Cisco Cisco ONS 15310-MA SONET Multiservice Platform Installation Guide

This document provides a card description, specifications, and an installation procedure for the 
Cisco ONS 15310-MA CTX2500 card. As appropriate use this document in conjunction with the 
Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide, the Cisco ONS 15310-CL and 
Cisco ONS 15310-MA Reference Manual, and the Cisco ONS 15310-CL and Cisco ONS 15310-MA 
Troubleshooting Guide when working with CTX2500 cards.

This document contains the following sections:

The CTX2500 card, for use with the ONS 15310-MA, is a fully nonblocking cross-connect card that 
operates in either a simplex or duplex (redundant) configuration. It performs system initialization, 
provisioning, alarm reporting, maintenance, diagnostics, IP address detection/resolution, SONET DCC 
termination, system fault detection, and cross-connect maintenance and management for the 
ONS 15310-MA. The card also provides the circuitry for the OC-3/OC-12/OC-48 interfaces, and ensures 
that the system maintains timing with SMC stability.

If the system loses power or the CTX2500 card is reset, you must reset the ONS 15310-MA clock unless 
the node has been previously provisioned to use Simple Network Time Protocol (SNTP) to update the 
clock over the LAN.