Cisco ONS 15454 DWDM - Figure

15-13
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 15 Shelf Hardware Reference
15.4.2 Y-Cable Protection Module
Figure 15-9 Two-Channel Add Component Connector Mapping and Labeling
15.4.2 Y-Cable Protection Module
The Y-cable protection module is a bidirectional module. It is equipped with two passive star couplers:
one that is used as a splitter and one that is used as a coupler.
Note None of the modules in this equipment release can be used for video on demand (VoD) applications.
The purpose of this module is to provide Y-cable protection on the CLIENT side of transponder (TXP)
cards such as the TXP_MR_10G, XP_MR_10E, or TXP_MR_2.5G (Figure 15-10). There are two
versions of this module, one for multimode applications (CS-MM-Y) and one for single-mode
applications (CS-SM-Y).
Using one Y-cable protection module, you can protect one client signal with two TXP cards, and two
client signals with four TXP cards.
Figure 15-10 Typical Y-Cable Protection Module Configuration
1
7 9 10
2 Channel Add Module 15216-FLB-2-XX.X
MON
15XX.XX
RX
15XX.XX
RX
COM-TX
2% TAP
12
COM-RX
90950
90938
Client
Protecting
Card
TX
RX
Y_Cable
Protection
Module
Line
Line
Client
Working
Card
TX
RX