SJ/T 11979-2025 Video Surveillance SSD Specification

Standard Catalog

The standard consists of the following main sections:

• 1 Scope 1

• 2 Normative References 1

• 3 Terms and Definitions 1

• 4 General Principles 2

• 5 Technical Requirements 2

• 5.1 Appearance 2

• 5.2 Functions 2

• 5.2.1 Status Monitoring and Alarm 2

• 5.2.2 Data Interface 2

• 5.2.3 Operation and Maintenance Management 2

• 5.3 Performance 2

• 5.3.1 Storage Capacity 2

• 5.3.2 Power Consumption 3

• 5.3.3 Steady-state Performance 3

• 5.3.4 Maximum Response Time 3

• 5.3.5 Power-loss Data Protection 3

• 5.3.6 Error Rate 3

• 5.3.7 Total Bytes Written 4

• 5.4 Reliability 4

• 5.4.1 Data Retention Time 4

• 5.4.2 Mean Time Between Failures 4

• 5.5 Safety 4

• 5.5.1 Basic Requirements 4

• 5.5.2 Electrical Energy Source and Protection 5

• 5.5.3 Power Supply Adaptability 5

• 5.5.4 Data Security 5

• 5.5.5 Climatic Environment Adaptability 5

• 5.5.6 Mechanical Environment Adaptability 5

• 5.6 Electromagnetic Compatibility 5

• 6 Test Methods 5

• 6.1 Test Environment 6

• 6.2 Appearance 6

• 6.3 Functions 6

• 6.4 Performance 6

• 6.4.1 Storage Capacity 6

• 6.4.2 Power Consumption 6

• 6.4.3 Steady-state Performance 7

• 6.4.4 Maximum Response Time 8

• 6.4.5 Power-loss Data Protection 8

• 6.4.6 Error Rate 9

• 6.4.7 Total Bytes Written 9

• 6.5 Reliability 10

• 6.6 Safety 11

• 6.7 Electromagnetic Compatibility 14

• 7 Quality Assessment Procedures 14

• 7.1 General Rules 14

• 7.2 Inspection Classification 14

• 7.3 Type Inspection 15

• 7.4 Quality Conformance Inspection 15

• 8 Marking, Packaging, Transportation and Storage 16

• 8.1 Product Marking Requirements 16

• 8.2 Packaging Marking Requirements 16

• 8.3 Documents Included in Packaging 16

• 8.4 Transportation 16

• 8.5 Storage 16