SJ 20661-1998 General specification for airborne ultra-short wave radio confidentiality machine
Some standard content:
Military standard for electronic industry of the People's Republic of China FL5810
SJ 20661 1998
General specification for ciphering setfor airborne VHF/UHF radic
Published on 199803~11
Implemented on 1998-05-01
Approved by the Ministry of Electronic Industry of the People's Republic of China 2
Referenced documents
Quality assurance provisions
Delivery preparation
Notes·
..........
YKAONKAca-
Military standard for electronic industry of the People's Republic of China General specticatlons of ciphering set.for atrborpeVHF/UHIF radio
1 Scope
1.1 Subject content
SJ20661-1998
This specification specifies the requirements, quality assurance regulations and delivery preparation of military airborne ultra-short wave radio confidentiality machines (hereinafter referred to as confidentiality machines).
1.2 Scope of application
This specification applies to various military airborne ultra-short wave radio digital voice confidentiality machines. 2 Reference documents
GJB150.3-86 Environmental test methods for military equipment High temperature test GJB150.4-86 Environmental test methods for military equipment Low temperature test GJB151.2-86 Electromagnetic emission and sensitivity requirements for military equipment and subsystems Requirements for airborne equipment and subsystems (including corresponding ground auxiliary equipment) (Class A1). GJB152-86 Measurement of electromagnetic emission and sensitivity of military equipment and subsystems GJB179-86 Counting 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 CJB367.3-87 General technical conditions for military communication equipment Reliability evaluation test and acceptance test methods GJB367.5-87 General technical conditions for military communication equipment Packaging, transportation and storage requirements GJB368.5-87 General specification for equipment maintainability Maintainability test and evaluation GJB457-88 General specification for airborne electronic equipment 3 Requirements
3.1 Qualification evaluation
Promulgated by the Ministry of Electronics Industry of the People's Republic of China on March 11, 1998 and implemented on May 1, 1998
SJ 20661 -- 1998
Products submitted in accordance with this specification shall be qualified or approved by finalization. 3.2 Design
The design requirements of the confidentiality machine shall comply with the provisions of Chapter 1 of GB367.1. 3.3 Structure
The structure of the confidentiality machine shall comply with the provisions of Article 1.15 of GB367.1. The form and basic dimensions of its chassis and mounting frame shall be specified by the product specification.
3.4 Color
The outer color of the confidentiality machine is black (matte), and other requirements shall comply with the provisions of Article 1.20 of GB367.1. 3.5 Appearance Quality
The outer surface of the confidentiality machine shall be free of dents, bumps, cracks, deformation, etc.; the coating shall not bubble, crack or fall off; the metal parts shall not have rust and other mechanical damage; the fastening parts shall not be loose. 3.6 Product marking and code
The marking and code of the confidentiality machine shall comply with the provisions of Article 1.21 of CB367.1 and Article 6.32 of GJB457. 3.7 Maintainability
3.7.1 The maintainability of the confidentiality machine shall comply with the provisions of Article 1.6 of GJB367.1 and Article 6.9 of GJB457. 3.7.2 The mean static time (MTTR) of the confidentiality machine shall not exceed 0.5h. 3.8 Interchangeability
The interchangeability of the confidentiality machine shall comply with the requirements of Article 1.7 of GJB367.1 and Article 6.11 of GJB457. 3.9 Detection
3.9.1 Self-detection
The confidentiality machine shall have the capability of intentional self-detection (BTT). The capability of self-detection shall be specified by the product specification. 3.9.2 External detection
The confidentiality machine shall have an external detection interface. The content of external inspection is specified by the product specification. 3.10 Key management
3.10.1 Key injection and replacement
Keys are divided into long and short keys. Long keys are injected and replaced by key programmers or key guns. Short keys are replaced by switch mode or bus control mode.
3.10.2 Key destruction
The encryption machine should have a key destruction device. The key destruction measures can be specified in the product specification according to the requirements of the ordering party. 3.11 Performance characteristics
3.11.1 Working mode (see 4.7.11.1) Half-duplex working mode.
3.11.2 Confidentiality (see 4.7.11.2)
The confidentiality design of the security machine shall meet the following requirements: % confidentiality belongs to the tactical level;
b. One word one password is realized;
c. Encryption and decryption do not spread errors;
d. It has measures to prevent the single transmission of passwords and plain words. 3.11.3 Encoder/decoder characteristics (see 4.7.11.3)2
TTTKAONTKAca-
SJ 20661 - 1998
If the security machine adopts a continuous variable slope delta modulation (CVSD) encoder/decoder with a rate of 16kbit/s, when a 1kHz sinusoidal signal with an amplitude dynamic range of 30dB is input, its output quantization signal-to-noise ratio (S/N) should not be less than 12dB. If other types of codecs are used, the restored voice characteristics of the decoder output shall be specified by the product specifications. 3.11.4 Synchronization (see 4.7.11.4)
3.11.4.1 Synchronization mode (see 4.7.11.4.1) Continuous synchronization mode
3.11.4.2 First synchronization establishment time (now 4.7.11.4.2) The first synchronization establishment time of the security machine shall not exceed 300ms. 3.11.4.3 Synchronization probability (see 4.7.11.4.3) When the bit error rate is 1×10-2, the synchronization probability shall not be less than 99.9%. When the bit error rate is 1×10-1, the synchronization probability shall not be less than 99%. 3.11.5 Relationship between the interface between the security machine and the radio (see 4.7.11.5) The interface between the security machine and the radio shall be selected according to Table 1. The interface level and impedance between the security machine and the radio shall be specified by the product specifications. Table 1 Interface between the security machine and the radio station
Broadband receiving signal
Confidential/Secret working mode conversion control
Receiving end decoded voice
Shielded ground
Speaker
Broadband signal output
Secret mode life-saving voice
Secrecy machine power control
Power supply
Keying line
Receiving voice
Signal ground
Data transmission bus interface
3.11.6 Power supply and power consumption (see 4.7.11.6) Power supply: DC, 27 ± 2.7V.
Power consumption: not more than 9.
3.12 Environmental requirements
3.12.1 Low temperature
3.12.1.1 Low temperature storage temperature
Low temperature storage temperature: -55℃
Radio→Confidentiality machine
Radio confidentiality machine
Signal removal room
Confidentiality machine—→Communication controller
Radio—Confidentiality machine
Communication controller—Confidentiality machine
Confidentiality machine—→Radio
Radio confidentiality machine
Radio—→Confidentiality machine
Radio—+Confidentiality machine
Radio or communication controller—→Confidentiality machine
Radio confidentiality machine
Radio confidentiality machine→Communication controller
Confidentiality machine—Communication controller
When the confidentiality machine is not in operation, it should be able to be exposed to the extreme temperature of -55℃ for a long time. 3
3.12.1.2 Low temperature working temperature
Low temperature working temperature: -45°C.
SI 20661 -- 1998
The confidentiality machine should be able to work continuously under the temperature extreme value of -45°C. 3.12.2 High temperature
3.12.2.1 High temperature storage temperature
High temperature storage temperature: 70°C
When the confidentiality machine is not working, it should be able to be exposed to the temperature extreme value of 70°C for a long time. 3.12.2.2 High temperature working temperature
High temperature working temperature: 55°C
The confidentiality machine should be able to work continuously under the temperature condition of 55°C. 3.12.3 Temperature-height
The confidentiality machine should be able to withstand GB367.2.414 Temperature-Altitude Test” 3.3. The severity and requirements of the test shall be specified in the product specification. 3.12.4 Temperature Shock
The confidentiality machine shall be able to withstand the temperature shock test specified in Chapter 3 of “405 Temperature Shock Test” in GJB367.2. The test requirements shall be specified in the product specification.
3.12.5 Speed
The confidentiality machine shall be able to withstand the acceleration test specified in Chapter 4 of “415 Acceleration Test” in GJB367.2. The severity of the test, etc. The level and requirements of the impact test shall be specified in the product specification. 3.12.6 The security machine shall be able to withstand the basic design test specified in Article 4.2 of "408 Impact Test" in GB367.2. When certain applications require the security machine to undergo a "fall safety test", it shall be specified in the product specification. 3.12.7 The security machine shall be able to withstand the vibration test specified in Article 4.2, 4.3 or 4.4 of "409 Vibration Test" in GB367.2. The severity level and requirements of the test shall be specified in the product specification. 3. 12.8 Mixed heat
Secret machine should be able to withstand the damp heat test specified in Chapter 3 of "411 damp heat test" of GJB367.2 for ground and airborne communication equipment.
3.12.9 Fungus
Secret machine should be able to withstand the severe level of fungus test specified in Chapter 37 of "412 fungus test" of GJB367.2. 3.12.10 Salt spray
Secret machine should be able to withstand the salt spray test under the test conditions specified in Chapter 3 of "413 salt spray test" of GJB367.2. 3.13 Electromagnetic compatibility| |tt||The conducted emission (CE03), conducted sensitivity (CS02, CS06), radiated emission (RE02) and radiated sensitivity (RS03) of the confidentiality machine shall comply with the relevant provisions of Chapters 3, 7, 11, 15 and 19 of GJB151.2. 3.14: Reliability
The mean time between failures MTBF (61) of the confidentiality machine shall not be less than 600h: 4
TTTKAONTKAca-
4 Quality Assurance Provisions
4.1 Inspection Responsibility
SJ 20661 -- 1998
Unless otherwise specified in the contract or order, the contractor shall be responsible for completing all inspections required by this specification. If necessary, the ordering party or the superior appraisal machine has the right to inspect any of the inspection items described in the specification. 4.1.1 Responsibility for Conformity
All products must meet all requirements of Chapters 3 and 5 of this specification. The inspections specified in this specification shall become an integral part of the contractor's entire inspection system or quality program. 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 does it allow the ordering party to accept defective products. 4.2 Inspection classification
The inspections specified in this specification are divided into:
a. Appraisal inspection;
b. Quality consistency inspection.
4.3 Test conditions
Unless otherwise specified, all tests specified in this specification shall be carried out under the following normal test conditions: Temperature: 15 ~ 35℃
Relative humidity: 20%~80%;
Air pressure: Test site atmospheric pressure:
Power supply voltage: DC, 27.5±0.5V.
4.4 Qualification test
Qualification test is generally carried out when the equipment design is finalized and production is finalized. When the main design, process, components and materials of the equipment have major changes that affect the important performance of the equipment and make the original qualification results no longer valid, qualification test should also be carried out.
Qualification test shall be carried out in a laboratory approved by the ordering party or the superior qualification agency. 4.4.1 Number of samples
The number of sample crystals for qualification test shall not be less than 2. 4.4.2 Test items
The qualification test items are shown in Table 2.
Appearance quality
Product logo and code
Maintainability
Interchangeability
Self-test
External test
Key registration and key replacement
Working mode
Confidentiality
Encoder/decoder characteristics
Synchronization mode
Ken synchronization establishment time
Synchronization probability
Relationship between the confidentiality machine and the radio station building
Power supply and power consumption
! Low temperature recommended temperature
Low temperature working temperature
High temperature effective storage temperature
High temperature working temperature
Temperature-altitude
Temperature shock
Acceleration
Electromagnetic compatibility
Reliability
SJ 20661 — 1998
Table 2 Inspection items
Quality consistency inspection
Chapter number
Note: In the table, the symbol “○” indicates a required item, “^” indicates an optional item, and “,” indicates an item not to be done. 4.4.3 Qualification criteria
When all inspection items meet the requirements of Chapter 3 and Chapter 5, it is judged to be qualified for the identification inspection. Test method
Chapter number
14.7.10.2
4.7.11.4.1
4.7.11.4.2
4.7.11.4.3
4.7.12.1.1
4.7.12.1.2
4.7.12.2.1
4.7.12.2.2
4.7.12.10
4.7.12.11
If any inspection item fails to meet the specified requirements, the inspection shall be suspended and the contractor shall analyze the unqualified items, find out the causes of the defects and take corrective measures, and then continue the inspection from that item or related items. If all the inspection items meet the specified requirements after continued inspection, the identification inspection is judged to be qualified; if there is still an item that does not meet the specified requirements after continued inspection, the identification inspection is judged to be unqualified. 4.4.4 Maintenance of identification qualification
SJ 20661 1998
In order to maintain the qualification for signing inspection, the contractor shall submit test data to the competent authority every year. 4.5 Quality record consistency inspection
4.5.1 Inspection grouping
Quality consistency inspection is divided into groups A, B, C and D. 4.5.2 Formation of inspection batch
The formation of inspection batch shall comply with Article 3.6 of GB179. 4.5.3 Group A inspection
4.5.3.1 Inspection items
The inspection items of Group A are shown in Table 2.
4.5.3.2 Sampling Plan
100% of the inspection batches submitted by the contractor shall be subject to Group A inspection. The required batch quality (expressed as the number of defects per 100 units) shall be specified in the product specification or contract. The defect classification shall be specified in the product specification.
4.5.3.3 Qualification Criteria
Based on the inspection results, if the number of defects found is equal to or less than the specified value, the batch is judged to have passed the Group 4 inspection, otherwise, the batch is judged to have failed the Group A inspection.
No fatal defects are allowed in the Group A inspection. Once fatal defects are found, the batch shall be rejected. 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, and then resubmit for inspection. The resubmitted batch shall be separated from the new batch and marked as "resubmitted batch". If the re-inspection is qualified, the batch of Group A inspection is still judged to be qualified; if the re-inspection is unqualified, the batch of Group A inspection is judged to be unqualified.
4.5.3.5 Sample processing
For the batches that have passed the Group A inspection, the contractor shall be responsible for repairing the defective products and meet the requirements of the product specifications before they can be delivered in batches according to the contract or order. 4.5.4 Group B inspection
4.5.4.1 Inspection items
The inspection items of Group B are shown in Table 2.
4.5.4.2 Sampling plan
The sampling inspection of Group B shall be carried out in accordance with the relevant provisions of GJB179. The acceptable quality level (AQL) and the limit quality (LQ) are selected from Table 3.
The defect classification is specified by the product specification.
Defect classification
Major defect
Minor defect
Acceptable quality level (AQL)
1.0 1.5 2.5 4.0
4.0 6.5 10 15
Limiting quality (10) (Pa=10%)
16 25 37 54
54 68 78 110
4.5.4.3 Qualification Criteria
SJ 20661 -—- 1998
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the batch is judged to have passed the Group B inspection, otherwise the batch is judged to have failed the Group B inspection.
4.5.4.4 Re-inspection
For batches that have failed the Group B inspection, the contractor shall analyze the batch of products, find out the causes of the defects and take corrective measures before resubmitting them for inspection. The resubmitted batch shall be separated from the new batch and marked as "resubmitted batch", and stricter inspection shall be adopted.
If the re-inspection is qualified, the batch is still judged to have passed the Group B inspection, if the re-inspection is unqualified, the batch is judged to have failed the Group B inspection.
4.5.4.5 Sample Processing
For batches that have passed the Group B inspection, the contractor shall be responsible for repairing the defective products and after they meet the requirements of the product specifications, they can be delivered in batches according to the contract or order. 4.5.5 Group C Inspection
Group C inspection shall be conducted on samples that have passed the Group A and Group B inspections. 4.5.5.1 Inspection Items
Group C inspection items are as shown in Table 2.
4.5.5.2 Sampling Plan
Unless otherwise specified, Group C inspection shall be conducted by randomly sampling 5% to 10% of the samples that have passed the Group A and Group B inspections. However, when the total number of products in the batch is less than 20 units, the sample shall not be less than 2 units. 4.5.5.3 Qualification Criteria
When conducting Group C inspection, if all inspection items meet the requirements specified in the product specifications, the Group C inspection shall be judged as qualified; if any inspection item does not meet the requirements specified in the product specifications, the Group C inspection shall be judged as unqualified. 4.5.5.4 Re-inspection
If a sample fails the Group C inspection, it may be resubmitted for inspection after finding out the cause and taking corrective measures. During re-inspection, all tests or inspections shall be conducted according to the opinions of the appraisal agency, or only the unqualified items shall be tested or inspected. If the re-inspection is qualified, the Group C inspection shall be judged to be qualified; if the re-inspection is unqualified, it shall be judged to be unqualified. 4.5.5.5 Sample processing
Unless otherwise specified, the contractor shall repair the discovered or potential damage of the samples after the Group C inspection and pass the Group A and Group B inspections before delivery according to the contract or order. 4.5.5.6 Inspection cycle
Unless otherwise specified, the first batch submitted for each production batch shall be subject to Group C inspection. In addition, Group C inspection shall also be conducted whenever the cumulative production days of consecutive batches reach 1a or the time specified by the product specification. When there are major changes in the structure, materials, processes, etc. of the equipment that may affect the performance of the equipment, Group C inspection shall also be conducted. 4.5.6 Group D inspection
Group D inspection shall be conducted on products that have passed the Group A and Group B inspections. 4.5.6.1 Inspection Items
The inspection items of Group D are shown in Table 2.
4.5.6.2 Sampling Plan
The inspection samples of the knife group shall be randomly selected from the products of the Group A and Group B inspection batches, and the number of samples shall be determined by the reliability test 8-
TTTKAONTKAca-
plan.
4.5.6.3 Sample Handling
SI 20661 -- 1998
Unless otherwise specified, the contractor shall be responsible for repairing the samples inspected by Group D. The replacement of parts that have consumed all or most of their design service life and passed the Group A and Group B inspections can be delivered according to the contract or order. 4.5.6.4 Inspection Cycle
The inspection cycle of Group D shall be carried out in accordance with the product specifications or contract. 4.5.7 Failure
If the sample fails to pass the Group C or Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the appraisal agency of the non-conformity. After taking corrective measures, all tests or inspections shall be re-performed, or only the non-conforming items shall be tested or inspected, according to the opinions of the appraisal agency. If the test is still unqualified, the appraisal agency shall be notified of the non-conformity.
4.6 Packaging inspection
Packaging inspection shall be carried out in accordance with the relevant provisions of Chapter 5 and Chapter 6 of CJB367.5. 4.7 Inspection method
4.7.1 General requirements
4.7.1.1 Test environment conditions
Same as Article 4.3.
4.7.1.2 Test instrument
The test instrument shall be within the effective period of measurement, and its accuracy shall be at least one order of magnitude better than the accuracy of the measured parameter. 4.7.2 Design
Inspect and review according to the design documents and drawings. 4.7.3 Structure
Inspect by self-test method or using measuring tools. 4.7.4 Color
Inspect by visual inspection.
4.7.5 Appearance quality
Inspect by visual inspection.
4.7.6 Product logo and code
Inspect by visual inspection.
4.7.7 Maintainability
Maintainability verification and maintenance guarantee assessment shall be carried out in accordance with the relevant provisions of Article 2.7 and Chapter 3 of GJB368.5. 4.7.8 Interchangeability
Extract components, plug-ins, assemblies or spare parts with the same functions and interchange them. The interchangeable parts shall not be adjusted, and their mechanical and electrical characteristics shall meet the requirements of Article 3.7. 4.7.9 Inspection
4.7.9.1 Self-inspection
The self-inspection inspection method shall be specified by the product specification. 4.7.9.2 External inspection
The inspection method of the external inspection interface shall be specified by the product specification. 9
4.7.10 Key management
4.7.10.1 Key injection and replacement
ST 20661 — 1998
Use a key programmer or key gun to verify the injection and replacement of long keys. Verify the replacement of short keys by reviewing the design plan.
4.7.10.2 Key destruction
The method for verifying the destruction of keys shall be specified in the product specification. 4.7.11 Performance characteristic measurement
Measuring instruments: counting frequency meter, special control equipment, audio signal generator, millivoltmeter, comprehensive tester for voice channel characteristics, oscilloscope.
Power supply for measurement: Same as 4.3.
Equipment under test: Confidential machine A, B.
The performance characteristic measurement configuration is shown in Figure 1. Counting type
Frequency meter
Secrecy machine
Signal generator
4.7.11.1 Working mode
Oscilloscope
Control equipment
Voice path characteristics
Comprehensive answer meter
True current voltage regulator
Millivolt meter
Figure 1 Performance characteristic measurement configuration diagram
Secrecy machine
Receiver
Connect the line according to Figure 1. Make the security machines A and B pass through the special control equipment and put them in the normal communication working state, and conduct voice communication inspection.
4.7.11.2 Confidentiality
Examined by the password management department.
4.7.11.3 Encoder/decoder characteristic measurement
Connect the A and R security machines according to Figure 1. The two confidentiality clamps are the same, set to one transmit and one receive. When the confidentiality machine uses the CVSD encoder/decoder, the audio input signal is replaced by a 1kHz sine wave, and the audio input amplitude is adjusted to change within the range of 30dB. Use a comprehensive tester for voice path characteristics to measure the quantization 10
TTKAONKAa- at the output of the low-pass filter at the receiving end of the B (A) machine.3 Qualification Criteria
When all inspection items meet the requirements of the product specifications during the C group inspection, the C group inspection is considered qualified; if any inspection item does not meet the requirements of the product specifications, the C group inspection is considered unqualified. 4.5.5.4 Re-inspection
If the sample fails the C group inspection, it can be resubmitted for inspection after finding out the reasons and taking corrective measures. During the re-inspection, all tests or inspections should be carried out according to the opinions of the appraisal agency, or only the unqualified items should be tested or inspected. If the re-inspection is qualified, the C group inspection is considered qualified; if the re-inspection is unqualified, it is considered unqualified. 4.5.5.5 Sample Processing
Unless otherwise specified, for samples that have been inspected by the C group, the contractor should repair the discovered or potential damage and pass the A and B group inspections before they can be delivered according to the contract or order. 4.5.5.6 Inspection Cycle
Unless otherwise specified, the first batch submitted for each production batch should be subject to the C group inspection. In addition, whenever the cumulative production days of consecutive batches reach 1 year or the time specified by the product specification, Group C inspection should also be carried out. When there are major changes in the structure, materials, processes, etc. of the equipment that may affect the performance of the equipment, Group C inspection should also be carried out. 4.5.6 Group D inspection
Group D inspection should be carried out on products that have passed the Group A and Group B inspections. 4.5.6.1 Inspection items
The Group D inspection items are shown in Table 2.
4.5.6.2 Sampling plan
The knife group inspection samples should be randomly selected from the products that have passed the Group A and Group B inspections. The number of samples is determined by the reliability test 8-
TTTKAONTKAca-
plan.
4.5.6.3 Sample handling
SI 20661 -- 1998
Unless otherwise specified, the contractor shall be responsible for repairing the samples that have passed the Group D inspection. Components that have consumed all or most of their design life can be delivered according to the contract or order after they have passed the Group A and Group B inspections. 4.5.6.4 Inspection cycle
The Group D inspection cycle shall be carried out in accordance with the product specifications or contract provisions. 4.5.7 Unqualified
If the sample fails the Group C or Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the 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 appraisal agency, or only the unqualified items shall be tested or inspected. If the test still fails, the unqualified situation shall be notified to the appraisal agency.
4.6 Packaging inspection
Packaging inspection shall be carried out in accordance with the relevant provisions of Chapter 5 and Chapter 6 of CJB367.5. 4.7 Inspection method
4.7.1 General requirements
4.7.1.1 Test environment conditions
Same as Article 4.3.
4.7.1.2 Test instruments
Test instruments should be within the effective period of measurement, and their accuracy should be at least one order of magnitude better than the accuracy of the measured parameters. 4.7.2 Design
Inspect and review according to design documents and drawings. 4.7.3 Structure
Inspect by self-test method or using measuring tools. 4.7.4 Color
Inspect by visual inspection.
4.7.5 Appearance quality
Inspect by visual inspection.
4.7.6 Product logo and code
Inspect by visual inspection.
4.7.7 Maintainability
Maintainability verification and maintenance guarantee assessment shall be carried out in accordance with the relevant provisions of Article 2.7 and Chapter 3 of GJB368.5. 4.7.8 Interchangeability
Extract components, plug-ins, assemblies or spare parts with the same functions and interchange them. The interchangeable parts shall not be adjusted and their mechanical and electrical characteristics shall meet the requirements of Article 3.7. 4.7.9 Testing
4.7.9.1 Self-test
The self-test test method shall be specified by the product specification. 4.7.9.2 External test
The test method of the external test interface shall be specified by the product specification. 9
4.7.10 Key management
4.7.10.1 Key injection and key replacement
ST 20661 — 1998
The injection and replacement of long keys shall be verified by a key programmer or key gun. The replacement of short keys shall be verified by reviewing the design plan.
4.7.10.2 Key destruction
The test method of key destruction shall be specified by the product specification. 4.7.11 Performance characteristics measurement
Measuring instruments: counting type frequency meter, special control equipment, audio signal generator, millivoltmeter, comprehensive tester for voice circuit characteristics, oscilloscope.
Power supply for measurement: same as in 4.3.
Equipment under test: confidential machine A, B.
Performance characteristics measurement configuration is shown in Figure 1. Counting type
Frequency meter
Confidential machine
Signal generator
4.7.11.1 Working mode
Oscilloscope
Control equipment
Voice circuit characteristics
Comprehensive answer meter
True current voltage regulator
Millivoltmeter
Figure 1 Performance characteristics measurement configuration diagram
Confidential machine
Receiver
Connect the circuit according to Figure 1. Make the security machines A and B pass through the special control equipment and put them in the normal communication working state, and conduct the voice communication check.
4.7.11.2 Confidentiality
Examined by the password management department.
4.7.11.3 Encoder/decoder characteristic measurement
Connect the A and R security machines according to Figure 1. The two security clamps are the same, and one is set to the transmitting and the other is set to the receiving state. When the security machine uses the CVSD encoder/decoder, the input audio 1kHz sine wave replaces the voice input signal, and the audio input amplitude is adjusted to change within the range of 30dB. Use the voice path characteristic comprehensive tester to measure the quantization 10
TTKAONKAa- at the output of the low-pass filter at the receiving end of the B (A) machine.3 Qualification Criteria
When all inspection items meet the requirements of the product specifications during the C group inspection, the C group inspection is considered qualified; if any inspection item does not meet the requirements of the product specifications, the C group inspection is considered unqualified. 4.5.5.4 Re-inspection
If the sample fails the C group inspection, it can be resubmitted for inspection after finding out the reasons and taking corrective measures. During the re-inspection, all tests or inspections should be carried out according to the opinions of the appraisal agency, or only the unqualified items should be tested or inspected. If the re-inspection is qualified, the C group inspection is considered qualified; if the re-inspection is unqualified, it is considered unqualified. 4.5.5.5 Sample Processing
Unless otherwise specified, for samples that have been inspected by the C group, the contractor should repair the discovered or potential damage and pass the A and B group inspections before they can be delivered according to the contract or order. 4.5.5.6 Inspection Cycle
Unless otherwise specified, the first batch submitted for each production batch should be subject to the C group inspection. In addition, whenever the cumulative production days of consecutive batches reach 1 year or the time specified by the product specification, Group C inspection should also be carried out. When there are major changes in the structure, materials, processes, etc. of the equipment that may affect the performance of the equipment, Group C inspection should also be carried out. 4.5.6 Group D inspection
Group D inspection should be carried out on products that have passed the Group A and Group B inspections. 4.5.6.1 Inspection items
The Group D inspection items are shown in Table 2.
4.5.6.2 Sampling plan
The knife group inspection samples should be randomly selected from the products that have passed the Group A and Group B inspections. The number of samples is determined by the reliability test 8-
TTTKAONTKAca-
plan.
4.5.6.3 Sample handling
SI 20661 -- 1998
Unless otherwise specified, the contractor shall be responsible for repairing the samples that have passed the Group D inspection. Components that have consumed all or most of their design life can be delivered according to the contract or order after they have passed the Group A and Group B inspections. 4.5.6.4 Inspection cycle
The Group D inspection cycle shall be carried out in accordance with the product specifications or contract provisions. 4.5.7 Unqualified
If the sample fails the Group C or Group D inspection, the acceptance and delivery of the product shall be stopped. The contractor shall notify the 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 appraisal agency, or only the unqualified items shall be tested or inspected. If the test still fails, the unqualified situation shall be notified to the appraisal agency.
4.6 Packaging inspection
Packaging inspection shall be carried out in accordance with the relevant provisions of Chapter 5 and Chapter 6 of CJB367.5. 4.7 Inspection method
4.7.1 General requirements
4.7.1.1 Test environment conditions
Same as Article 4.3.
4.7.1.2 Test instruments
Test instruments should be within the effective period of measurement, and their accuracy should be at least one order of magnitude better than the accuracy of the measured parameters. 4.7.2 Design
Inspect and review according to design documents and drawings. 4.7.3 Structure
Inspect by self-test method or using measuring tools. 4.7.4 Color
Inspect by visual inspection.
4.7.5 Appearance quality
Inspect by visual inspection.
4.7.6 Product logo and code
Inspect by visual inspection.
4.7.7 Maintainability
Maintainability verification and maintenance guarantee assessment shall be carried out in accordance with the relevant provisions of Article 2.7 and Chapter 3 of GJB368.5. 4.7.8 Interchangeability
Extract components, plug-ins, assemblies or spare parts with the same functions and interchange them. The interchangeable parts shall not be adjusted and their mechanical and electrical characteristics shall meet the requirements of Article 3.7. 4.7.9 Testing
4.7.9.1 Self-test
The self-test test method shall be specified by the product specification. 4.7.9.2 External test
The test method of the external test interface shall be specified by the product specification. 9
4.7.10 Key management
4.7.10.1 Key injection and key replacement
ST 20661 — 1998
The injection and replacement of long keys shall be verified by a key programmer or key gun. The replacement of short keys shall be verified by reviewing the design plan.
4.7.10.2 Key destruction
The test method of key destruction shall be specified by the product specification. 4.7.11 Performance characteristics measurement
Measuring instruments: counting type frequency meter, special control equipment, audio signal generator, millivoltmeter, comprehensive tester for voice circuit characteristics, oscilloscope.
Power supply for measurement: same as in 4.3.
Equipment under test: confidential machine A, B.
Performance characteristics measurement configuration is shown in Figure 1. Counting type
Frequency meter
Confidential machine
Signal generator
4.7.11.1 Working mode
Oscilloscope
Control equipment
Voice circuit characteristics
Comprehensive answer meter
True current voltage regulator
Millivoltmeter
Figure 1 Performance characteristics measurement configuration diagram
Confidential machine
Receiver
Connect the circuit according to Figure 1. Make the security machines A and B pass through the special control equipment and put them in the normal communication working state, and conduct the voice communication check.
4.7.11.2 Confidentiality
Examined by the cryptography department.
4.7.11.3 Encoder/decoder characteristic measurement
Connect the A and R security machines according to Figure 1. The two security clamps are the same, and one is set to the transmitting and the other is set to the receiving state. When the security machine uses the CVSD encoder/decoder, the input audio 1kHz sine wave replaces the voice input signal, and the audio input amplitude is adjusted to change within the range of 30dB. Use the voice path characteristic comprehensive tester to measure the quantization 10
TTKAONKAa- at the output of the low-pass filter at the receiving end of the B (A) machine.3 Structure
Inspect by self-test method or using measuring tools. 4.7.4 Color
Inspect by visual inspection method.
4.7.5 Appearance quality
Inspect by visual inspection method.
4.7.6 Product logo and code
Inspect by visual inspection method.
4.7.7 Maintainability
Maintainability verification and maintenance guarantee assessment shall be carried out in accordance with the relevant provisions of Article 2.7 and Chapter 3 of GJB368.5. 4.7.8 Interchangeability
Extract components, plug-ins, assemblies or spare parts with the same function and interchange them. The interchangeable parts shall not be adjusted, and their mechanical and electrical characteristics shall meet the requirements of Article 3.7. 4.7.9 Inspection
4.7.9.1 Self-inspection
The self-inspection inspection method shall be specified by the product specification. 4.7.9.2 External test
The test method of the external test interface shall be specified by the product specification. 9
4.7.10 Key management
4.7.10.1 Key injection and key replacement
ST 20661 — 1998
Use a key programmer or key gun to check the injection and replacement of long keys. Verify the replacement of short keys by reviewing the design plan.
4.7.10.2 Key destruction
The test method of key destruction shall be specified by the product specification. 4.7.11 Performance characteristic measurement
Measuring instruments: counting frequency meter, special control equipment, audio signal generator, millivoltmeter, voice channel characteristic comprehensive tester, oscilloscope.
Power supply for measurement: same as 4.3.
Equipment under test: Confidential machine A, B.
The performance characteristic measurement configuration is shown in Figure 1. Counting type
Frequency meter
Secrecy machine
Signal generator
4.7.11.1 Working mode
Oscilloscope
Control equipment
Voice path characteristics
Comprehensive answer meter
True current voltage regulator
Millivolt meter
Figure 1 Performance characteristic measurement configuration diagram
Secrecy machine
Receiver
Connect the line according to Figure 1. Make the security machines A and B pass through the special control equipment and put them in the normal communication working state, and conduct voice communication inspection.
4.7.11.2 Confidentiality
Examined by the password management department.
4.7.11.3 Encoder/decoder characteristic measurement
Connect the A and R security machines according to Figure 1. The two confidentiality clamps are the same, set to one transmit and one receive. When the confidentiality machine uses the CVSD encoder/decoder, the audio input signal is replaced by a 1kHz sine wave, and the audio input amplitude is adjusted to change within the range of 30dB. Use a comprehensive tester for voice path characteristics to measure the quantization 10
TTKAONKAa- at the output of the low-pass filter at the receiving end of the B (A) machine.3 Structure
Inspect by self-test method or using measuring tools. 4.7.4 Color
Inspect by visual inspection method.
4.7.5 Appearance quality
Inspect by visual inspection method.
4.7.6 Product logo and code
Inspect by visual inspection method.
4.7.7 Maintainability
Maintainability verification and maintenance guarantee assessment shall be carried out in accordance with the relevant provisions of Article 2.7 and Chapter 3 of GJB368.5. 4.7.8 Interchangeability
Extract components, plug-ins, assemblies or spare parts with the same function and interchange them. The interchangeable parts shall not be adjusted, and their mechanical and electrical characteristics shall meet the requirements of Article 3.7. 4.7.9 Inspection
4.7.9.1 Self-inspection
The self-inspection inspection method shall be specified by the product specification. 4.7.9.2 External test
The test method of the external test interface shall be specified by the product specification. 9
4.7.10 Key management
4.7.10.1 Key injection and key replacement
ST 20661 — 1998
Use a key programmer or key gun to check the injection and replacement of long keys. Verify the replacement of short keys by reviewing the design plan.
4.7.10.2 Key destruction
The test method of key destruction shall be specified by the product specification. 4.7.11 Performance characteristic measurement
Measuring instruments: counting frequency meter, special control equipment, audio signal generator, millivoltmeter, voice channel characteristic comprehensive tester, oscilloscope.
Power supply for measurement: same as 4.3.
Equipment under test: Confidential machine A, B.
The performance characteristic measurement configuration is shown in Figure 1. Counting type
Frequency meter
Secrecy machinewww.bzxz.net
Signal generator
4.7.11.1 Working mode
Oscilloscope
Control equipment
Voice path characteristics
Comprehensive answer meter
True current voltage regulator
Millivolt meter
Figure 1 Performance characteristic measurement configuration diagram
Secrecy machine
Receiver
Connect the line according to Figure 1. Make the security machines A and B pass through the special control equipment and put them in the normal communication working state, and conduct voice communication inspection.
4.7.11.2 Confidentiality
Examined by the password management department.
4.7.11.3 Encoder/decoder characteristic measurement
Connect the A and R security machines according to Figure 1. The two confidentiality clamps are the same, set to one transmit and one receive. When the confidentiality machine uses the CVSD encoder/decoder, the audio input signal is replaced by a 1kHz sine wave, and the audio input amplitude is adjusted to change within the range of 30dB. Use a comprehensive tester for voice path characteristics to measure the quantization 10
TTKAONKAa- at the output of the low-pass filter at the receiving end of the B (A) machine.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.