PEB1760

Framer
` Multi-Rate SONET/SDH framer with STS/AU and VT/TU pointer processing capabilities
` Processes a single STS-12/STM-4 or a quad STS-3/STM-1
` Supports 1+1 line protection
` Payload Pointer interpretation and generation
` Fully SONET/SDH compliant
` Provides full performance monitoring for high- and low-order paths
` Provides high-order and low-order virtual concatenation according to ITU-T G.707
` Supports up to 64 virtual concatenated groups (VCG)
` Flexible concatenation of up to 12 high-order paths and up to 64 low-order paths into any virtual concatenation group
` Supports up to 336 VT1.5 or 252 TU12 low-order paths
` Provides following mapping schemes:
- AU-4 / VC-4 / TUG-3
- AU-3 / VC-3 or STS-1 / STS-SPE
` External buffer for up to 48 ms differential delay compensation
` Different VCG group types are defined:
- N * VC-12, N * VC-11, N * VT1.5 SPE, N * VT2 SPE (N 64)
- N * VC-3, N * STS1 SPE (N 12)
- N * VC-4, N * STS3c SPE (N 4)
` Provides flexible mapping of any VCG into any VC-4/STS-3
` Fully integrated support for the Link Capacity Adjustment Scheme (LCAS) protocol according to ITU-T G. 7042
` Provides hitless increase and decrease of multiple members VCG
SPI-3 Interface
` 64 logical channels each of them running in 32-bit mode
` Packet mode with variable block length

The MetroMapper™ 622 PEB1760 is a mapper/framer capable of mapping datacom traffic into SONET/SDH transport payloads. On the line side, the MetroMapper™ 622 supports protected STS-12/STM-4 and STS-3/STM-1 PEB1760 interfaces. On the client side, up to sixteen Ethernet interfaces (10/100 Mbps), two 1 GE and one OIF SPI-3 interface with up to 64 logical channels are provided. The Ethernet traffic or the packets coming from the SPI-3 interface are encapsulated by either the GFP-F, LAPS (X.85/.86) or PPP mapping scheme. Low-order and high-order virtual concatenation (VCAT) with Link Capacity Adjustment Schemes PEB1760(LCAS) for up to 64 virtual concatenated channels is supported. MetroMapper™ 622 provides Ethernet IEEE802.1q VLAN operations and enables Ethernet over MPLS.