Y-Cables; Mux/Demux Motherboards And Modules - Cisco ONS 15540 ESP Hardware Installation Manual

Cisco ONS 15540 Components

Y-Cables

Mux/Demux Motherboards and Modules

Cisco ONS 15540 ESP Hardware Installation Guide
1-14
Figure 1-11 ITU Direct Insertion Module
Y-cables are 2:1 combiner cables used for splitter protection on the transponder
modules. Using a y-cable enables full protection on the Cisco ONS 15540 and
offers protection against both facility failures and transponder card failures.
For detailed information about the hardware rules, refer to the
ESP Planning and Design
"Using Y-Cable" section on page
The optical mux/demux motherboards occupy slots 0 and 1 of the
Cisco ONS 15540 chassis. The chassis uses one optical mux/demux motherboard
for unprotected operation or two per system for protected operation. Each
mux/demux motherboard can accept up to four mux/demux modules. The
modular mux/demux motherboards are available with or without OSC (optical
supervisory channel) and can be populated according to user needs. There are
three types of mux/demux modules available:
• 4-channel
• 8-channel
Guide. To attach y-cables to your system, see the
2-37.
Chapter 1 Product Overview
Cisco ONS 15540
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