The TCC+ card incorporates system timing source selection and a highly stable, stratum 3, internal timing reference. Nonvolatile database storage for communication, provisioning, and system control is provided on the TCC+ card, allowing complete removal of system power with full database recovery and survivability.The TCC+ has two built-in interface ports for accessing the system: an RJ-45 connector and an RS-232 connector. The RJ-45 craft interface browser LAN connection allows users to access the system using a standard Web browser. While using the browser interface, local and remote operations, administration, maintenance, and provisioning (OAM&P) functions may be performed. In addition, a VT100 emulation window may be opened via the browser, allowing users to enter TL1 commands. If a browser is not available, users can access the system using the nine-pin, RS-232 port. The RS-232 port supports VT100 emulation, such that TL1 commands may be entered directly without the use of a browser.