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• CCITT Rec. K.22 (11/1988) – OVERVOLTAGE RESISTIBILITY OF EQUIPMENT CONNECTED TO AN ISDN T/S BUS
• OVERVOLTAGE RESISTIBILITY OF EQUIPMENT CONNECTED TO AN ISDN T/S BUS
• 1 General
• 2 Scope
• 3 Overvoltage and overcurrent conditions
• 4 Equipment boundary
• 5 Test conditions
• 6 Test compliance
• 7 Surge tests
  • 7.1 Test circuits
  • 7.2 Tests
• 8 Tests for electrostatic discharges
• 9 Tests related to mains-powered equipment
• References