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Cisco ONS 15540 ESPx Hardware Installation Guide
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Chapter 3 Connecting the Cisco ONS 15540 ESPx
Connecting Transponder Modules
To cable the PSM, follow these steps:
Step 1
Use MU cables to connect the west TX/RX ports from the PSM to the west side
equipment appropriate for your configuration.
Step 2
Use MU cables to connect the east TX/RX ports from the PSM to the east side
equipment appropriate for your configuration.
Step 3
Use an MTP cable to connect the 2.5-Gbps line card motherboard containing the
transponder module to the cross-connect panel in the cross-connect drawer.
Step 4
Use an MU cable to connect the mux/demux OUT port from the PSM to pin 5 of
the cross-connect panel.
Step 5
Use an MU cable to connect the mux/demux IN port from the PSM to pin 1 of the
cross-connect panel.
Connecting Transponder Modules
The Cisco ONS 15540 ESPx fiber optic transponder modules use MU connectors.
To install fiber optic cables in the Cisco ONS 15540 ESPx, a fiber cable with the
corresponding connector type must be connected to the transmit and receive ports
on the modules. We recommend that you label the transmit, receive and the
working and protection fibers at each end of the fiber span to avoid confusion with
cables that are similar in appearance. Labels are shipped with the system that you
can use to do this.
The line card motherboards and the mux/demux motherboards on the Cisco ONS
15540 ESPx connect to each other through the cross connect drawers using the
MTP-to-MU breakout cables. The cable has one MTP connector at one end which
is plugged either onto the MTP connector at the base of the line card motherboard
or onto the MTP connectors on the mux/demux modules.
The motherboards can be installed in any of slots 2 to 5 and 8 to 11; however, the
transponder modules in the motherboards, or the channels within the band, must
be in increasing order from top to bottom.