Ua Active interface Module

The dual UA Active Interface Module supports both Master and Slave (relative to the UA link) configurations. There are two modes of operation:

  • Mode SIM: Active Link Simulation (RX, TX, RX, TX)
  • Mode MON: Active Link Monitoring (RX/TX, RX/TX)

The interface module can process eight independent timeslots with configurable bandwidth (default 64 Kbit/s). This corresponds to 4 bi-directional timeslots on a physical interface in both mode SIM and mode MON. The module provides:

  • Point-to-point
  • Two-wires "ping-pong" configurations

Feature Summary

  • WAL2 coding/decoding differential stage
  • Full S/W configuration of the line interface (Mode SIM, Mode MON)
  • On-board power feeding (no external devices needed)
  • Advanced "Future Connector" interface to B-channel switch boards
  • Clock recovery (SLAVE), system clock (MASTER) synchronization schemes
  • Non-disturbing line interface through active monitoring
  • On-board CODEC for dual channel voice monitoring
  • CE compliant advanced design using latest manufacturing techniques

Functionality

The UA Active Interface Module is a six layer double-sided PCB using auto-assembly SMD technology according to ISO 9001. The UA physical interface is isolated from the processor sub-system and uses independent grounds to block interference.

Additional Design Features

  • 32 bit embedded processor operating at 35 MIPs
  • 8 MB of 32 bit wide on board DRAM
  • I/O mapped buffered ISA bus transfer using hardware semaphores
  • Self-test diagnostics
  • Run-time software image downloaded from Host
  • "Virtual Circuit" design 10.000 gates downloaded from Host
  • Software and hardware updates via Internet
  • "Virtual Circuit" allows customization on request