NEBS™ Testing Facilities and Expertise
Telcordia Technologies developed the NEBS™ criteria and our technical staff is active in national and international standards making for many environmental compatibility criteria areas. When you work with Telcordia Technologies, you gain access to the telecommunications industry's leading experts on network integrity and environmental compatibility. Telcordia Technologies' engineering staff has worked extensively with network service providers in standards development and we know their expectations for product integrity.
- Fire Resistance
- Earthquake & Vibration
- Thermal Robustness
- Electromagnetic Compatibility
- Airborne Contaminants
Fire Resistance
Telcordia Technologies' specialized fire test facility provides capabilities to perform small scale (component level) and large scale (product level) fire tests on telecommunications equipment and cabling. The results of these tests are used to analyze the fire ignition and fire spread hazards associated with the product being investigated. The facility is used to analyze new or existing equipment to the fire resistance requirements contained in Telcordia Technologies document, GR-63-CORE. It is also used for fire scenario modeling to assist in both root cause analyses of actual fire events and analyses of fire protection methodologies. The facility utilizes modern fire testing technology, oxygen consumption calorimetry, to gain a better understanding of potential fire hazard. This enables Telcordia Technologies to use an ever-widening array of national and international standards to analyze the fire hazard data on many types of products. Extensive pollution control equipment also provides testing services which are environmentally friendly.
Earthquake & Vibration
Telcordia Technologies' Earthquake, Vibration and Mechanical testing facility performs static and dynamic tests of equipment, frameworks, cable racks, battery stands and earthquake bracing techniques. The results are used to determine the ability of electronic equipment to operate during and after being subjected to earthquake and vibratory stresses.
Static tests are performed by applying external loads to equipment structures. This enables computation of strength and stiffness which are then used to predict the conformance of equipment structures to earthquake survivability requirements. The earthquake and vibration requirements are contained in Telcordia Technologies document, GR-63-CORE.
Dynamic tests are performed to verify your equipment's ability to resist vibratory loads from train and vehicular traffic, demolition activity, rotating machines, and shocks produced by earthquakes. Products are tested to determine if they can withstand physical forces and remain operational. GR-63-CORE contains the basic requirements which are supplemented by other Telcordia Technologies Practices and Special Reports. Installed equipment configurations can be modeled in the laboratory simulating conditions in network facilities. Full-scale equipment assemblies using actual hardware and products are subjected to anticipated stress levels in the laboratory before deployment.
Thermal Robustness
Telcordia Technologies' Thermal Test Facility provides capabilities to test the equipment's ability to operate in the environments set forth in Telcordia Technologies document, GR-63-CORE. The temperatures to 90%. The results of these tests may be used to help determine if the equipment can operate, uninterrupted, in a network environment.
The facilities are also used to create environments that the equipment may experience during transportation or storage. These tests are performed on packaged equipment over a period of one month. Conformance is based on operability tests that are performed before and after exposure to the environment. The facility comprises large walk-in environmental chambers and a number of smaller chambers.
Electromagnetic Compatibility
Telcordia Technologies' Electromagnetic Compatibility (EMC) test facilities are used to help determine the causes, effects and control of Electromagnetic Interference (EMI) and Electrostatic Discharge (ESD) problems; the protection of networks and equipment against damage from Lightning, Power surges and ac Power Influences; the Bonding and Grounding of equipment, buildings and network facilities; and the development of Electrical Safety criteria.
The High Voltage (HV) Test Facility, the EMI Anechoic Test Facility, and EMI Open Area Test Site (OATS) offer a range of tests to help assure equipment reliability in the complex electromagnetic environments of telecommunication networks. The HV Facility is able to simulate ac and dc power faults, lightning-induced surges on communications and power circuits and direct lightning strikes to cables. There are also ESD and dielectric strength test capabilities. The EMI Test Facility is used to measure the immunity of equipment to radio frequency interference and for preliminary tests of radio frequency emissions coming from that equipment.
Tests are performed in accordance with GR-1089-CORE, as well as national or international standards such as FCC part 15, FCC part 68, IEC 801-3, and CISPR Pub. 22, and are accredited by A2LA, VCCI, and BSMI.
Airborne Contaminants
The Mixed Flowing Gas Test Facility and the Hygroscopic Dust Test Facility provide capabilities to test the equipment's ability to operate in the environment described in Telcordia Technologies Document, GR-63-CORE. The equipment is exposed to anticipated concentrations of selected contaminants found in densely populated, urban, outdoor environment or in environmentally controlled network facilities, as it applies.
The Mixed Flowing Gas Test is performed by exposing the device under test to a mixture of typical atmospheric pollutants gases under strictly controlled conditions. After exposure the product is functionally tested. The Hygroscopic Dust Test is performed by exposing the device under test to a hygroscopic contaminant. Once coated, the product is tested for functionality through various moisture cycles.