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Cisco ONS 15454 SDH Installation and Operations Guide, R3.3
May 2002
Chapter 2 Set up PC and Log into CTC
How CTC Works
2.1 How CTC Works
CTC is a Java application downloaded from the ONS 15454 SDH Timing Communications and Control
(TCC-I) card to your computer when you connect to an ONS 15454 SDH. Launched from a web browser,
such as Netscape Navigator or Microsoft® Internet Explorer, CTC allows you to perform ONS 15454
SDH provisioning and administrative functions.
Every time you connect to an ONS 15454 SDH:
• A CTC launcher applet downloads from the TCC-I to your browser.
• The launcher verifies that your computer has a CTC version matching the version on the ONS 15454
SDH TCC-I.
• If the computer does not have CTC, or if the installed version is older than the TCC-I version, the
launcher downloads the CTC program files from the TCC-I.
• The launcher then starts CTC as a separate application. Each ONS 15454 SDH can run up to four
network-level CTC sessions (login node and its DCC-connected nodes) and one node-level session
(login node only) at one time.
Note Performance may vary, depending upon the volume of activity in each session.
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