Cisco Prisma IP Optical Switch Card Data Sheet

 

 
 
 
High Capacity, Reliable TDM Aggregation 
Metropolitan Area Network (MAN) service providers today face the challenge of providing affordable and scalable 
packet data services while still offering a range of requisite TDM voice and private line services. The Prisma IP

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family of metro optical switches is designed to meet this need. The OC3/STM1 line card is a flexible solution 
providing support for high-density TDM access aggregation, grooming, and transport applications. 
 
Key Features and Benefits 

•  High capacity, 4 x OC3/STM1 line card 

•  Full VT1.5/TU12 cross connect and grooming capability 

•  Complete Stratum timing support per GR-1244 

•  Carrier class availability with 1+1 redundancy and hot swap capability 

•  Standards based SONET/SDH transport allows for timing transparency of tributary circuits 

•  Compatible with M-Series and C-Series Prisma IP chassis 
 
Bridges Metro Access to Metro Core TDM Applications 
The TDM-U OC3/STM1 card supports seamless transport of high-speed optical interfaces over a packet-based 
network, while maintaining stringent toll-quality parameters for delay and jitter. The card enables carriers to 
aggregate multiple lower speed TDM channels (T1/E1, DS3) from Metro access nodes onto higher speed 
OC3/STM1 circuits in the SONET/SDH Metro core. A high capacity cross connect fabric allows flexible grooming 
of VT1.5/TU12 channels for optimal usage of transport bandwidth. 
 

 

 
Carrier Class Reliability, Availability and Performance 
The TDM-U OC3/STM1 line card supports standards-based SONET/SDH 1+1 protection for guaranteed service 
uptime. RPT ensures TDM bandwidth availability and ring protection with sub 50-millisecond restoration for 
conformance with end-to-end service level agreements (SLAs). The OC3/STM1 card offers additional 
troubleshooting features including loop-back provisioning and transparently supports standard telephony testing 
applications such as BER testers. 
 
Management and Provisioning Simplicity 
The Prisma IP Element Management System (EMS) provides flexible point and click provisioning and bandwidth 
management of OC3/STM1 circuits and lower order tributaries. Only provisioned tributaries within an OC3/STM1 
pipe consume bandwidth on the Prisma IP RPT ring, enabling ring traffic to maintain maximum efficiency. 

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