrate, while VBR is constantly
changing according to actual content. Generally, network transmission adopts
CBR to guarantee transmission quality, while file storage uses VBR to guarantee
file quality. Default setting is CBR-Constant bitrate.
⚫“Bitrate” supports self-define bit rate and adjustable 20K-25M. After selected
self-define bit rate, you can set self-define bit rate from 2K to 100M.
Theoretically, the higher bitrates, video quality after encoding is better. But
specific setting should be based on actual network situation, which can’t be

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higher than your own upstream bandwidth.
⚫“Framerate” is adjustable from 24FPS to 60FPS and customized framerate
supported. For customized customized framerate, you can assign framerate
manually after encoding, in theory, it shouldn’t be higher than the original
framerate.
⚫“GOP size” has seven options and supports user-defined adjustment. It is
adjustable according to actual situation, default is 60, and normally it could
meet the most majority of needs.
6.2.3 Audio encoding parameter
Audio encoding modes include AAC and G.711, optional. Audio sampling is chosen
according to actual situation. Channels consist of “Stereo” and “Mono”.
Encoding bitrate is adjustable between16K-256K, default is 64Kbps.
6.3 Text and OSD overlay
6.3.1 Text overlay
1）Enter “ OSD”—“Image management”—“Add image”.

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2）Fill in “image name”in the pop up window, choose the image to upload, and
then save. You can check the image and information listed under the Image list.
3）Click image management back to image overlay page, click add image.
4）Go to the overlay setting pages, overlay type select image, and then click the
image and the position you need overlay, click ok.
5）The configured image overlay will be shown at the station column, check the

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image overlaid, and finally check image overlay to make it effect.
Note:
⚫ The number of uploaded images can not be over 10 due to the limites of
storage space, and the maximum size of a single image is 5M.
⚫ The resolution of uploaded image can not be over the video.
⚫ For the image format, only JPEG and PNG supported.
⚫ You can’t see the effects of image and text overlay in the preview window,
which can only be displayed on the computer by decoding output with
software or decoder.
6.3.2 OSD overlay
Click“OSD”-“text overlay”-“add”