Products planned for Central Office installation will require NEBS approval. We have the ability to design your product to meet NEBS standards and can provide the means to see it through a test program.

What is NEBS?

NEBS stands for Network Equipment Building System and is a physical requirement and testing standard written by Bellcore which the telephone companies require their equipment suppliers to comply with. The requirements were created to insure a product installed in a Central Office was safe, robust, and extremely reliable. The standard consists mainly of the following two documents;

• GR-63-CORE Network Equipment-Building System (NEBS) Requirements: Physical Protection
• GR-1089-CORE Electromagnetic Compatibility and Electrical Safety-Generic Criteria for Network Telecommunications Equipment

Note: These documents refer to other Bellcore specifications that products must comply with as well.

GR-63-CORE Network Equipment-Building System (NEBS) Requirements: Physical Protection

This specification deals with the physical and environmental requirements of a Central Office product. The document details the requirements and test procedures for items such as:

• Space Planning
• Floor and Heat Loading
• Operating and Storage Temperature and Humidity
• Earthquake and Vibration
• Fire Resistance
• Transportation and Installation
• Airborne Contamination
• Acoustic Noise

GR-1089-CORE Electromagnetic Compatibility and Electrical Safety-Generic Criteria for Network Telecommunications Equipment

This specification deals with the electrical safety, emissions, and immunity requirements. The document details the requirements and test procedures for items such as:

• Electrical Safety
• Electromagnetic Interference
  • Radiated and Conducted Emissions
  • Radiated and Conducted Immunity
• ESD Immunity
• Lightening Protection
• DC Potential Difference
• Bonding and Groundin