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Dr. Peng Data is a A shares

listed company and wholly-owned subsidiaries of Chengdu Dr. Peng

Telecom & Media (Group) Co., Ltd. (A shares

code: 600804) which engages in internet data center

service, under which organized equipment room and metropolitan

network resources of the original Beijing Teletron Telecom

engineering Co., Ltd. and CDN network resources of Shanghai DNION

Technology. It is the largest operator of data center

service in China being independent of telecom operators.

Dr. Peng has four major telecom

equipment rooms which are HP equipment room, Zhong Guan-cun

equipment room, Suzhouqiao equipment room and Sanyuanqiao equipment

room with a total area of nearly 13,000 m2. All the equipment rooms

locate within the Fourth Ring with superior geographical position

and convenient transportation which cover three business areas of

CBD of China World Trade Center, Zhong Guan-cun and Lufthansa

Center. It is the biggest operator in Beijing data center

market after Netcom. All the equipment rooms are established

according to the highest standard of telecom level and have series

high-level support facilities of double circuit power supply,

precision air-conditioning, gas fire extinguishing and

environmental monitoring and so on which will provide high-quality

IDC services for the users.

[Overview of

equipment room]

Zhong Guan-cun equipment room locates

at Zhong Guan-cun Technology Development Building (No. 32, South

Zhong Guan-cun Street, Haidian District, Beijing) with a total

building area of 3000 m2. Being the core telecom equipment room of

Dr. Peng at Zhong Guan-cun area, it covers the entire IT circle of

Zhong Guan-cun and the northwest of Beijing city which will provide

high-quality data center services for the users.

[Construction of

equipment room]

The equipment room

has a construction structure that has 8 level anti-earthquake

function and its bearing structure could reach to 800Kg/m2

Elevated static-free

floor is used in the equipment room and 4 walls of the room are

equipped with electromagnetic interference-resistant facilities

The space could be

flexibly separated and expanded according to the requirements of

users

[Network resources]

Have network

connections with China Telecom, China Unicom (Netcom), China Mobile

(Railway) and education network, etc. The total bandwidth capacity

could reach to 60G.

Establish BGP

interconnection with major telecom operators based on its

self-processed AS domain (Autonomous system number: 17964)

Multiple operator

resources and multiple network outlet line resources rapidly

realize mutual backup of WAN routing

[Network architecture]

Layering network

structure design including interconnection layer, core layer,

distribution layer and access layer

Fully redundant

network design (redundant equipment, interface, link and route) to

avoid single-point fault

Use international

Cisco Networkers equipments as the framework of network platform,

and CISC012000 and CISC06509 as the core network equipment, as well

as CISC03560 and CISC02960 as the access layer equipment

Main fiber is

designed to be switched into the equipment room in two different

directions to provide a higher level safety assurance

[Network security]

Network security

consultant and evaluation

Firewall service

Professional hardware

equipments protecting

against DDOS

attack

[Power supply]

Four power

protections realizes 99.99% level power supply safeguard

Double circuit 10KV

high voltage power supply and capacity in each circuit is

1200KVA

Four 400KVA Chloride

UPS equipment and 1+1 backup

Italy FLAMM battery

can provide power supply assurance that not less than 1 hour

One 1700KVA

German Benz MTU diesel electric generating set can make sure that

the equipment room could be powered continuously

[Equipment cabinet]

47U standard 19 inch

cabinet

The highest power

supply capacity of single cabinet

could reach

to 32A

Double circuit UPS

supply power to the cabinet

Cabinets have

separate switch control

[Air-conditioning system]

(Water cooled

air-conditioning + plate type heat interchanger) natural cooling

air-conditioning technology, the equipment room uses double cold

sources of central air conditioner and air-conditioning unit which

backup each other

18 Italy HIROSS air

conditioner and redundancy backup according to N+1

The air conditioner

uses double circuit redundant power supply

Cold and hot air

channel design with lower air supply and upper air returning

method

Temperature in the

equipment room maintains at 22℃±5 in 24 hours within weeks and

humidity level maintains at 50%±10%

[Fire extinguishing system]

Use fire-proof frame

and smoldering materials and the equipment room is equipped with

multiple escape trunks which comply with the telecom standard

Supersensitive laser

early smoke detection warning system

Use advanced FM200

heptafluoro-propane piping net gas fire extinguishing system

Be equipped with

manual gas fire extinguishing devices at several places

24-hour manual

monitoring on network operation center (NOC) and clear flammable

materials in time

[Security monitoring]

The video monitoring

tape data without dead angle of the

equipment

room shall be kept not less than three months.

The entrance guard

record data shall be kept not less than

one

year for access IC card entrance guard system

Security guards shall

be on duty in 24 hours with

weeks and implement strict access registration and management

measures

[Operation and maintenance

personnel]

International

approved senior network engineers (e.g. CCIE and CCNP, etc.) have

rich operation and maintenance experiences on network, system (NT,

Linux and Unix) and security, etc.

Senior utility

facilities maintenance support personnel on electrical power and

air-conditioning, etc. has many years maintenance experiences on

large-scale utility facilities

Provide 7×24-hour

professional services for users

[Customer service]

On-site equipment

room service

●

7×24-hour on-site technology support and

authorized operation service

●

Maintenance services of system software and

application software (e.g. installation and modulation, etc.)

●

Equipment operation condition monitoring

and emergency information service

Customer service

●

Senior customer service representatives provide

24-hour service

●

7×24-hour telephone helpline: 400-610-0008

●

Primary responsibility

Network support service

●

Emergency processing (e.g. DDOS attack)

●

7×24-hour technical support

●

Route optimization

资深IDC tel: 138 1153 3478

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