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Technical specifications
DN0445814 © Nokia Corporation 43 (60)
Issue 2-0 en Nokia Proprietary and Confidential
Electromagnetic compatibility (EMC) of DNT2Mi-fp complies with the
following specifications:
Voltage 90 to 264 V
AC
Frequency 47 to 65 Hz
DC power supply
Voltage 48V (40V to 70V)
Remote power supply
Voltage 50 to 150 V on both pairs as generated through ACL2i
at central site
Start-up voltage Min. 90 V
DC
Table 8. Mean time between failure (MTBF)
DNT2Mi-fp > 75 years
Table 9. Electromagnetic compatibility
EN 55022: 1998 Class B Emission, Information technology equipment
EN 55024: 1988 Immunity, Terminal equipment
EN 300286: 2000 EMC, Telecommunications equipment
Table 10. Safety
Safety IEC 60950-1 and IEC 60950-21 RFT-C
• Protective earthing and Basic insulation
AC Power supply:
• Surge protection: 2.5kV according to ITU-T Rec. K.45
DC Power supply:
• Surge protection: 0.5kV according to EN61000–4–5
Line Interface:
• Surge protection: 1.5kV according to ITU-T Rec. K.45
• 50 Hz common mode test according to ITU-T Rec. K.45
• 600V RMS common mode according to ITU-T Rec. K.45
Table 7. DNT2Mi-fp power supply (Continued)