Nokia EKSOS BRI UK0 Line Card (T35111.22)¶

This is the line interface card for 16 digital ISDN BRI Uk0 (4B3T) subscriber lines within the Nokia_EKSOS system.

PCB photos¶

Connectors¶

Main circuits¶

Line interface for each BRI / Uk0¶

• 4x Quad IEC consisting of two chips:
  • PEF24901H DFE-T V1.2
    • Quad ISDN 4B3T Echocanceller Digital Front End
    • Data Sheet: PEF24901.pdf
  • PEB24902H AFE V2.1
    • Quad ISDN Echocancellation Circuit Analoge Front End
    • Data Sheet: PEB24902.pdf
• 16x PEB2026T-S IHPC V1.1
  • ISDN High Voltage Power Controller
  • Data Sheet: PEB2026.pdf

Core Logic¶

• 1x NEC UPD97313GD
• 2x Sharp LH28F160S3HT-S4 Flash
• 1x Samsung K4F151612D-TC60 SDRAM
• 1x Motorola MC68MH360A125VL QUICC32 CPU/Controller