Roadm Node; Figure 15-8 Roadm Node With Bst-Pre, Opt-Bst, And 32Dmx Cards Installed - Cisco ONS 15454 DWDM Installation And Operation Manual

Chapter 15 DWDM Node Reference

15.1.4 ROADM Node

15.1.4 ROADM Node
A reconfigurable OADM (ROADM) node allows you to add and drop wavelengths without changing the
physical fiber connections. ROADM nodes are equipped with two 32WSS cards. 32DMX or 32DMX-O
demultiplexers are typically installed, but are not required. Transponders (TXPs) and muxponders
(MXPs) can be installed in Slots 6 and 12 and, if amplification is not used, in any open slot. Figure 15-4
shows an example of an amplified ROADM node configuration.

Figure 15-8 ROADM Node with BST-PRE, OPT-BST, and 32DMX Cards Installed

If the ROADM node receives a tilted optical signal, you can replace the single-slot 32DMX card with
the double-slot 32DMX-O card to equalize the signal at the optical channel layer instead of the transport
section layer. However, if 32DMX-O cards are installed, Slots 6 and 12 cannot be used for TXP or MXP
cards. Figure 15-6 shows an example of an ROADM with 32DMX-O cards installed.
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
15-8
September 2004