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List of terms

TDT

See traffic descriptor type (TDT) (page 135).

Telnet

A terminal access protocol for accessing remote devices over an IP-based network. The protocol provides support for various types of terminals and is typically found in IP- or UNIX-based environments.

To establish a Telnet connection, you need both a Telnet client and a Telnet server. The Telnet client resides on the local device and connects to the Telnet server on the remote device. Nortel Multiservice Switch nodes act as both a Telnet server (for incoming Telnet connections) and a Telnet client (for outgoing Telnet connections).

termination panel.

A panel used for cable distribution.

TFTP

See trivial file transfer protocol (TFTP) (page 137).

time-division multiple access

A technique originated in satellite communications to interweave multiple conversations into one transponder so as to appear to get simultaneous conversations. TDMA is a variation on TASI (time assignment speech interpolation). TDMA is now used in cellular and other wireless communications.

time-division multiplexing (TDM)

A method of transmitting digital signals from multiple sources in series on the same line.

Time Management System (TMS)

Nortel Multiservice Switch system responsible for maintaining

the calendar time on the network

the processor time during rebooting of the FP or CP

the module time (maintaining synchronization between, for example, an FP and a CP)

time-of-day accounting (TODA)

Time-of-day accounting allows for accounting records to be generated up to 24 times for each day. TODA entries must be a minimum of one hour apart and a maximum of 12 hours apart. The DCS-managed table holding 24 entries manages this accounting feature. When TODA is enabled the system is in TODA mode. A TODA changeover occurs whenever the actual time of day changes from one interval to another. See timer-mode accounting (page 134).

Nortel Multiservice Switch 7400/15000/20000

Terminology

NN10600-005 7.2S1 Standard

PCR7.2 and up March 2006

Copyright © 2006, Nortel

Nortel Confidential

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Panasonic 15000 manual Tdt, Tftp