Cisco ONS 15454 DWDM - Figure 1-11 1:2 Splitter and 2:1 Coupler (Y-Cable Protection) Module Block Diagram; Figure 1-12 ONS 15454 Y-Cable Protection Flexlayer Module (Single-Mode)

1-15
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 1 Shelf Assembly Hardware
1.4.2 Single Y-Cable Protection Module
Figure 1-11 1:2 Splitter and 2:1 Coupler (Y-Cable Protection) Module Block Diagram
Figure 1-12 and Figure 1-13 show the physical appearance of the ONS 15454 Y-Cable Protection
FlexLayer Module. This module has two versions, one for single-mode applications and the other for
multimode applications.
Figure 1-12 ONS 15454 Y-Cable Protection FlexLayer Module (Single-Mode)
SPLb
-TX1
SPLb
-TX2
SPLa
-TX1
SPLa
-TX2
CPLa
-RX1
CPLa
-RX2
CPLb
-RX1
CPLb
-RX2
CPLb-TX
SPLb-RX
CPLa-TX
SPLa-RX
90939
Front Panel
CS-SM-Y
90952