SpectralWave U-Node (EXTWB+MAIN) NEC J

SpectralWave U-Node (EXTWB+MAIN)

The SpectralWave U-Node WBM (Wide Band Manager) is a Multi-service Platform supporting STM-1/STM-4/STM-16/STM-64 optical transport. The U-Node WBM provides TDM service interfaces such as 2M, 34M, 45M, 140M, and data service interfaces with Gigabit and 10/100Base Ethernet.

Compact and High Density Design The U-Node WBM accommodates 2M and Ethernet through STM-16/64 on one shelf. The WBM Shelf has 12 universal interface slots. Ethernet, 2/34/45M, STM-N universal slots offers flexible network configuration. „ Various Network Topology The STM-N ports in the universal interface slots can be flexibly assigned to 1+1 MSP, 2/4-Fiber MS-SPRing and SNCP. This ability enables economical and flexible Dual Node Interconnection and Multiple Rings.

Flexible Bandwidth using GFP and VCAT For IP packet transport, the U-Node WBM supports to establish transparent paths between Ethernet. For efficient and reliable Ethernet transport over SDH networks, Generic Framing Procedure (GFP) and VC-n-Xv Virtual Concatenation (VCAT) are adopted. The GFP adaptation encapsulates Ethernet MAC frames for subsequent transport over existing SDH networks. The VCAT enables the GFP adaptation to establish flexible bandwidth path.

Link Capacity Adjustment Scheme The Link Capacity Adjustment Scheme (LCAS) provides a control scheme to hitless increase or decrease the bandwidth of a VCAT Group link to meet the bandwidth needs of the application. In addition, the LCAS automatically decrease the bandwidth if a VCAT member experiences a failure in the network, and increase the bandwidth when the network failure is repaired.

Resilient Packet Ring The U-Node WBM offers efficient and reliable Ethernet bandwidth delivery and bandwidth management in optical networks. The Resilient Packet Ring (RPR) technology is an emerging standard (IEEE 802.17) that enables Ethernet transport over existing SDH infrastructures while continuing to leverage the SDH networks for legacy TDM services. The U-Node WBM RPR function combines low cost and simplicity of packet-based, connectionless networking with the reliability, managed bandwidth, and scalability of optical networks.

Integrated O-AMP The U-Node WBM enables Ultra Long-Haul optical transmission up to 44dB using integrated optical amplifiers.

Integrated Management The INC-100MS offers total management of the NEC’s optical transport network composed of the SpectralWave U-Node BBM, WBM, UN5000, the SpectralWave V-Node, V-Node S, C-Node, the SpectralWave DWDM systems and other SMS series SDH products.

)