GA/T 1578-2019Specifications for construction of public security communication network for urban rail transit (English PDF)

7.1 Network composition

The urban railway public security wired communication network consists of digital transmission equipment, VoIP systems, and communication optical cables.

7.2 Functional requirements

7.2.1 Digital transmission equipment

7.2.1.1 Both the Ethernet service interface and the TDM service interface shall be provided.

7.2.1.2 Different types of services should be physically isolated through independent time slots or wavelengths to ensure that the various services in the digital transmission system are independent of each other Disturb.

7.2.1.3 Interconnection interfaces should be provided for public security information transmission equipment. The type and number of interfaces should be based on the equipment types and actual bandwidth requirements of both parties.

Seek choice.

7.2.1.4 At least one primary and one secondary E1 or FE port shall be provided for each node of the urban rail transit public security wireless communication network.

7.2.1.5 Each node of the urban rail transit public security information network shall be provided with at least one master and one backup 2 GE ports.

7.2.1.6 At least one master and one backup 2 GE ports shall be provided for each node of the urban rail transit public security video private network.

7.2.1.7 Transmission channels shall be reserved for the urban rail transit public security information network. The type, number and bandwidth of the interfaces shall be selected according to actual needs.

7.2.1.8 Equipment network management shall be configured with self-diagnostic functions, which can perform fault management, performance management, configuration management, and security management. should the interface that is interconnected with the upper-level network management is reserved to implement system fault alarm upload. The network management terminal should adopt a Chinese interface, and the interface should be concise and straightforward.

View and graphic.

7.2.1.9 It shall support physical layer clock synchronization technology, IEEE 1588 precision clock synchronization technology, synchronous Ethernet technology, etc.

7.2.1.10 The main units such as the main control, switching (crossover), and power supply of the equipment shall be backed up by 1 1 hot backup.

7.2.1.11 has redundancy protection function. When a network node device fails, other network node devices should be able to keep working normally.

And can be automatically switched when a single node or link fails.

7.2.1.12 It shall support relevant interfaces that comply with international standards, national standards and industry standards.

7.2.2 VoIP System

To provide internal fixed telephone communication services based on the IP method, it should follow the ITU-T H.323 or SIP standard protocol. It has configuration, statistics, Network management functions such as fault query and alarm.

7.2.3 Communication Optical Cable

It should meet the information transmission requirements of urban rail transit public security wireless communication network, public security video private network, and public security information network.

7.3 Performance requirements

7.3.1 Digital transmission equipment

7.3.1.1 Transmission performance

The following requirements should be met.

a) The real-time service two-way delay is not greater than 50ms, the jitter is not greater than 20ms, and the packet loss rate is not greater than 1 × 10-3;

b) The two-way delay of non-real-time services is not greater than 1.5s, the jitter is not greater than 1s, and the packet loss rate is not greater than 3 × 10-2;

c) The upper limit of the bit error rate of the TDM service is not greater than 1 × 10-6;

d) The upper limit of the packet loss rate of the Ethernet service is not greater than 1 × 10-3.

7.3.1.2 Bandwidth

Meets the following requirements.

a) The ethernet link bandwidth of the urban rail transit public security information network should not be less than 1000 Mbps;

b) The ethernet link bandwidth of the urban rail transit public security wireless communication network should not be less than 100 Mbps;

c) The ethernet link bandwidth of the urban rail transit public security video private network should not be less than 10 Gbps;

d) The UPS uninterruptible power supply in the auxiliary equipment and the Ethernet link bandwidth used for environmental monitoring should not be less than 100 Mbps;

e) Reserve the corresponding bandwidth according to actual needs.

7.3.1.3 Interface

Should adopt international standard agreement, meet the following requirements.

a) It has 10GE, GE, FE service interfaces and meets the requirements of IEEE 802.3;

b) It has E1 service interface and meets the requirements of ITU-T G.703.

7.3.1.4 Redundancy

Redundant protection switching time should not be greater than 50ms.

7.3.1.5 Synchronization

Provides no less than 2 synchronous clock input/output interfaces, and the single-shot time accuracy degradation should not be greater than 30ns.

7.3.1.6 QoS

Should have a QoS guarantee mechanism.

7.3.1.7 RAMS

The following requirements should be met.

a) Availability is not less than 99.999%;

b) MTTR is less than 2h;

c) MTBF is not less than 25000h.

7.3.2 VoIP System

7.3.2.1 Gatekeeper

The number of gateways managed by the gatekeeper should be no less than 300, and it should be scalable.

7.3.2.2 IP Voice Gateway (Gateway)

Provide POTS telephone interface and Ethernet interconnection interface. The Ethernet interface should comply with the Ethernet standard defined by IEEE 802.3.

7.3.3 Communication Optical Cable

It shall meet the requirements of 16.2 in GB 50157-2013.

7.4 Construction requirements

7.4.1 Digital transmission equipment

7.4.1.1 According to the type of bearer service and bandwidth requirements, SDH, MSTP, OTN and other standard equipment networking should be used, which should comply with YD/T 1948.1 YD/T 1948.2, YD/T 1948.3, YD/T 1948.4, YD/T 1948.5, YD/T 2484 and YD/T 2486.

7.4.1.2 It shall be independent from the dedicated (operating) communication transmission network of urban rail transit, and a dedicated optical network for public security communication of urban rail transit shall be established.

Fiber self-healing ring network.

7.4.1.3 The number of various service interfaces shall allow a margin of not less than 30%.

7.4.2 VoIP System

The voice gateway of the police station should provide no less than 100 POTS telephone interfaces and one Ethernet interface; the police gateway voice gateway should provide Less than 2 POTS telephone interfaces and 1 Ethernet interface.

7.4.3 Communication Optical Cable

7.4.3.1 One backbone optical cable shall be laid on the entire line of the urban rail transit, as the basic optical cable link, and each optical cable shall be no less than 96 cores. For stations with more than 20 stations (or the total line length is greater than 30 km), it is advisable to add one line in each direction.

In the 48-core long-distance optical cable, it solves the problem of excessive attenuation of the trunk optical path.

7.4.3.2 Each line of urban rail transit should be laid with no less than 24 core branch optical fiber cables in each station, which is used for the business between communication equipment in the station.

Service optical signal transmission.

7.4.3.3 All lines of urban rail transit should be laid with communication optical cables between the police equipment rooms at each interchange station, and the optical cables should not be less than 96 cores.

7.4.3.4 At least two suitable stations and stations should be selected to lay communication optical cables with relevant public security departments nearby. The optical cables should not be less than 96 cores.

7.4.3.5 The communication optical cable should consider the capacity requirement for optical signal forwarding, and plan the redundancy of the number of optical cable cores.

Expansion reserve.

7.4.3.6 Communication optical cables should be laid separately from strong power cables. When optical cables and power cables are laid on the same path, non-metallic reinforced cores should be used.

7.5 Maintenance and service life requirements

7.5.1 Maintenance requirements

After the construction of the urban rail transit public security wired communication network, it should be routinely inspected digital transmission equipment, VoIP system, Communication cable and other operating conditions.

7.5.2 Useful life

The following requirements should be met.

a) Digital transmission equipment. not less than 8 years;

b) VoIP system. no less than 8 years;

c) Communication optical cable. not less than 15 years.

8.1 Network composition

The urban rail transit public security information network consists of routers, switches, and computer terminals.

8.2 Functional requirements

8.2.1 It shall be networked with the local public security information network.

8.2.2 The routers and switches should have the Telecommunication Equipment Network Access License issued by the Ministry of Industry and Information Technology of the People's Republic of China.

8.2.3 The switching capacity, transmission rate and interface configuration of routers and switches shall meet the requirements of the local public security information network.

8.2.4 The established public security information network cannot meet the requirements for the use of new rail lines, and the equipment should be expanded.

8.2.5 Routers and switches should have Layer 2 switching and Layer 3 routing functions and should support MPLS forwarding functions.

8.2.6 Routers and switches shall support VLAN isolation, shall support stacking functions, and shall support link aggregation.

8.2.7 An independent urban rail transit public security information network management should be set up or shared with digital transmission equipment.

8.2.8 Information security functions such as security access control, network troubleshooting, and performance monitoring should be available.

8.3 Performance requirements

8.3.1 The performance of the router shall meet the requirements of YD/T 1096.

8.3.2 The performance of the switch shall meet the requirements of YD/T 1099.

8.4 Construction requirements

8.4.1 The computer terminal of the police station should be configured according to the size of the police station and police personnel. It should be equipped with no less than 20;

Should be configured with no less than two.

8.4.2 The police station and each police room are equipped with switches or routers. They should support a variety of uplink expansion cards and provide GE/10GE uplink interfaces.

The type and number of downlink interfaces are configured according to business needs and expansion requirements.

8.5 Maintenance and service life requirements

8.5.1 Maintenance requirements

After the construction of the urban rail transit public security information network, it is advisable to routinely inspect routers, switches, and computer terminals on a monthly/quarterly basis.

Equipment operation.

8.5.2 Useful life

The following requirements should be met.

a) router. no less than 8 years;

b) switch. not less than 8 years;

c) Computer terminal. not less than 5 years.

9.1 Network composition

The urban rail transit public security wireless communication network is mainly composed of switching centers, base stations, antenna feeder systems, network management terminals, dispatch terminals, and radio stations.

(Fixed and mobile).

9.2 Functional requirements

9.2.1 Call function

Narrowband voice communication should meet the requirements of GA/T 1056 and have the following functions.

a) voice single call;

b) voice group call;

c) late group call;

d) group call integration;

e) broadcast call;

f) emergency calls;

g) dynamic reorganization;

h) priority calling;

i) call time limit;

j) call restrictions;

k) call forwarding;

l) landline telephone call;

m) Restricted base station calls.

9.2.2 Group function

Independent grouping should be performed according to user needs.

9.2.3 Positioning function

It should have the following functions.

a) the base station positioning function of the underground radio station, confirming the base station registered by the radio station;

b) GPS/Beidou satellite positioning function of the ground radio station, confirm the latitude and longitude of the radio station.

9.2.4 Networking Functions

The urban rail transit public security wireless communication network should be interconnected with the local public security wireless communication network, and the area code and frequency should be considered uniformly.

Source allocation.

9.2.5 Extended functions

It should have the following functions.

a) upgrade and expansion of hardware and software;

b) Smooth upgrade to broadband systems.

9.2.6 Fault weakening function

When a network failure occurs, some advanced functions are gradually reduced and lost according to the type of failure, and basic communication services are retained.

9.2.7 Network Management Functions

It should have the following functions.

a) performance management;

b) configuration management;

c) topology management;

d) fault and maintenance management;

e) safety management;

f) User management.

9.2.8 Scheduling Function

It should have the following functions.

a) voice single call;

b) voice group call;

c) full voice call;

d) broadcast call;

e) designated area call;

f) short messages;

g) status messages;

h) monitoring, barge-in, forced dismantling;

i) environmental listening;

j) dynamic reorganization;

k) stun/resurrection/distance;

l) emergency alarm;

m) local recording;

n) Sound and light alarm.

9.2.9 Recording function

It should have the following functions.

a) Network-wide recording;

b) Storage of information such as call type, call status, and talk time;

c) Web access retrieval and playback;

d) Multiple storage methods.

9.3 Performance requirements

9.3.1 Basic performance

The following requirements should be met.

a) Cross-base station group call setup time is less than 300 ms;

b) The recording storage time is not less than 6 months.

9.3.2 Coverage

The following requirements should be met.

a) that the radio field edge field strength is limited to -95 dBm;

b) The radio signal coverage of the station platform and station hall is not less than 98%;

c) The radio signal coverage of the station entrance and exit passages, fire evacuation passages and tunnels shall not be less than 95%.

9.3.3 Performance of leaky coaxial cables

The following requirements should be met.

a) relevant requirements of YD/T 2491;

b) The requirements for the dedicated frequency band of the public security wireless communication network.

9.4 Construction requirements

9.4.1 The police wireless communication technology specified by the Ministry of Public Security shall be used, and the base stations and terminal equipment shall have the type approval issued by the relevant state departments.

certificate.

9.4.2 Fixed base stations should be used for ground coverage. Stations and tunnels should be covered by base stations. Station platforms, halls, entrances and exits should be accessible.

Roads, fire evacuation routes and other public areas should be covered by base stations or indoor distribution systems according to actual conditions.

9.4.3 Leaky coaxial cables should be used for tunnel sections, and signal relay equipment should be provided for longer tunnel sections to extend the coverage distance.

9.4.4 Main components shall support hot backup.

9.5 Maintenance and service life requirements

9.5.1 Maintenance requirements

After the construction of the urban rail transit public security wireless comm...