Telecordia GR-63-CORE for network switching systems (NEBS)
|Paragraph||Title||Description||Benchtop Models||Reach-in Models||Other Models|
|188.8.131.52||Low-Temperature Exposure and Thermal Shock||Hold the equipment at -40°C for 72 hours, then remove to ambient room temperature||Almost every benchtop||Any Platinous||Walk-in|
|184.108.40.206||High-Temperature Exposure and Thermal Shock||Hold the equipment at 70°C for 72 hours, then remove to ambient room temperature||Any benchtop or PH or PV ovens||Any Platinous or Platinum||Walk-in|
|220.127.116.11||High Relative Humidity Exposure||Maintain 40°C and 90-95% RH for 96 hours, with controlled heat-up and cool-down||Any humidity model||Any Platinous||Walk-in|
|5.1.2||Operating Temperature and Relative Humidity||There are 14 steps to the test sequence, cycling from -5 to 50°C, as well as humidity. One step requires holding 5°C/<15%RH.||Any Platinous||Walk-in|
|5.1.3||Operating Altitude||Twelve step cycling test of temperature and humidity. 25°C to 50°C and up to 4,000 meters above sea level.||Altitude or Walk-in||Walk-in|
Because 5.1.2 and 5.1.3 require your equipment to be operating, these become a challenging application for a test chamber due to the heat generated.
The altitude test is new for Issue 2 of this specification.
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