Description:

The OSIRIS solutions are designed to map various types of signals over a fiber ring. The DS-1 mappers map DS-1 signals (1.544 Mbps) onto VT1.5 containers on a SONET fiber ring. They are offered in two versions: the standard DS-1, which is available in four-channel and seven-channel models and the DS-1PM+, which is available in four-channel and eight-channel models. The DS-1PM+ mappers are enhanced versions of the DS-1 mappers, offering increased performance monitoring functions.

Benefits:

• Remote circuit testing and loopback
• Failure detection
• Enhanced performance monitoring with the DS-1PM+ mappers
• 1:N protection switching via the PSCU

Features:

• End-to-end preventative maintenance and service grade guarantee
• Fault isolation
• Capability to act as a demarcation point at the customer premise,
  creating a common provisioning and management system
• Enhanced in-service performance monitoring for anomaly and defect
  detection
• Line- and path-level performance monitoring
• Event detection for text and loopback (in-band and out-of-band signaling)