SJ 20773-2000 General specification for field optical cable opening connection system
Some standard content:
Military Standard of the Electronic Industry of the People's Republic of China FL5850
SJ20773--2000
General specification for field opening access system of optical fiber cable2000-10-20 release
2000-10-20 implementation
approved by the Ministry of Information Industry of the People's Republic of China 1 Specification
Subject content
1.2 Scope of application
Reference documents
3 Requirements
3.1 Product specification
Qualification appraisal
3.3 Design
3.4 Structure and size
3.5 Surface processing and coating
3.6 Heavy wind
3.7 Color
3.8 Marking and code
Safety
3.10 Maintainability
Interchangeability
Performance characteristics
Environmental requirements| |tt||Electromagnetic compatibility
3.15 Reliability
4 Quality assurance regulations
Inspection responsibilities,
Inspection categories
Inspection conditions:
4.4 Identification inspection
4.5 Quality consistency inspection
Packaging inspection
4.7 Inspection methods
5 Delivery preparation
5.1 Sealing and packaging
5.2 Packing
5.3 Transportation and storage
5.4 Marking
6 Notes
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General specification for field optical cable opening lead-in system for military standard of the electronics industry of the People's Republic of China specification for field opening access systemopticalfibercable1scope
SJ20773—2000
1.1subject content
This specification specifies the technical requirements, quality assurance regulations and delivery preparation of the terminal equipment of the field optical cable opening access system (hereinafter referred to as the system).
1.2scope of application
This specification is applicable to the optical communication equipment of the field optical cable opening access system used in the environment of the existing opening stations in the strategic network, and optical communication equipment for other purposes can also be used for reference. 2 Referenced Documents
GB3047.2--92 Basic Dimension Series of Panels, Racks and Cabinets with a Height of 44.45mm GB3047.4-86 Basic Dimension Series of Plug-in Boxes and Plug-ins with a Height of 44.45mm GB5081--85 Guidelines for the Collection of Data on Reliability, Validity and Maintainability of Field Work of Electronic Products GB6431-86 Basic Dimensions of Bar Racks for Communication Equipment GB7611-87 Network Digital Interface Parameters for Pulse Code Modulation Communication Systems GB/T12507-90 Part 1 General Specification for Optical Fiber and Cable Connectors GB/T15941-1995 Network Access Requirements for Synchronous Digital Hierarchy (SDH) Optical Cable Line Systems GB/T16814-1997 Measurement Methods for Synchronous Digital Hierarchy (SDH) Optical Cable Line Systems GJB151A-97 Requirements for electromagnetic emission sensitivity of military equipment and subsystems GJB152A--97 Measurement of electromagnetic emission sensitivity of military equipment and subsystems GJB179A-96 Count sampling inspection procedures and tables GJB367.1--87 General technical conditions for military communication equipment Design and manufacturing requirements GJB367.2--87 General technical conditions for military communication equipment Environmental test methods GJB367.3-87 General technical conditions for military communication equipment Reliability identification test and acceptance test methods GJB367.4--87 General technical conditions for military communication equipment Acceptance rules GJB367.5-87 General technical conditions for military communication equipment Packaging, transportation and storage requirements Relay group
Basic parameters of field integrated communication system
GJB I142.3—91
Maintainability test and assessment
GJB 2072—94
GJB3148—98General specification for optical fiber communication equipment Ministry of Information Industry of the People's Republic of China Issued on 2000-10-20 Implemented on 2000-10-20
3 Requirements
3.1 Product Specifications
SJ 20773-—2000
All requirements of products shall comply with the requirements of this specification and relevant product specifications (hereinafter referred to as product specifications). If the requirements of this specification are inconsistent with those of product specifications, the product specifications shall prevail. 3.2 Qualification Appraisal
Products submitted in accordance with this specification shall be qualified products or approved for finalization. 3.3 Design
3.3.1 System composition
The system can be composed of synchronous digital hierarchy (SDH, limited to 155520 Kbit/s) or plesiochronous digital hierarchy (PDH), field group channel and PCM equipment.
3.3.2 Standardization
The design and production of field optical cable opening and connection system should use standard parts, general parts and transfer parts to the maximum extent. 3.3.3 Interface
3.3.3.1155520Kbit/s optical interface
should meet the requirements of Article 7.1 of GB/T15941. 3.3.3.2155520 Kbit/s electrical interface
should meet the requirements of Article 8.2 of GBT 15941. 3. 3. 3.3.3PDH hop group optical interface
should meet the requirements of product specifications.
3. 3. 3. 434.368 Mbit/s interface
shall comply with the requirements of GB 7611.
3. 3. 3. 52.048 Mbit/s optical interface
shall comply with the requirements of 75 ohm unbalanced interface in GB 7611. 3.3.3.6 Field group line interface
shall comply with the requirements of GJB 1142.3.
3.3.3.764Kbit/s co-directional data interface
shall comply with the requirements of GB7611.
3.3.3.8 Voice interface
shall comply with the requirements of product specifications.
3.3.3.9 Network management interface
Should meet the requirements of product specifications.
3.3.4 Auxiliary functions
The equipment should have the following auxiliary functions when forming a system: a. Alarm: When the input electrical signal is interrupted, the receiving bit error rate appears BER ≥ 10-3, and the equipment itself fails, it should be able to send out an alarm signal:
b. Automatic monitoring: The equipment should be able to automatically diagnose the fault and locate it to the unit disk; c. Automatic or manual switching between the main and standby;
d. Duty telephone function;
e. Centralized monitoring interface for business data.
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3.3.5 Fault monitoring function
Should be able to monitor the following faults:
a. Power failure:
b, Input signal loss:
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c. Optical terminal bit error rate greater than 1×10-3.
3.3.6 The multiplexing method of business monitoring data and duty calls shall comply with the requirements of product specifications.
3.3.7 Light source
3.3.7.1 Nominal wavelength of light source
a. 1310 nm:
b. 1550 nm.
3.3.7.2 Light source type
a. Single-mode light emitting diode (SM-LED)
b. Single-mode laser diode (SM-LD).
3.3.8 Optical receiver type
a. 1310 nm wavelength PIN-FET receiving module: b. 1310 nm wavelength Ge-APD or InGaAsp-APD: c. 1550 nm wavelength PIN-FET receiving module: d. 1550 nm wavelength InGaAsp-APD. 3.3.9 Optical fiber connector
Unless otherwise specified in the contract, the optical fiber connector shall comply with the requirements of GB12507 and can be selected from the following three types: a. FC type;
b. FC/PC type;
C. FCIAPC type.
3.3.10 Thermal design
Should comply with the provisions of Article 1.13 of GJB 367.1. 3.3.11 Control devices and detection devices
Should comply with the provisions of Article 1.17 of GB 367.1. 3.3.12 Electrical assembly
shall comply with the provisions of Article 2.2 of GJB367.1. 3.3.13 Mechanical connection
shall comply with the provisions of Article 2.3 of G3B 367.1. 3.3:14 Welding
shall comply with the provisions of Article 2.4 of GJB 367.1. 3.3.15 Components, parts and materials
shall comply with the provisions of Chapter 3 of GJB 367.1. 3.4 Structure and size
The structure shall comply with the provisions of Article 1.15 of GJB 367.1, and the external dimensions shall comply with the provisions of GB3047.2, GB3047.4 and GB 6431 dimension series.
3.5 Surface treatment and coating
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shall comply with the provisions of Articles 2.5 and 2.6 of GJB 367.1. 3.6 Required quality
shall comply with the provisions of product specifications.
3.7 Color
The color of the equipment and the identification color of various indication signals shall comply with the provisions of Article 1.20 of GJB367.1. 3.8 Marking and code
Should comply with the provisions of Article 1.21 of GJB367.1. 3.9 Safety
3.9.1 Equipment safety
The equipment shall have the following safety measures:
The power supply of the equipment shall have protection measures for reverse polarity, overvoltage and overcurrent: a
b. The power supply shall have protection devices such as fuses, and the fuses shall be installed in places where they can be easily replaced; c. A grounding device shall be installed;
d. A lightning arrester shall be installed when required;
e. A device shall be provided to prevent wrong insertion.
3.9.2 Personnel safety
All exposed and easily accessible parts should be at ground potential during normal operation, and the housing, corners and edges of the optical terminal should be free of burrs, sharp edges and blades. 3.10 Maintainability
It should comply with the provisions of Article 1.6 of GJB367.1. Its mean repair time (MTTR) should not exceed 30min. 3.11 Interchangeability
It should comply with the provisions of Article 1.7 of GJB 367.1. 3.12 Performance characteristics
3.12.1 Output optical power (see Article 4.7.10.1) Output optical power ≥-5dBm.
3.12.2 Optical receiving sensitivity (see 4.7.10.2) PDH shall not be worse than -40 dBm when BER≤1x×10~10: SDH shall comply with the product specifications when BER≤1×10-. 3.12.3 Optical receiving dynamic range (see 4.7.10.3) PDH equipment shall have an optical receiving dynamic range of -3~-40 dBm when BER≤1×10-\: SDH equipment shall comply with the product specifications when BER≤Ix10-\. 3.12.4 Jitter (see 4.7.10.4)
3.12.4.1 PDH jitter performance
3.12.4.1.1 Maximum output jitter tolerance without input jitter The maximum output jitter tolerance without input jitter shall meet the requirements of 3.2.1.2 and 5.2.2 of GB7611. 3.12.4.1.2 Input jitter drift tolerance
Input jitter drift tolerance shall meet the requirements of 3.2.2.3 and 5.3.3 of GB7611. 3.12.4.1.3 Jitter transfer characteristics
Jitter transfer characteristics shall be less than -1dB.
3.12.4.2SDH jitter performance
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Should meet the requirements of Article 11.2 of GB/T15941, 3.12.5 Power supply requirements (see Article 4.7.10.5) AC power supply voltage: 220V+20%50±3Hz DC power supply voltage: +24V±20% -48V±20% The equipment can be powered by AC or DC, and the error performance will not be affected when the AC and DC power supply are automatically switched according to the power supply situation.
3.13 Environmental requirements
Under the specified conditions, the performance characteristics and mechanical properties of the equipment after the test shall meet the requirements of Article 3.12. 3. 13.1 Low temperature test
Should meet the requirements of Chapter 3 of GJB367.2 &401 Low temperature test "ground communication equipment vehicle-mounted type". 3.13.2 High temperature test
shall meet the requirements of Chapter 3 of "402 High temperature test" of GJB367.2 for ground communication equipment on vehicle. 3.13.3 Impact test
shall meet the requirements of basic design test in Chapter 4 of "408 Impact test" of GJB367.2 for severe level table 408-1.
3.13.4 Vibration test
shall meet the requirements of line Y in Chapter 4 of "409 Vibration test" of GJB367.2 for severe level table 409-1. 3.13.5 Wet heat test
shall meet the requirements of Chapter 3 of "411 Heat test" of GJB367.2 for ground communication equipment on vehicle. 3.13.6 Fungus test
shall meet the requirements of Chapter 3 of "412 Fungus test" of GJB367.2. 3.13.7 Salt spray test
shall meet the requirements of Chapter 3 of "413 Salt Spray Test" in GJB367.2. 3.13.8 Transportation test
shall meet the requirements of Chapter 3 of GJB 367.5. 3.14 Electromagnetic compatibility
3.14.1 The conducted emission of power lines and interconnecting lines shall comply with the provisions of CE101 in GJB151A. 3.14.2 The conducted sensitivity of power lines shall comply with the provisions of CS101, CS102 and CS106 in GJB151A. 3.14.3 The conducted sensitivity of power line spike signals shall comply with the requirements of CS106 in GJB151A. 3.14.4 The radiated sensitivity of magnetic induction field shall comply with the requirements of RS101 in GJB151A. 3.14.5 The radiated sensitivity of induction field of spike signals and power frequency shall comply with the requirements of RS101 in GJB15IA.
3.14.6 The sensitivity of electric field radiation shall meet the requirements of RS103 in GJB151A. 3.15 Reliability
The lower limit of the mean time between failures (MTBF) of the system shall not be less than 80201. 4 Quality Assurance Provisions
4.1 Inspection Responsibility
Unless otherwise specified in the contract or order, the contractor shall be responsible for completing all inspections specified in this specification. If necessary, the orderer or the superior appraisal agency has the right to inspect any inspection item specified in this specification. 4.1.1 Qualification Responsibility
The equipment must meet all the requirements of Chapter 3 and Chapter 5. The inspections specified in this specification shall become an integral part of the contractor's entire inspection system and quality outline. If the contract includes inspection requirements not specified in this specification, the contractor shall also ensure that the products submitted for acceptance meet the contract requirements. Quality consistency sampling does not allow the submission of products that are known to be defective, nor can the ordering party be required to accept defective products. 4.t.2 Test and inspection equipment
Test, measurement and inspection equipment shall be provided and maintained by the contractor. These equipment shall have good performance and be able to complete the required inspections.
4.2 Inspection classification
The inspections specified in this specification are divided into:
a. Appraisal inspection;
b. Quality consistency inspection.
4.3 Inspection conditions
Unless otherwise specified, various inspections shall be carried out in accordance with the conditions specified in Article 1.8 of GJB367.4. 4.4 Appraisal inspection
Appraisal inspection is generally carried out when the equipment is designed and finalized for production, but when there are major changes in the main design, technology, components and materials of the equipment that affect the important performance of the equipment and make the original appraisal conclusion no longer valid, appraisal inspection shall also be carried out.
The identification test shall be carried out in a laboratory approved by the ordering party or the superior identification agency. 4.4.1 Number of samples
The number of samples shall be clearly determined in the product specification or order contract. 4.4.2 Inspection items
The identification test shall be carried out according to the items in Table 1.
4.4.3 Qualification criteria
When all inspection items meet the requirements of Chapter 3 and Chapter 5, the identification test is considered to be qualified. If any inspection item does not meet the specified requirements, the inspection shall be suspended. The contractor shall analyze the unqualified items, find out the causes of the defects and take corrective measures. The unqualified items and related items may be inspected. If all inspection items meet the specified requirements after continued inspection, the identification test is still considered to be qualified: If there is still an item that does not meet the specified requirements, it is considered to be unqualified. 4.4.4 Maintenance of identification qualification
In order to maintain the identification qualification, the contractor shall submit test data to the competent authority every year. 4.5 Quality consistency inspection
4.5.1 Inspection Grouping
Quality consistency inspection is divided into A, B, C and D grades. 4.5.2 Formation of inspection batch
The formation of inspection batch shall comply with the provisions of Article 5.4.6 of GJB179A 4. 5. 3 Group A inspection
4.5.3.1 Inspection items
Group A inspection items are shown in Table 1.
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4.5.3.2 Sampling plan
100% of the inspection batch products submitted by the contractor shall be subject to Group A inspection. The batch quality is expressed by the number of defects per 100 units of products. The acceptable number of defects per 100 units of products and their defect classification shall be specified by the product specifications. 4.5.3.3 Qualification criteria
The whole batch evaluation method shall be adopted for each unit to eliminate defective products. According to the inspection results, if the number of defects found is equal to or less than the specified value, the batch of Group A is judged to have passed the inspection; otherwise, the batch of Group A is judged to have failed the inspection.
4.5.3.4 Re-inspection
For batches that fail the Group A inspection, the contractor shall analyze the batch of equipment, find out the cause of the defects and take corrective measures before resubmitting for inspection. The resubmitted batch shall be separated from the new batch and marked as "resubmitted batch", and a stricter inspection shall be adopted.
If the re-inspection is qualified, the batch of Group A is still judged to have passed the inspection; if the re-inspection is still unqualified, the batch of Group A is judged to have failed the inspection.
Inspection Items
Structure and Size
Surface Processing and Coating
Marking and Code
Safety
Maintenance
Interchangeability
Output Optical Power
Optical Receiving Sensitivity
Optical Receiving Dynamic Range
Low Temperature Test
Commercial Temperature Test
Shock Test
Vibration Test
Wet Heat Test
Mold Test
Salt Test
Quality Consistency Inspection
Chapter Number
Test Method
Chapter Number
Transportation Test
Electromagnetic Compatibility
Reliability
Packaging Inspection
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Continued Table 1
Quality consistency inspection
Note: The symbol "○" in the table indicates a mandatory item; "△" indicates an optional item; "二\" indicates an optional item. 4.5.4 Group B inspection
4.5.4. tInspection items
The inspection items for Group B are shown in Table 1.
4.5.4.2 Sampling plan
Chapter number
Test method
The sampling plan shall be carried out in accordance with the provisions of GJB179A. A normal inspection sampling plan of general inspection level II is adopted, and the defect classification is determined by the product specification. The acceptable quality level (AQL) is as follows: severe defects: 4.0, 6.5, 10.0:
minor defects: 10.0, 15.0, 25.0.
4.5.4.3 Qualification criteria
According to the inspection criteria, if the number of defects found is less than the qualified judgment number, the batch of Group B inspection is judged to be qualified; otherwise, the batch of B is judged to be unqualified. If the batch fails the Group B inspection,
there are no fatal defects in the Group B inspection. Once a fatal defect is found, the batch will be rejected. 4.5.4.4 Re-inspection
For batches that fail the Group B inspection, the contractor should analyze the batch of equipment, find out the reasons and take corrective measures, and then resubmit for inspection. During re-inspection, the resubmitted batch should be separated from the new batch and marked with "resubmitted batch", and a stricter inspection should be adopted:
If the re-inspection is qualified, the batch is still judged to have passed the Group B inspection; if the new inspection is still unqualified, the batch is judged to have failed the Group B inspection.
4.5.5 Sample processing for Group A and Group B inspections
If defective products are found in the batches that pass the Group A and Group 1B inspections, the contractor should be responsible for repairs and meet the requirements of the product specifications before delivery in batches according to the contract or order. 4.5. 6 Group C Inspection
Group C inspection shall be conducted on products that have passed the inspection of Group A and Group B: 4.5.6.1 Inspection Items
Group C inspection items are shown in Table 1.
4.5.6.2 Sampling Plan
The sampling plan shall be conducted in accordance with the provisions of GJB179A, and a normal inspection sampling plan of special inspection level S-1 shall be adopted. The defect classification shall be specified by the product specification. The acceptable quality load level (AQL) is selected from the following: serious defects: 4.0, 6.5, 15.0; minor defects: 15.0, 25.0, 65.0. 4.5. 6. 3 Qualification criteria SJ 20773-2000 According to the inspection results, if the number of defects found is not greater than the qualified number, the C group inspection is judged to be qualified: otherwise, the C group inspection is judged to be unqualified. 4.5: 6.4 Re-inspection If the sample fails the C group inspection, the acceptance and delivery of the equipment should be stopped, and the contractor should notify the appraisal agency of the unqualified situation. After finding out the cause and taking corrective measures, it can be resubmitted for inspection. When re-inspecting, the number of samples should be increased. Re-inspection shall be conducted in accordance with the opinions of the ordering party or the appraisal organization, with all tests or inspections, or only on the items that do not meet the standards.
If the re-inspection is qualified, the C group inspection is still considered qualified. If the re-inspection is still unqualified, the unqualified situation shall be notified to the appraisal organization.
4.5.6.5 Sample processing
Unless otherwise specified, the sample that has passed the C group inspection can be delivered according to the contract or order after the contractor repairs the discovered or potential damage and passes the A and B group inspections. 4.5.6.6 Inspection cycle
The C group inspection cycle is 12 months. bzxZ.net
4.5.7 D group inspection
D inspection shall be conducted on the products that have passed the A and B group inspections. 4.5.7.1 Inspection items
The D group inspection items are shown in Table 1.
4.5.7.2 Sampling plan
Group D inspection samples shall be randomly selected from the samples of the qualified batches of Group A inspection and Group B inspection. The number of samples shall be specified by the product specification. When reliability tests cannot be carried out for small batches, the on-site reliability data collection method can also be used in accordance with the provisions of GB5081.
4.5.7.3 Unqualified
If the sample fails the Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the superior appraisal agency of the unqualified situation. After taking corrective measures, all tests or inspections shall be carried out again according to the opinions of the superior appraisal agency, or only the unqualified items shall be tested or inspected. If the test is still unqualified, the unqualified situation shall be notified to the superior appraisal agency.
4.5.7.4 Sample processing
Unless otherwise specified, the sample contractor who has passed the D group inspection shall be responsible for repairing and replacing parts that have consumed all or most of the design service life, and can be delivered according to the contract or order after passing the A and B group inspections. 4.5.7.5 Inspection cycle
The D group inspection cycle is 12 months, but when there are major changes in the main design, process, components and raw materials of the equipment that have a significant impact on the performance of the equipment, the D group inspection should also be carried out. 4.6 Packaging inspection
Carry out in accordance with the provisions of Chapter 6 of GJB367.5. 4.7 Inspection method
4.7.1 Design
Inspect and review according to the design documents.
4.7.2 Structural dimension inspection
Use measuring tools for actual measurement.
4.7.3 Surface processing and coating inspection
Use visual inspection.
4.7.4 Weight check
Check with a weighing instrument.
4.7.5 Color check
Check according to product specifications.
4.7.6 Mark and code check
Check according to product specifications.
4.7.7 Safety test
4.7.7.1 Equipment safety test
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a. After the equipment is tested for reverse polarity connection, overvoltage and overcurrent protection, check whether the equipment works normally; b. The equipment plug-in is tested for reverse and wrong insertion to check whether the equipment is damaged; c. The lightning test of the equipment is carried out according to product specifications: d. After the equipment is installed normally, the grounding resistance of the externally accessible part to the ground should be less than 3. 4.7.7.2 Personnel safety
Inspect and test according to product specifications. 4.7. B Maintainability test
Perform the test in accordance with the method in A3 of Appendix A of GB 2072. 4.7.9 Interchangeability inspection
After swapping parts, assemblies, optical fiber connectors and spare parts with the same functions, check their performance without adjusting the interchangeable parts.
4. 7.10 Performance characteristic test method
4.7.10.1 Output optical power
The output optical power of PDH equipment shall be measured in accordance with method 4.7.6.2 of GJB3148; the output optical power of SDH equipment shall be measured in accordance with method 3.1 of GB/T16814. 4.7.10.2 Optical receiving sensitivity
The optical receiving sensitivity of PDH equipment shall be measured in accordance with method 4.7.6.3 of GJB3148; the optical receiving sensitivity of SDH equipment shall be measured in accordance with method 3.8 of GB/T16814. 4.7.10.3 Optical receiving dynamic range
The optical receiving dynamic range of PDH equipment shall be measured according to the method in 4.7.6.4 of GJB3148: The optical receiving dynamic range of SDH equipment shall be measured according to the method in 3.9 of GB/T16814. 4. 7.10.4 Jitter
4.7.10.4.1 PDH jitter performance measurement
4.7.10.4.1,1 The maximum output jitter tolerance without input jitter shall be measured according to the method in 4.7.6.5 of GJB 3148. 4.7.10.4.1.2 The input jitter drift tolerance shall be measured according to the method in 4.7.6.5.1 of GJB3148. 4.7.10.4.1.3 Jitter transfer characteristics
According to the method in 4.7.6.5.2 of GJB 3148. - 10 -
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