GR-63-CORE for network switching systems (NEBS)
This is the classic Bellcore test, reserved for fully operational telco switching racks. Many component suppliers "pre-qualify" for NEBS to ensure their customers will pass.
For rack-component-level testing, your best bet is our Platinum models. For fully loaded racks, a walk-in chamber is needed.
Paragraph |
Title |
Description |
Benchtop Models |
Reach-in Models |
Other Models |
5.1.1.1 |
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 |
5.1.1.2 |
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 |
5.1.1.3 |
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.