Technical data

TraverseEdge 2020 Applications and Engineering Guide, Chapter 3: System Applications
Release 5.0.x Turin Networks Page 3-31
3.8 General Ring Configuration Examples and Requirements
The following sections describes several typical configurations of the TE-2020 deployed in various ring
applications. These applications can be applied to BLSR as well as UPSR rings. Various combinations of
the following interfaces are possible at each node:
• Up to 192 DS3s transported in STS-1 channels
• Up to 192 EC-1s transported in STS-1 channels
• Up to 40 protected or 80 unprotected OC-3 interfaces transported in STS-1 and/or STS-3c
channels, can be configured as UPSR, or 1+1
• Up to 40 protected or 80 unprotected OC-12 interfaces transported in STS-1, STS-3c, and/or
STS-12c channels, can be configured as UPSR, or 1+1
• Up to 24 protected or 48 unprotected OC-48 interfaces transported in STS-1, STS-3c, STS-12c,
and/or STS-48c channels, can be configured as UPSR, BLSR, or 1+1
• Up to 40 GbE interfaces transported in STS-1-Xv, STS-3c-Xv, STS-3c, or STS-12c channels,
unprotected operation only
• Up to 672 DS1 interfaces transported in STS-1 channels, with additional bandwidth for 48 DS3
and optical interfaces, can have 1+1 protection
• Up to 192 FastE interfaces (unprotected only) transported in STS-1, or STS-1-2v channels,
with additional bandwidth for 48 DS3, GbE, or optical interfaces.
The selection of UPSR or BLSR in the main shelf is a software only selection. There are no additional
hardware requirements to support either ring protection scheme, or even a mix of the two ring types. The
OTS2 currently supports UPSR only.
3.8.1 Single Shelf OC-192 Ring
The following is a typical single shelf ring configuration with two optical cards used for aggregation and/