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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 ENX Platinum models. For
fully loaded racks, a walk-in chamber
is needed.
Para-
graph |
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 |
ESZ,
ESX, or
ENZ, ENX |
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 |
ESL,
ESX or ENL, ENX |
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. |
|
ESL,
ESX or ENL, ENX |
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
reach-in or 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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Related Information
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