Jump to content

D channel

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by 198.152.13.67 (talk) at 08:26, 10 May 2012. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

D channel (delta channel) is a telecommunications term which refers to the ISDN channel in which the control and signalling information is carried.

The bit rate of the D channel of a basic rate interface is 16 kbit/s, whereas it amounts to 64 kbit/s on a primary rate interface.

For DSS1 signalling, the D channel layer 2 protocol is Q.921 also called LAPD and it carries Layer 3 messages according to Q.931 protocol.


See also


Stub icon

This article related to telecommunications is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=D_channel&oldid=491759371"