Test Background
digital communication equipment comprehensive test can determine the adaptability of airborne digital communication equipment to the cyclic combined effects of low temperature, low pressure, high temperature and high humidity that may actually be encountered during non-working conditions during use.
Zhongke Testing Reliability Experiment Center has the reliability performance of various digital communication equipment and provides professional comprehensive testing services for digital communication equipment.
Scope of tests
1. Divided according to business type: telegraph, telephone, video conference, fax, data communication, etc.
2. According to the transmission medium, it is divided into: wireless communication and wired communication
3. According to signal type, it is divided into: analog communication and digital communication
4. According to the signal multiplexing method, it is divided into: frequency division multiplexing, time division multiplexing and code division multiplexing
5. According to whether the communicator is moving, it is divided into: fixed communication and mobile communication
Test method
1. Test conditions
Low temperature and low pressure: temperature -55℃;
Height 15 250 m (11.6 kPa);
High temperature and high humidity: temperature 60℃; relative humidity 95%.
Number of cycles: no less than 4 times.
2. A temperature-humidity-height comprehensive test chamber (room) should be used for testing.
Test standard:
GB/T 13543-1992 Environmental test method for digital communication equipment
