Alcatel-Lucent 1850 TSS-5 VLNC50/52/55 circuit pack can be provisioned for signal routing. Depending on the application, SONET/SDH, VT1.5/VC-12/VC-3/VC-4/.VC-4-4c, and STS-n/VC-n signal cross-connections may be established to route traffic in a specific manner. All cross-connections are bidirectional. Thus, each connection goes from HS to LS within the MAIN pack or from HS to HS in the case of pass-through cross-connections.
SONET VT1.5 and STS-n, and SDH VC-n signals may be cross-connected in several ways. For bidirectional drop services, the cross-connection is used to connect a like signal in the MAIN slot to any available timeslot in Gigabit Ethernet (1000 Mb/s), Fast Ethernet (100 Mb/s), DS1/E1, or DS3/E3 interfaces.
In UPSR/SNCP applications, bidirectional pass-through cross-connections are used to pass VT1.5, VC-n, or STS-n signals through the NE on the same timeslot. In 0x1 applications, bidirectional cross-connections can go between any available timeslot to any other available timeslot. In equipment-protected applications (PROT), signals may be connected between any available timeslots in the two line pairs (UPSR/SNCP or 1+1).
Linear/unprotected UPSR/SNCP cross-connections and 2-way hairpin cross-connections are supported.
For more information on cross-connections, refer to Chapter 6, System planning and engineering.
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