CHAPTER
17-1
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
August 2005
17
Node Reference
This chapter explains the ONS 15454 dense wavelength division multiplexing (DWDM) node types that
are available for the ONS 15454. The DWDM node type is determined by the type of amplifier and filter
cards that are installed in an ONS 15454. The chapter also explains the DWDM automatic power control,
ROADM power equalization, span loss verification, and automatic node setup functions.
Note Unless otherwise specified, “ONS 15454” refers to both ANSI and ETSI shelf assemblies.
Chapter topics include:
• 17.1 DWDM Node Configurations, page 17-1
• 17.2 DWDM and TDM Hybrid Node Types, page 17-14
• 17.3 Automatic Node Setup, page 17-29
17.1 DWDM Node Configurations
The ONS 15454 supports the following DWDM node configurations: hub, terminal, OADM,
reconfigurable OADM, anti-ASE, line amplifier, and OSC regeneration line.
Note The Cisco MetroPlanner tool creates a plan for amplifier placement and proper node equipment.
17.1.1 Hub Node
A hub node is a single ONS 15454 node equipped with two TCC2/TCC2P (Timing Control Card) cards
and one of the following combinations:
• Two 32MUX-O (32-Channel Multiplexer) and two 32DMX-O (32-Channel Demultiplexer) or
32DMX cards
• Two 32WSS (32-Channel Wavelength Selective Switch) and two 32DMX or 32DMX-O cards
Note The 32WSS and 32DMX are normally installed in reconfigurable OADM (ROADM) nodes, but
they can be installed in hub and terminal nodes. If the cards are installed in a hub node, the
32WSS express (EXP RX and EXP TX) ports are not cabled.
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