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:
“The Xanthus or Scamander is not a mere dry channel and bed of a mountain torrent, but fed by the ever-flowing springs of fame ... and I trust that I may be allowed to associate our muddy but much abused Concord River with the most famous in history.”
—Henry David Thoreau (1817–1862)
“When women can support themselves, have entry to all the trades and professions, with a house of their own over their heads and a bank account, they will own their bodies and be dictators in the social realm.”
—Elizabeth Cady Stanton (1815–1902)