Technical data

Release 5.0.x Turin Networks Page 3-1
This chapter describes different network applications related to deployment of the TE-2020 system. Refer
to the following sections:
3.1 Unprotected
3.2 1+1 Terminal
3.3 TE-2020 Regenerator or Transponder
3.4 UPSR (Unidirectional Path-Switched Rings)
3.5 UPSR versus Linear ADM
3.6 BLSR vs UPSR
3.7 BLSR (Bi-directional Line Switched Rings)
3.8 General Ring Configuration Examples and Requirements
3.9 DS3 Transmux and VT Grooming
3.10 Gigabit Ethernet Applications
3.11 Point-to-Point 8-Channel Protected DWDM Link
3.12 Point-to-Point 16-Channel Protected DWDM Link
3.13 Transparent Overhead
The TE-2020 system currently supports these types of network applications:
• Unprotected
• Terminal (point to point)
• UPSR (Unidirectional Path Switched Ring)
• BLSR (2-Fiber Bi-Directional Path Switched Ring)
• Linear ADM (OC-48/12/3)
• Regenerator
The TE-2020 can be used in the following environments:
• Interoffice transport, including CO (Central Office)-to-CO interconnections for short and long
distance applications
• Intra-office using short reach optical and electrical interfaces to connect individual channels to
collocated SONET nodes
In this section of the document, there will be several references to the shelf and PLM layout and inter con-
nectivity. The PLMs within the shelves in these drawings are identified by a two digit identifier. The facil-
ity identifiers in the TE-2020 use the following sequence for TL-1 command structure: Shelf #, Row #,
PLM #, and Facility # (ex., S1-R1-P2-F1). For illustration purposes, this document will only use the row
and slot identifiers to indicate a position of the PLM within a shelf. Refer to the Figure 3-1 through Figure
3-3 for a visual aid.