Channel bank
![T-1 feed demultiplxed through a Newbridge channel bank to 24 channels with an Amphenol connector.](/Images/godic/202501/04/Newbridge_communications_channel_bank5302.jpg")
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, so that all the channels can be sent simultaneously over a single cable called a trunkline.