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:
“There may sometimes be ungenerous attempts to keep a young man down; and they will succeed too, if he allows his mind to be diverted from its true channel to brood over the attempted injury. Cast about, and see if this feeling has not injured every person you have ever known to fall into it.”
—Abraham Lincoln (1809–1865)
“It was like passing a boundary to dive
Into the sun-filled water, brightly leafed
And limbed and lighted out from bank to bank.
That’s how the stars shine during the day.”
—Wallace Stevens (1879–1955)