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Optical Transport Turn-Up and Test Guide
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Chapter 2 Quick Installation Procedures
Installing Cisco ONS 15540 ESPx Hardware
Cabling Mux/Demux Modules
This section describes the connections between pairs of mux/demux modules and between mux/demux
modules and mux/demux motherboards in the Cisco ONS 15540 ESPx. The assumption is made that the
motherboard and modules are already installed and checked.
Connecting Mux/Demux Module and OSC Ports
Perform the following steps to connect the motherboard and module. Use MU-MU connectors (short
fiber length) to connect OSC ports of the motherboard to OSC In and OSC Out on the module.
Step 1 Connect OSC Tx from the motherboard to OSC In on the module.
Step 2 Connect OSC Rx from the motherboard to OSC Out on the module.
Connecting 4-Channel or 8-Channel Mux/Demux Modules
If you have more than one 4-channel or 8-channel mux/demux module, perform the following steps to
cascade the modules. Use MU-MU connectors (short fiber length) to connect the modules.
Step 1 Connect the Thru Out port of the module with the DWDM Trunk to Trunk In of the next module in slot 0.
Step 2 Connect the Thru Out of the remaining modules to Trunk In of the next module in slot 0.
Step 3 Perform the steps above for Thru In and Trunk Out in the same slot. Repeat the steps above for slot 1.
Step 4 Connect the trunk fiber to the mux/demux module.
Cabling Together Mux/Demux Modules and Line Card Motherboards
Optical components on the Cisco ONS 15540 ESPx can be cabled together in two different ways:
• Direct connections with an MTP cable storage drawer
• With cross connect drawers.