GB/T 3384-1982
Abolished
DB4403/T 27-2019
Active
Guangdong ProvinceLocal standards
DB4403/T 27-2019 Urban rail transit police security and communication system technical specifications
DB4403/T 27-2019 Urban rail transit police security and communication system technical specifications
Price:
$ 30
Basic Information
Standard Code:
DB4403/T 27-2019
Standard Type:
Local standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Social public safety
ICS Name:
Data communication network
Publish Date:
2019-08-26
Implement Date:
2019-09-01
Pages:
23 pages
Scope
This standard applies to the construction of the police security and prevention system and communication system for urban rail transit in Shenzhen City. Commercial areas connected to urban rail transit shall refer to and implement this standard accordingly.
Development Information
Replace the following standards
SZDB/Z 11-2008
Related Standards
GB/T 4575-1984
Abolished
GB/T 4575-1984 Frequency comparison pilot series for the FDM systems in the toll communication network
GB/T 4827-1984
Abolished
GB/T 4827-1984 Requirements of data transmission at 50 bit/s
GB/T 7436-1987
Active
GB/T 7436-1987 Specifications of TDM equipment operating on an analog telephone-type circuit for telegraph and lower-speed data
GB/T 7555-1987
Abolished
GB/T 7555-1987 General characteristics complying with the network performance objectives for 12 channel carrier telephone systems on open-wire pairs
GB/T 7556-1987
Abolished