Oadm Node; Figure 15-3 Terminal Node Configuration Example - Cisco ONS 15454 DWDM Installation And Operation Manual

Chapter 15 DWDM Node Reference

15.1.3 OADM Node

Figure 15-3 Terminal Node Configuration Example

15.1.3 OADM Node
An OADM node is a single ONS 15454 node equipped with cards installed on both sides and at least one
AD-xC-xx.x card or one AD-xB-xx.x card and two TCC2 cards. 32MUX-O or 32DMX-O cards cannot
be installed in an OADM node. In an OADM node, channels can be added or dropped independently
from each direction, and then passed through the reflected bands of all OADMs in the DWDM node
(called express path). They can also be passed through one OADM card to another OADM card without
using a TDM ITU line card (called optical pass through) if an external patchcord is installed.
Unlike express path, an optical pass-through channel can be converted later to an add/drop channel in an
altered ring without affecting another channel. OADM amplifier placement and required card placement
is determined by the Cisco MetroPlanner tool or your site plan.
OADM nodes can be amplified or passive. In amplified OADMs, the OPT-PRE and the OPT-BST
amplifiers are installed on the east and west sides of the node. Figure 15-4 shows an example of an
amplified OADM node configuration.
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
15-4
September 2004