技术特性

• Provides mapping of up to 28 T1 streams as Asynchronous VT1.5 into an STS-1 SPE or TU-11 tributary unit into an STM-1/VC-3 or TUG-3 from STM-1/VC-4
  
• Supports 28 T1 streams M13 multiplexed into a serial DS3
  
• Supports 21 E1 streams M13 multiplexed into a serial DS3 (compliant with ITU-T G.747)
  
• 28 T1 Streams M13 Multiplexed into a DS3 and DS3 is asynchronously mapped into STS-1
  
• 21 E1 Streams M13 Multiplexed into a DS3 (ITU-T G.747) and DS3 is asynchronously mapped into STS-1
  
• Supports 21 E1 mapped as Asynchronous VT2 into an STS-1 SPE or TU-12 tributary units into STM-1/VC-3 or TUG-3 from a STM-1/VC-4
  
• Supports TU cross-mapping function TU-12/VC-11/T1
  
• Supports mixed mapping of VT-G/VT1.5 and VT-G/VT2
  
• Supports mixed mapping of TUG-2/TU-11 and TUG-2/TU-12
  
• 28 VT1.5/TU-11 or 21 VT-2/TU-12 tributaries can be passed as transparent between SONET/SDH Telecom Bus on the line side and Clock and Data on the system side
  
• Supports Unframed T1/E1 signals
  
• Supports DS1/E1 Performance Monitoring in both Egress and Ingress direction
  
• VC-11/VC-12 Tandem Connection Monitoring support
  
• Complies with the Category I Intrinsic Jitter Requirements for DS1 signals being de-mapped from SONET, per Telcordia GR-253-CORE
  
• Complies with the "Mapping Jitter Generation Specification" for DS1 and E1 signals being de-mapped from SDH, per ITU-T G.783
  
• Complies with the "Combined Jitter Generation Specification" for DS1 and E1 signals being de-mapped from SDH, per ITU-T G.783
  
• Line and Facility Loop-backs
  
• Each of the 28 T1/E1 Channels includes a PRBS Generator and Receiver
  
• Each of the 28 VT-Mapper blocks are capable of generating BIP-2 and REI errors upon software command (for diagnostic purposes)
  
• The Transmit and Receive DS3 Framer blocks support both the M13(M23) and the C-bit Parity Framing formats
  
• Integrated 28 T1/E1/J1 Short-Haul Line Interface Units
  
• IEEE 1149.1 Standard Boundary Scan
  
• Low Power: 1.8V Power Supply for Core Logic; 3.3V Power Supply for I/O
  
• General Purpose Microprocessor Interface
  
• Pb-Free, RoHS Compliant Versions Offered

技术指标

应用领域 APPLICATION

• Channelized and Unchannelized DS3 applications
  
• T1/E1 Terminals
  
• SONET/SDH ADM

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