Sidactor Protection Thyristor Products Page 34 SIDACtor Protection Thyristor Products

SIDACtor Protection Thyristors 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/17 Table 3.2: ESD Immunity Requirements for Normal Operation Mode and Installation & Maintenance Mode Test Level Air discharge Contact discharge Repetitions 2 4 kV 10* 4 15 kV 10* 4 8kV 10* The EUT shall be tested using the methods of IEC 61000- 4-4 (EFT), clauses 6, 7, & 8 (see Table 3.3). The capacitively coupling clamp specified in clause 6.3 of IEC 61000-4- 4 is the preferred EFT test method. IF Bit Error Rate (BER) measuring equipment is used to verify the EUT performance, then this BER measuring equipment must be able to withstand the EFT burst application. * For a total of 40 times for air discharge or a total of 20 times for contact discharges Table 3.3: EFT Immunity Requirements by port type Section 4 Lightning and AC Power Fault Port Types Voltage Total Number of 5 kHz repetition frequency events 1 & 2 0.25 kV 5* 3& 4 0.5 kV 5* AC & DC ports 0.5 kV 5* AC & DC ports on customer premises 1 kV 5* The lightning surge and ac power fault test conditions shall be applied to telecommunications ports, antenna ports, ac power ports, dc power ports, and coaxial cable ports. Table 3.4 below provides the description of Test conditions "A" and "B" for both 2-wire and 4-wire interfaces. Intra- building tests apply to ports that are not directly connected to OSP (outside plant). These are designated as Type 2 and Type 4 ports. Type 1, 3, and 5 ports are directly connected to the OSP , therefore the inter-building tests apply. These three port types are subjected to short-circuit tests with 1 st level criteria for compliance. These short-circuit tests are applied for 30 minutes between: 1. tip to ring 2. tip to ground with ring open 3. ring to ground with tip open 4. tip and ring to ground simultaneously GR-1089 defines a 1 st level and 2 nd level criteria for the EUT (equipment under test). 1 st Level Criteria: The EUT shall not be damaged and shall continue to function properly without human intervention or power cycling after the tests 2 nd Criteria: The EUT may sustain damage but it shall not become a fire or fragmentation hazard nor an electrical safety hazard * For a duration of 1 minute. Table 3.4: Tests Conditions Test Generator connections 2-wire interfaces 4-wire interfaces A 1. tip to generator, ring to ground 1. tip to generator, ring, tip1, ring1 to ground 2. ring to generator, tip to ground 2. ring to generator, tip, tip1, ring1 to ground 3. Not applicable 3. tip1 to generator, tip, ring, ring1 to ground 4. Not applicable 4. ring1 to generator, tip, ring, tip1 to ground 5. tip and ring to generator simultaneously 5. tip and ring to generator simultaneously, tip1 and ring1 to ground 6. Not applicable 6. tip1 and ring1 to generator simultaneously, tip and ring to ground B Tip and ring to generator simultaneously Tip, ring, tip1, and ring1 to generator simultaneously Section 2 System-Level Electrostatic Discharge (ESD) and Electrical Fast Transient (EFT) Circuit packs are tested for ESD immunity at the system level only (see Table 3.2). Therefore, ESD events are applied to faceplates, ejector tabs, etc. points and surfaces that are accessible during normal operation of the equipment and under installation and maintenance conditions. GR- 78-CORE Generic Requirements for the Physical Design and Manufacture of Telecommunications Products and Equipment contains ESD immunity criteria for stand-alone circuit cards. The EUT shall be tested using the methods of IEC 61000-4- 2 (ESD), clauses 7 and 8, with the preferred method being the contact discharge method as specified in clause 7. The EUT shall not be damaged and shall continue to operate without negatively affecting service nor requiring the need for manual intervention. Regulatory Requirements (continued)

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