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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
Installing Line Card Motherboards and Transponder Modules
You can install up to eight hot-swappable line card motherboards in slots 2 to 5 and 8 to 11 of the
Cisco ONS 15540 ESPx chassis.
Each line card motherboard holds up to four transponder modules that have a single protocol-transparent
and bit-rate transparent external interface to the client side network and an internal interface that
connects over the system's backplane to the mux/demux modules. The transponder modules are
hot-pluggable, allowing in-service upgrades and replacement.
Transponders are available in single-mode and multimode. Line card motherboards are available with or
without splitter protection.
Installing Line Card Motherboards
Perform the following procedure to install the line card motherboard:
Step 1 Remove the transponder side dust covers from the motherboard, and clean the optical connectors. See
the “Cleaning Optical Connectors” section on page 2-28.
Step 2 Insert the motherboard carefully into the chassis slot while guiding the upper and lower edges of the
motherboard in the tracks until its connectors come into contact with the backplane.
Table 2-7 Mux/Demux Motherboard LEDs
LED Status Description
Status Blinking green Motherboard has a good system clock from the primary
processor and is out of the reset state.
Solid green Software initialization is successful.
Orange System clock is not present. Board is unavailable.
Off Board failure
Tx Solid green OSC is present and the optical laser output is enabled.
Off OSC is not present and the optical laser output is disabled.
Rx Solid green OSC is present and the receiver is enabled.
Off OSC is not present and the receiver is disabled.