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MH/T 5021-2004 Design code for generic cabling system of civil airport terminal building has been implemented since May 1, 2004, which has met the needs of airport construction for a period of time and played an important role in guiding the engineering design of generic cabling system engineering of civil airport terminal building in China. With the rapid development of airport business and weak current technology in recent years, the code has lagged behind the needs of actual design work, so it was revised and renamed as Design code for generic cabling system engineering of civil airport terminal building.
During the process of developing this code, the opinions of relevant units and experts were extensively solicited, and finalized the code through review.
This code consists of 6 clauses. The main contents include: general provisions, terms and abbreviations, system design, system configuration design, design requirements for installation process, lightning protection, grounding, etc.
During the process of developing this code, modifications and supplements were made on the basis of maintaining the basic framework of the original code, which are mainly reflected in the following aspects:
——The relevant contents of terms and abbreviations are adjusted and supplemented;
——The technical requirements for the generic cabling system design of the terminal building are supplemented, and the distribution requirements for the relevant functional areas of the terminal building are put forward.
The first clause of this code is written by Pan Xiangqian, the second by He Min, the third by Pan Sutan, the fourth by Song Yanping, the fifth by Cai Zhenhe and the sixth by Pan Xiangqian and Shi Yongtao.
Design code for generic cabling system of civil airport terminal building was first published in 2004. The chief development organization is China Civil Airport Equipment Co., LTD., and the chief drafter is Shan Jilai. This edition is the first revision.
Design code for generic cabling system engineering of civil airport terminal building
1 General provisions
1.0.1 This code is formulated to guide and standardize the design of generic cabling system of civil transport airport terminal building and promote the construction of generic cabling system of civil transport airport terminal building.
1.0.2 This code is applicable to the design of generic cabling system and system upgrading of new terminal building of civil transport airport (including civil part of military & civil airport). The upgrading of the original system may be implemented with reference to this code.
[Explanation of Provisions] The newly-built generic cabling system of the terminal building refers to the newly-built system in airport construction, reconstruction, extension and relocation projects.
1.0.3 The design of the generic cabling system of the terminal building shall aim at the specific characteristics of civil transport airports, and be "safe and applicable, advanced in technology, economical and reasonable, environment protecting, and easy to expand".
1.0.4 In addition to this code, the design of generic cabling system of the terminal building shall meet the relevant current national provisions or standards.
2 Terms and abbreviations
2.1 Terms
2.1.1
cabling system
cabling system which adopts modular structure and uses various cables, jumpers, patch cable and connecting hardware to provide a set of standard signal transmission channel system for voice and data equipment in the terminal building
2.1.2
telecommunications room
special room where distributor is placed and cables are cross-connected
?
2.1.3
work area
independent area which is provided with terminal equipment
2.1.4
channel
end-to-end transmission channel connecting two application devices, including equipment cable, optical cable of equipment, cable and optical cable of work area
2.1.5
link
transmission line such as CP link or permanent link
2.1.6
permanent link
transmission line between the telecommunications outlet and the floor distributor, which the work area cables, equipment cables connecting the floor distribution room and jumpers are not included, but a CP link is included
2.1.7
consolidation point (CP)
connection point in horizontal cable route between floor distributor and work area telecommunications outlet
2.1.8
cp link
permanent link between floor distributor and CP, including connecting hardware at each end
2.1.9
campus distributor
distributor that terminates the campus backbone cable
2.1.10
building distributor
distributor that terminates the building backbone cable or campus backbone cable
2.1.11
floor distributor
distributor for terminating horizontal cables, horizontal optical cables and other cabling subsystem cables
?
2.1.12
connecting hardware
device or group of devices which used to connect cable pairs with optical fibers
2.1.13
optical fiber connector
device that connects one or two pairs of optical fiber connectors
2.1.14
campus backbone cable
cables and optical cables connecting building distribution frames with building distribution frames in campus
2.1.15
horizontal cable
connecting cables from floor distributor to telecommunications outlet
2.1.16
telecommunications outlet (TO)
telecommunications outlet module for termination of various cables or optical cables
2.1.17
jumper
connecting cables between distributors
2.1.18
cable
cable or optical cable which composed of one or more pairs of the same type in a sheath
2.1.19
optical cable
cable consisting of a single or multi-core optical
2.1.20
cable unit
combination of cable pairs or optical fibers of the same model and category
2.1.21
pair
two conductors in a balanced transmission line which generally refer to twisted pairs
2.1.22
balanced cable
symmetrical cable consisting of one or more pairs of metal conductors
2.1.23
screened balanced cable
balanced cable with general screened and/or screen for each pair
2.1.24
unscreened balanced cable
balanced cable without screen
2.1.25
patch cable
flexible cables or optical cables with connecting hardware at the ends
2.1.26
multi-user telecommunications outlet
combination outlets of telecommunications outlet modules
2.1.27
cross-connect
distributor and communication equipment which are connected by connecting hardware on patch cables or jumpers
2.2 Abbreviations
Table 2.2 Abbreviations
Abbreviation English name Chinese name or explanation
ACR Attenuation to Crosstalk Ratio 衰減—串音衰減比率
BD Building Distributor 建筑物配線設(shè)備
CD Campus Distributor 建筑群配線設(shè)備
CP Consolidation Point 集合點(diǎn)
ELFEXT Equal level far end crosstalk attenuation (loss) 等電平遠(yuǎn)端串音衰減（損耗）
FD Floor Distributor 樓層配線設(shè)備
FEXT far end crosstalk attenuation (loss) 遠(yuǎn)端串音衰減（損耗）
HUB HUB 集線器
IEC International Electronical Commission 國(guó)際電工技術(shù)委員會(huì)
IL Insertion loss 插入損耗
IP Internet Protocol 因特網(wǎng)協(xié)議
ISO International organization for Standardization 國(guó)際標(biāo)準(zhǔn)化組織
RL Return loss 回波損耗
TE Terminal equipment 終端設(shè)備
TO Telecommunication Outlet 信息點(diǎn)(電信引出端)
Vr.m.s Vroot. Mean. Square 電壓有效值
3 System design
3.1 General requirements
3.1.1 The engineering design of the generic cabling system of the terminal building shall be carried out according to the nature, function, environmental conditions and the short-term and long-term user needs of the project, and the convenience of construction and maintenance shall be considered to ensure the safety and quality of the generic cabling system engineering, and the design of the generic cabling system of the airport campus shall be planned as a whole.
3.1.2 The generic cabling system shall be planned s a whole and coordinated with the telecommunication system, weak current system, public safety system and building equipment management system, and the design shall be optimized according to the transmission requirements of each system.
3.1.3 In the engineering design of generic cabling system, a unified service platform shall be provided for multiple telecom operators.
3.2 System composition
3.2.1 The generic cabling system shall support the transmission of information such as voice, data, image and multimedia services. The network structure of the generic cabling system shall be an open topological structure, which shall meet the design requirements of each network of the terminal building.
3.2.2 The engineering of generic cabling system shall be designed according to the following seven parts:
1 Subsystem of work area——composed of connecting cables and connectors extending from the telecommunications outlet module of the distribution subsystem to the terminal equipment.
2 Distribution subsystem——composed of telecommunications outlet module in the work area, distribution cable and optical cable from telecommunications outlet module to distributor in telecommunications room, distributor and equipment cables and jumpers in telecommunications room, etc.
3 Backbone cabling subsystem——composed of backbone cables and optical cables from equipment room to telecommunications room, building distributor installed in equipment room, equipment cables and jumpers.
4 Campus subsystem——composed of backbone cables and optical cables connecting several airport buildings, campus distributor and equipment cables and jumpers.
5 Equipment room subsystem——a room for network management and information exchange at appropriate locations of buildings such as terminal buildings. For the engineering design of generic cabling system, the equipment room is mainly used to install building distributor. Telephone exchange, computer host equipment and entrance facilities may also be set together with distributor.
[Explanation of Provisions] The equipment room of the terminal building generally refers to the weak-current engine room or weak-current host room, in which the main distribution room may usually be located.
6 Cable vault subsystem——it is set at the entrance of communication and information pipelines outside buildings such as terminal buildings, and may be used as the installation site for entrance facilities and distributors of some buildings.
7 Management subsystem——identify and record the distributors, cables, telecommunications outlet modules and other facilities in the work area, telecommunications room, equipment room and cable vault according to a certain mode.
3.2.3 The basic structure of the generic cabling system of terminal building is shown in Figure 3.2.3, in which CP may be set according to actual requirements.
Foreword ii
1 General provisions
2 Terms and abbreviations
2.1 Terms
2.2 Abbreviations
3 System design
3.1 General requirements
3.2 System composition
3.3 System indexes
3.4 Professional system cabling
3.5 Cabling of office area and commercial area
4 System configuration design
4.1 Subsystem of work area
4.2 Distribution subsystem
4.3 Backbone cabling subsystem
4.4 Airport campus subsystem
4.5 Subsystem of equipment room
4.6 Subsystem of cable vault
4.7 Management subsystem
5 Design requirements for installation process
5.1 Work area
5.2 Telecommunications room
5.3 Main cabling room
5.4 Cable vault
5.5 Cable laying
6 Lightning protection and grounding
6.1 Lightning protection
6.2 Grounding
Explanation of wording in this standard
List of quoted standards
