The 1850 TSS-5 supports graceful migration from TDM 2G services to fast-growing Ethernet- and data-oriented 3G services. With Ethernet back- haul, the 1850 TSS-5 supports TDM traffic by CES. In CES, TDM is transported over Ethernet by static multiprotocol label switching (MPLS) pseudo-wires protected by bidirectional forwarding detection (BFD), a form of label switched path (LSP) protection.
By using the 1850 TSS-5, businesses avoid making a premature SONET/SDH or Ethernet backhaul decision. They can start with SONET/SDH backhaul networks and move to Ethernet
backhaul as packet traffic grows, transitioning from TDM backhaul to Ethernet backhaul on the same platform, where and when it makes sense.
Enterprise Services
The 1850 TSS-5 provides a low-cost solution for offering high-speed access to small and medium- sized enterprises. The 1850 TSS-5 provides businesses and service providers with reliable transport for both voice and data service. Figure 2 shows the 1850 TSS-5 placed in various buildings with diverse multitenant units. Separate users have distinct voice and data requirements, needing a mix of DS1/E1 and Ethernet connections.
Figure 2. Enterprise Access
1850 TSS-5 provides:
•DS1/E1
• 10/100 Mb Ethernet
1665
DMXplore
1665
DMXtend
1850 TSS-5
OC-3/
STM-1
1850 TSS-5
| GigE |
1850 TSS-5 | 1850 TSS-5 |
| 1665 |
| DMXtend |
1665 | OC-3/ |
DMX | STM-1 |
OC-12/
STM-4
| | OC-192/STM-64 |
| 1665 | 1850 TSS-320/100 |
| MetroCore |
| DMX |
| |
8Alcatel-Lucent 1850 TSS-5 Transport Service Switch
