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 rate, such as a DS-1 (T1) circuit.
A channel bank may be located in a telephone exchange, or in an enterprise's telephone closet or enclosure where it "breaks out" individual telephone lines from a high-capacity telephone trunk line connected to the central telephone office, or the enterprise's PBX system.
A working example in the finance industry is to provide several automatic ringdown (ARD) lines over a single T-1.
Famous quotes containing the words channel and/or bank:
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—Henry David Thoreau (1817–1862)
“A man’s labour is not only his capital but his life. When it passes it returns never more. To utilise it, to prevent its wasteful squandering, to enable the poor man to bank it up for use hereafter, this surely is one of the most urgent tasks before civilisation.”
—William Booth (1829–1912)