DS0A is the
interface most commonly used for
SS7 networks in the US. It is a 56/64kbit/s
channel
Channel, channels, channeling, etc., may refer to:
Geography
* Channel (geography), in physical geography, a landform consisting of the outline (banks) of the path of a narrow body of water.
Australia
* Channel Country, region of outback Austral ...
typically located in a
DS1 or larger facility. The DS0A electrical interface usually only exists inside a
central office environment, and only exists for the sole purpose of connecting into a
channel bank
In telecommunications, a channel bank is a device that performs multiplexing or demultiplexing ("demux") of a group of communications channels, such as analog or digital telephone lines, into one channel of higher bandwidth or higher digital bit r ...
to be
multiplexed onto a higher facility.
Sources
Cisco SS7 Fundamentals(archived website, saved 13th of March 2013)
*Russell, Travis. "Signaling System # 7", Mcgraw-Hill Telecommunications. {{ISBN, 9780071822145
Signaling System 7