Cisco ONS 15454 DWDM - Figure 11-1 Optical Channel Circuits

CHAPTER
11-1
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
11
Optical Channel Circuits and Virtual Patchcords
Reference
This chapter explains the Cisco ONS 15454 dense wavelength division multiplexing (DWDM) optical
channel (OCH) circuit types and virtual patchcords that can be provisioned on the ONS 15454. Circuit
types include the OCH client connection (OCHCC), the OCH trail, and the OCH network connection
(OCHNC). Virtual patchcords include internal patchcords and provisionable (external) patchcords
(PPCs).
Note Unless otherwise specified, “ONS 15454" refers to both ANSI and ETSI shelf assemblies.
11.1 Optical Channel Circuits
The ONS 15454 DWDM optical circuits provide end-to-end connectivity using three OCH circuit types:
• Optical Channel Network Connections (OCHNC)
• Optical Channel Client Connections (OCHCC)
• Optical Channel Trails (OCH Trails)
A graphical representation of OCH circuits is shown in Figure 11-1.
Figure 11-1 Optical Channel Circuits
R
-
OADM
Transponder
Muxponder
Transponder
Muxponder
R
-
OADM
R
OADM
To client
To client
R
OADM
DWDM
Network
OCH NC
OCH Trail
OCH
CC
OCH
CC
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