Hardware framework research of longdistance learning and tele-health
applications supported by space
technology in Asia-Pacific Region
Yunnan Yinmore Telecommunication
Technology Co.,Ltd
WenHuaChu
October 2005
1
Introduction on Yunnan Yinmore






Operation of Satellite Earth Station including
installation and maintenance
Two antennas, 7.2m and 7m by use of KU band
DVB-S, DVB/IP, TDM/TDMA, SCPC, DAMA
Business including Tobacco Financial Electricity
Power, Distance Learning, Paging System and
Remote Station two thousand one way and one
thousand two way around China
Satellite Communications Broadcast good for
point to multi-point
Focus on tele-health and tele-learning
2
Summary
One: The necessity of tele-health
and Long-Distance Learning in the
remote areas
Two: The positive effect of tele-health and
long-distance to social development
in the remote areas
Three: Technology systems and business
modes
Four: Equipment model and configuration
Five: The end
3
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
1-1 Economically & socially imbalanced
development among different areas
Economically imbalanced development among different
areas is a common problem for many countries. .
4
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
In the recent decades, Generally speaking, economy
has increased quickly and permanently in the AsiaPacific Region, but the problems of imbalanced
economy and area gap are still ineffectively controlled,
some aspect even tend to stand out.
In 1980s, Economy have gained great achievement in
China, Many areas have gotten bigger development.
But imbalance is simultaneously happening among
areas, especially for resource and economic imbalance.
the gap among areas is getting bigger and bigger.
5
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
The economic gap among areas is getting bigger
and bigger.
In 1980, the average GDP for per person is 1.53 times
and 1.8 times as big as middle and western areas
respectively. Until ninety age,the gap has gotten
bigger,for example figure one:
While in 2002, its average GDP for per person is
2.08times and 2.63times as big as above-mentioned
areas.
6
The necessity of tele-health and
Long-Distance Learning application in
the remote areas
Figure one: Time sequence figure of four big area’s GDP
for per person from 1991 to 2003.
7
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
China: Education actuality in the village (Statistic
data in 2000)
Over fifteen years old people is not over seven years in
average educated time in the village,There are three
years gap with average level in the city.
The labour popular Between fifteen years old to sixtyfour years old in the village,People whose educated over
junior college education is not over one percent,it is
lower thirteen percent than in city.
8
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
There are eighty-five million illiterate or
semiliterate,over three-quarter people concentrate in
the west village 、minority area and remote areas.
In the Yunnan of China: Education actuality in the
village
There are seventy-three areas which are supported
mainly by country in the one hundred and twenty-six
agricultural areas of Yunnan.it is 12.33 percent which
are supported mainly in the total five hundred and
ninety-two areas,illiterate people is 19.02 percent in
the poorly areas.
9
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
Over ten million poorly population is 30.96 percent
that there are thirty-two million four hundred and
fifty-seven thousand and three hundred total
population in the village of Yunnan.
These poor population mainly live in deep
mountainous area、stone mountainous area 、cold
mountainous area 、 dry intertropical area 、
minority area and frontier area.
10
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
China：Medicine service actuality in the village
According to the third country’s medicine service
investigation in 2003,at present 79.1 percent population
could not have any medical insurance in the village.
Poor population because of illness and reversional poor
population are two-part of pool population in the
village,the rate of dying is sixty to eighty percent in the
middle west area because there are not money to cure.
11
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
22 percent of total population in the world,but
medicine fare is only 2 percent of total medicine fare
in the world, 80 percent population live in city,there
are 1.5 doctor in the average every one thousand
people.
12
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
1-2 The concept of long-distance learning and
tele-health
1: The concept and characteristic of long- distance
learning
Long-distance learning, applied through media and lots
of education resources, is an activity without time and
space limit, which is different from traditional campus
education.
13
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
Compare with traditional education, Long distance
learning have some characteristic: opening、
extending、flexibility and so on.
14
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
2: The concept of tele-health
From broad sense, tele-health means providing medical
message and service with communication technology
and computer media technology. It include longdistance diagnose 、consulate 、nursing、long-distance
learning consultation、 long-distance medicine message
server.
15
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
At present, Effective tele-health method is longdistance diagnose、long-distance surgery、medicine
expert system in the network，it can sufficiently
realize technology and resource sharing.
16
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
1-3 The positive effect of long-distance
learning and tele-health to social
development in the remote areas
If needing reduce illiteracy people large-scale in the
shorter time and improving medicinal level in the
outlying areas, only relying on limited routine education
and routine medicinal method isn’t enough.
17
The necessity of tele-health and
Long-Distance Learning application
in the remote areas
But holding long-distance learning and tele-health that
there are bulky、widespread、flexible teaching
method could carry out this target.
With communication and computer developing
quickly since1990s, various applications of tele-health
and long-distance learning is getting more and more
mature, it has put up wide foreground.
There are successful cases achieving tele-health
through satellite and long-distance learning in the
Australia、Korea、Japan、America、Russia.
18
Applicative practice of developing
tele-health and long-distance learning
in the remote areas

Tele-health and long-distance learning are started
from late 1980s to early 1990s in China, but it
develops quickly. At present, there are 3 million
professional students ,1.26million college and technical
secondary school teachers 、21 million high and
primary school teachers and many peasantry gain
training through satellite besides 3.6 million college
and technical secondary school students.
19
Applicative practice of developing
tele-health and long-distance learning
in the remote areas
According to the applied long-distance learning and telehealth projects such as:Access to every village,modern
remote learning project of middle and primary schools in
Rural areas,Golden-Health Network of China and so on
had acquired good benefit for economic and social
development.
20
Applicative practice of developing
tele-health and long-distance learning
in the remote areas
Our company takes charge to put forword “Application
Plan on experimental project among Rural long-distance
Integrative Information Centers in Yunnan ”:
Establishing experimental spot in rural areas through the
technology systems of DVB-S broadcast and terrestrial
inbound or internet, forming information center on the
basis of computer equipment and education within high
and primary school in the village.
21
Applicative practice of developing
tele-health and long-distance learning
in the remote areas
It serves to teaching 、serves to farming development
and supply information for peasantry. Until Oct 2005,
the item has developed sixteen regions in the whole
province and total sixty-six remote sites; the scale and
influence of this project are extending gradually under
the promotion of government t and enterprises.
22
Applicative practice of developing telehealth and long-distance learning in the
remote areas
鑫诺
23
The summary of technology systems
and business modes


The star-net constructed long-distance learning/telehealth wide-belt satellite communication system adopts
DVB-S broadcast outbound integrates with satellite MFTMDA inbound or VPN terrestrial inbound technology
system.
There are one-way and two way application
24
The summary of technology systems
and business modes

One-way application: DVB is a international standard
on the basis of establishing MPEG-2 group by group
exchange standard,it supplies multimedia platform for
voice 、video frequency and data distribution.DVB
supplies a transition method with IP group by group
exchange network.
25
The summary of technology systems
and business modes
26
The summary of technology systems
and business modes
Two way application:DVB broadcast will include video 、
data and IP playing, it can bring into play sufficiently
character of satellite broadcast and channel resource
sharing, Remote host input IP data information through
TDMA or VPN terrestrial inbound channel.Two way
system can support flexibly data、videoconference and
voice operation, it will supply advanced communication
platform for long-distance learning and tele-health.
27
The summary of technology systems
and business modes
28
The summary of technology systems
and business modes
29
The summary of technology systems
and business modes

Five business modes: According the difference of user and
application, we think that long-distance learning and telehealth broadband satellite communication system can
supply five business modes.
30
The summary of technology systems
and business modes
1: DVB broadcast video receiver system (mode
one)
Using satellite receive antenna 、LNB and digital
satellite receiver to form satellite receiving system and
configuration color TV、DVD. Using various remote
satellite host to make them as a integrative character
which holding technologic training for peasantry, and
issuing information in agriculture 、network
information and medical medicine.
31
The summary of technology systems
and business modes
They apply for every peasantry family and popularize
scientific technology and medical medicine knowledge
in agriculture.
32
The summary of technology systems
and business modes
Mode one: system structural figure
33
The summary of technology systems
and business modes
2: Satellite DVB/IP receiver system (mode two)
DVB/IP will use digital video and voice system and
internet. That is to say, the user can make use of ground
dialing or ADSL to internet besides receive video and
voice data from satellite, or center data platform,
downloading IP any data, the user can also use computer
to play video and voice data for accomplishing education
training.
34
The summary of technology systems
and business modes
It applies to primary schools and hygiene station in
the village in to realize newer scientific information 、
local disease and epidemic prevention in the village.
35
The summary of technology systems
and business modes
Mode two: system structural figure
Satellite DVB/IP receiver system
36
The summary of technology systems
and business modes
3: Satellite receiver system and multimedia
computer classroom (mode three)
Add multimedia projection and computer network
classroom on the basis of mode two, which is applicable in
information technologic education, local agriculture
technology, local hospital and medicine organ training
through satellite network as main inputting channel and
dialing to get center information platform, using
unsymmetrical inputting character to find out and
download audio teaching and training data, and it can
make
teaching
and
training
synchronously,
asynchronously and alternately.
37
The summary of technology systems
and business modes
It applies to information technologic education、local
agriculture technology 、 country hospital and
medicine organization training in the village.
38
The summary of technology systems
and business modes
Mode three: system structural figure
39
The summary of technology systems
and business modes
4: Satellite two way system and multimedia computer
classroom (mode four)
Add satellite two way communication function on the
basis of mode three, which is applicable in county
hospital, medical organization, education training and
other medical treatment provided by specialized medical
organization that connected with center information
platform, such as, long-distance consulting, diagnosing
and surgical guidance, it can make teaching and training
alternately.
40
The summary of technology systems
and business modes
Mode four: system structural figure
Satellite two way tele-health and teaching system
41
The summary of technology systems
and business modes
5: Satellite two way system、videoconference and
multimedia computer classroom (mode five)
Add videoconference system on the basis of mode four,
which is applicable in town city hospital, medical
organization, education training and other medical
treatment provided by specialized medical organization
that connected with center information platform, such as,
long-distance consulting, diagnosing and surgical
guidance, it can make teaching and training alternately.
42
The summary of technology systems
and business modes
Mode five: system structural figure
Satellite two way tele-health 、 teaching and
videoconference system
43
The end

Making use of satellite communication to build
information center in the village, and to provide
information services related to internet, electronic
library 、
remote education 、
database 、
videoconference 、 tele-health 、 broadcast 、 video
program 、 email 、 voice service 、 government 、
community 、 market 、 price and environment.
44
The end

Such service method utilize the advantages of largescale covered satellite, non-relation between
communication cost and geographical location, and
the remote terminal platform which is easyconstructed, flexible, low-cost, shorter period and
excellent resource-shared. Therefore, such kind of
service will play an important role in both economic
construction in poor areas and peaceable social
development.
45
The end

Asia-Pacific Region hold about over half of population in
the world, most of them live on agriculture and live in
poor area in the village. Many Asia-Pacific regions are
isolated with developed countries for their inconvenient
road, transportation, electricity and communication
infrastructure rising from mountain, ocean, desert and
forest.
46
The end

So we think that long-distance learning and tele-health
modes in China are good reference for other AsiaPacific Region.
Accessories: Equipment model and configuration
47
Accessories: Equipment model and
configuration
1: The main configuration of satellite
No.
Equipments name
Qty
host
1
LinkStar Gateway Uplink&NCC Equipment Note: 1:1 Redundant
1.1
DVB Modulator
2
1.2
DVB Modulator Protection Switch (1:1)
1
1.3
Ethernet Switch (Tx Rack)
1
1.4
Redundant AC Power System for Ethernet Switch
1
1.5
IP Encapsulator
2
1.6
Redundant NCC/NMS Subsystem
1
1.7
Redundant Regional NCC/NMS Subsystem
1
1.8
TCP Acceleration Subsystem
1
1.9
NMS PC with GUI
1
1.10
Terminal Server, 4-Port
1
1.11
QoS Policy Manager with Accounting Software (Outbound from Gateway)
1
1.12
LINKSTAR NCC/NMS System Software
1
1.13
Uplink Redundancy Controller
1
1.14
LINKSTAR Uplink Subsystem Rack, 80", Prewired
1
48
Accessories: Equipment model and
configuration
1: The main configuration of satellite
host
2
LinkStar Gateway Downlink Equipment
2.1
Ethernet Switch (Rx Rack)
1
2.2
Redundant AC Power System for Ethernet Switch
1
2.3
Timing and Distribution Unit
2
2.4
LINKSTAR Gateway Channel Unit (GCU)
6
2.5
GPS Receiver
2
2.6
NCC Monitor, Keyboard & Control Switch
1
2.7
Policy Router (10/100BaseT Interface)
1
2.8
Redundant Cable kit for hub
1
2.9
LINKSTAR Downlink Subsystem Rack, 80"
1
3
LinkStar Installation Supervision Services
Note: Customer to provide 1 to 2 English-speaking, skilled local laborers to
support
3.1
Site Survey for Hub (Excludes RFI Testing)
1
3.2
LinkStar Installation Supervision, One Hub Site and 3 Remote Sites
1
3.3
One-Way Server/Client Installation
1
3.4
Test Equipment Rental/Ship (Customer Responsibility)
0
3.5
Hub On-the-Job Training with Ten Students (assumed to immediately follow
installation)
1
49
Accessories: Equipment model and
configuration
1、Satellite host equipment’s configuration
4
LinkStar Network System Program Services
4.1
Systems Engineering and Program Management
1
4.2
LINKSTAR Gateway Documentation Set
1
4.3
LINKSTAR NCC/NMS Syst S/W Maint & Tech Support C
1
50
Accessories：Equipment model and
configuration
2: DVB Broadcast video receiver system(mode one)
No.
Equipments name
Model Description
Equipments
manufactory
1
1.2m C/Ku Band Off-set receive
antenna
WUXI HUAXIN RADAR ENGINEERING CO.,LTD
WD120/Ku-P-I
WUXI HUAXIN RADAR
ENGINEERING CO.,LTD
1
2
Ku-Band LNB
PBI GOLD 1040
PBI
1
3
DVB Reception PC Card
Coship 2030S
SHENZHEN COSHIP
ELECTRONICS CO.,LTD
1
4
DVB Digital Satellite Receiver
Coship CDVB2000D
5
TV
CHANGHONG CHD34J18S
6
DVD PLAYER
CHANGHONG DVD589
7
TV Channel Modulator（Option）
Jiuzhou MI750
8
FM Modulator（Option）
Jiuzhou FM-1A（Audio Modulator）
9
Digital TV Modulator（Option）
Jiuzhou QAM860-A
1
10
Digital TV Receiver（Option）
Jiuzhou DVC2018
1
QTY
1
CHANGHONG ELECTRIC.
CO.,LTD
1
1
Sichuan Jiuzhou
Electric Group
Co.,Ltd.
1
1
51
Accessories：Equipment model and
configuration
3: Satellite DVB/IP receiver system(mode:two)
No.
Equipments name
Model Description
Equipments manufactory
QTY
WUXI HUAXIN RADAR
ENGINEERING CO.,LTD
1
1.2m C/Ku Band Off-set
receive antenna
WUXI HUAXIN RADAR ENGINEERING CO.,LTD
WD120/Ku-P-I
Ku-Band LNB
PBI GOLD 1040
PBI
1
DVB Reception PC Card
Coship 2030S
SHENZHEN COSHIP
ELECTRONICS CO.,LTD
1
4
DVB Digital Satellite
Receiver
Coship CDVB2000D
5
TV
CHANGHONG CHD34J18S
6
DVD Player
CHANGHONG DVD589
PC (Satellite Receiving)
Founder E630/P4 2.66G/512M/120G
（7200rpm）/DVD/1.44M Floppy
Drive/MX4000 64M/10－100M LAN/17" CRT
Monitor
1
2
3
7
1
CHANGHONG ELECTRIC.
CO.,LTD
1
1
Founder Technology
Group Corp.
1
52
Accessories：Equipment model and
configuration
4: Satellite receiver system and multimedia
computer classroom(mode three)
No.
Equipments name
Model Description
1
1.2m C/Ku Band Off-set
receive antenna
WUXI HUAXIN RADAR ENGINEERING CO.,LTD
WD120/Ku-P-I
2
Ku-Band LNB
3
Equipments
manufactory
QTY
WUXI HUAXIN RADAR
ENGINEERING CO.,LTD
1
PBI GOLD 1040
PBI
1
DVB Reception PC Card
Coship 2030S
1
4
DVB Digital Satellite
Receiver
Coship CDVB 2000D
SHENZHEN COSHIP
ELECTRONICS CO.,LTD
5
TV
CHANGHONG CHD34J18S
1
6
DVD Player
CHANGHONG DVD589
CHANGHONG ELECTRIC.
CO.,LTD
PC (Satellite Receiving)
Founder Technology
Group Corp.
1
7
Founder E630/P4 2.66G/ 512M /120G（7200rpm）
/DVD/1.44M/ MX4000 64M/10－100M LAN /17" CRT
Monitor
Server
Founder MT100 1020/(Xeon) 2.8G/1GB（2*512M）
/SATA=80GB*2，RAID1/350W/LAN 10-1001000M*2/15" CRT Monitor /1.44M Floppy Drive
1
8
1
PC (for teacher)
Founder E630/P4 2.66G/ 512M /120G（7200rpm）
/DVD/1.44M/ MX4000 64M /10－100M LAN/17" CRT
Monitor
30
PC (for students)
Founder E330/（Celeron）2.13G/256M/40G
（7200rpm）/CD/1.44M/10－100M LAN/17" CRT
Monitor
9
10
1
1
53
Accessories：Equipment model and
configuration
4: Satellite receiver system and multimedia
computer classroom(mode three)
Huawei-3Com Technology Co.,
Ltd.
1
Panasonic PT-U1X88
Panasonic
1
Ceiling mount for
Projectors
Panasonic
Panasonic
1
14
Glass Beaded Screen
THREELEAVES 100”（2.08m×1.50m）
THREELEAVES
1
15
Digital Visualizer
Garsen FP490
Guangzhou Garsen Technology
Industrial Co., Ltd.
1
16
Center Control Systems
Ater HT1500+
Sichuan Ater
1
17
Black & white LaserJet
printers
HP LaserJet1020
HP
1
18
Audio systems
Sichuan Hushan Electronic
Co., Ltd.
1
19
AC regulated power supply
Output power
KSTAR
1
20
UPS
KSTAR Pro2050
KSTAR
1
21
Net Rack
6U
Beijin Sansheng
1
11
Switch
Huawei-3Com QuidWay® S1048
12
Multimedia Projectors
13
Sichuan Hushan Audio systems
≥15KVA
54
Accessories：Equipment model and
configuration
5: Satellite two way system and multimedia
computer classroom(mode four)
No.
Equipments name
Model Description
Equipments
manufactory
QTY
Broadband VSAT Network ---- ViaSat LinkStar™
1
2W LinkStar ORU
（Outdoor RF unit）
LinkStar
1
2
LinkStar RCST
（Satellite Modem）
LinkStar
1
WUXI HUAXIN
RADAR
ENGINEERING
CO.,LTD
1
CHANGHONG
ELECTRIC.
CO.,LTD
1
Founder
Technology
Group Corp.
1
Other Equipments
WUXI HUAXIN RADAR ENGINEERING CO.,LTD
WT180/Ku-H-Ⅱ
1
1.8m Ring-focus
Tx&Rx antenna
2
TV
CHANGHONG CHD34J18S
3
DVD Player
CHANGHONG DVD589
4
PC (Satellite
Receiving)
Founder E630/P4 2.66G/ 512M /120G（7200rpm）/DVD/1.44M/
MX4000 64M/10－100M LAN /17" CRT Monitor
5
Server
Founder MT100 1020/(Xeon) 2.8G/1GB（2*512M）/SATA=80GB*2，
RAID1/350W/LAN 10-100-1000M*2/15" CRT Monitor /1.44M
6
PC (for teacher)
Founder E630/P4 2.66G/ 512M /120G（7200rpm）/DVD/1.44M/
MX4000 64M /10－100M LAN/17" CRT Monitor
1
7
PC (for students)
Founder E330/（Celeron）2.13G/ 256M/40G（7200rpm）
/CD/1.44M/10－100M LAN/17" CRT Monitor
30
55
1
1
Accessories：Equipment model and
configuration
5: Satellite two way system and multimedia
computer classroom(mode four)
Huawei-3Com Technology Co.,
Ltd.
1
Panasonic PT-U1X88
Panasonic
1
Ceiling mount for Projectors
Panasonic
Panasonic
1
11
Glass Beaded Screen
THREELEAVES 100”
（2.08m×1.50m）
THREELEAVES
1
12
Digital Visualizer
Garsen FP490
Guangzhou Garsen Technology
Industrial Co., Ltd.
1
13
Center Control Systems
Ater HT1500+
Sichuan Ater
1
14
Black & white LaserJet
printers
HP LaserJet1020
HP
1
15
Scanner
Tsinghua Unisplendour
Uniscan B980
Tsinghua Unisplendour
Corporation Limited
1
16
Audio systems
Sichuan Hushan Electronic Co.,
Ltd.
1
KSTAR
1
17
AC regulated power supply
18
UPS
KSTAR Pro2050
KSTAR
1
19
Net Rack
6U
Beijin Sansheng
1
8
Switch
Huawei-3Com QuidWay® S1048
9
Multimedia Projectors
10
Sichuan Hushan Audio systems
Output power
≥15KVA
56
Accessories：Equipment model and
configuration
6: Satellite two way system 、videoconference and
multimedia computer classroom(mode five)
No.
Equipments name
Model Description
Equipments
manufactory
QTY
Broadband VSAT Network ---- ViaSat LinkStar™
2W LinkStar ORU
（Outdoor RF unit）
LinkStar
1
1
LinkStar
1
2
LinkStar RCST
（Satellite Modem）
VCON
1
SONY
1
Videoconferencing Systems ---- Emblaze-VCON
1
VCON
Videoconferencing
terminal HD100
high-quality IP videoconferencing systems
2
Cameras
SONY D100
Other Equipments
1
1.8m Ring-focus
Tx&Rx antenna
WUXI HUAXIN RADAR ENGINEERING CO.,LTD
WT180/Ku-H-Ⅱ
WUXI HUAXIN RADAR
ENGINEERING CO.,LTD
1
2
TV
CHANGHONG CHD34J18S
1
3
DVD Player
CHANGHONG DVD589
CHANGHONG ELECTRIC.
CO.,LTD
157
Accessories：Equipment model and
configuration
6: Satellite two way system 、videoconference and
multimedia computer classroom(mode five)
PC (Satellite Receiving)
Founder E630/P4 2.66G/ 512M /120G
（7200rpm）/DVD/1.44M/ MX4000 64M/10－
100M LAN
1
Server
Founder MT100 1020/(Xeon) 2.8G/1GB
（2*512M）/SATA=80GB*2，RAID1/350W/LAN
10-100-1000M*2/15“/1.44M Floppy Drive
1
PC (for teacher)
Founder E630/P4 2.66G/ 512M /120G
（7200rpm）/DVD/1.44M/ MX4000 64M /10－
100M LAN
30
7
PC (for students)
Founder E330/（Celeron）2.13G/
256M/40G（7200rpm）/CD/1.44M/10－100M
LAN/17" CRT Monitor
8
Switch
Huawei-3Com QuidWay® S1048
9
Multimedia Projectors
10
11
4
5
6
Founder Technology
Group Corp.
1
Huawei-3Com Technology
Co., Ltd.
1
Panasonic PT-U1X88
Panasonic
1
Ceiling mount for
Projectors
Panasonic
Panasonic
1
Glass Beaded Screen
THREELEAVES 100”（2.08m×1.50m）
THREELEAVES
1
58
Accessories：Equipment model and
configuration
6: Satellite two way system 、videoconference and
multimedia computer classroom(mode five)
Garsen FP490
12
Digital Visualizer
13
Center Control Systems
14
Black & white LaserJet
printers
15
Scanner
Guangzhou Garsen
Technology Industrial
Co., Ltd.
1
Sichuan Ater
1
HP
1
Tsinghua Unisplendour
Uniscan B980
Tsinghua Unisplendour
Corporation Limited
1
Sichuan Hushan Audio systems
Sichuan Hushan
Electronic Co., Ltd.
1
KSTAR
1
KSTAR
1
Beijin Sansheng
1
Ater HT1500+
HP LaserJet1020
16
Audio systems
17
AC regulated power supply
Output power
18
UPS
KSTAR Pro2050
19
Net Rack
6U
≥15KVA
59
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