Description:

The OSIRIS solutions are designed to map various types of signals over a fiber ring. The EC-1 mappers transport an STS-1 signal (51.84 Mbps) on a SONET signal. The EC-1 Bulk mapper processes the STS-1 signal at the STS-1 level, enabling any type of payload to be transported. The EC-1 virtual tributary (VT) mapper processes up to 28 VT1.5 from 1 STS-1, keeping complete VT1.5 visibility. The EC-1 time slot assignment (TSA) mapper processes up to 28 VT1.5 from 1, 2, or 3 different STS-1s via TSA.

Benefits:

• All mappers feature remote circuit testing and loopback
• The EC-1 Bulk mapper has the capability to carry unchannelized traffic
• The EC-1 VT and EC-1 TSA mappers feature VT path switching
• The EC-1 TSA mapper performs time slot assignment and optimizes 
  bandwidth usage
• Each mapper provides an ideal solution for electrical network
  interconnection

Features:

• All mappers feature performance monitoring on EC-1 line and section
  overheads
• All mappers perform failure detection
• The EC-1 Bulk mapper enables you to drop and insert an STS-1 with
  STS-1 granularity
• The EC-1 VT mapper enables you to drop and insert an STS-1 with 
  VT1.5 granularity
• The EC-1 TSA mapper enables you to drop and insert up to 28 VT1.5s
  from any STS-1