channel bank


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channel bank

[′chan·əl ‚baŋk]
(electronics)
Part of a carrier-multiplex terminal that performs the first step of modulation of the transmitting voice frequencies into a higher-frequency band, and the final step in the demodulation of the received higher-frequency band into the received voice frequencies.

channel bank

A multiplexor that merges several low-speed voice or data lines into one high-speed digital line and vice versa. Channel banks use TDM (time division multiplexing) to combine the different signals into one by interleaving the bits.

Starting in the 1960s, channel banks converted 24 analog voice lines into digital and multiplexed them onto one T1 line. Towards the late 1980s, they became more sophisticated and accepted plug-in modules that took in a variety of digital signals and multiplexed them onto the T1. See TDM.
References in periodicals archive ?
The Newbridge 3624 MainStreet Intelligent Channel Bank products are installed at the customer premises, allowing the subscriber to receive DSO signals or nx64kbit/s signals, including videoconferencing capability.
The digital channel banks will benefit both defense and civilian federal agencies by linking their network requirements with FTS2000, the government's advanced, cost-effective telecommunications network.
It continuously suppliers the channel bank with conditioned power.
The technology behind XEL's improved channel bank upgrades enables the company's telecommunication service provider customers (including all seven RBOCs, GTE and TELMEX) to upgrade up to five channel banks for the price of a single new one, thus broadening the range of offerings to their customers at minimal incremental investment.
The 6248 VQL Channel Bank with a TDC can carry 48 simultaneous channels of full duplex modem traffic at 9,600 b/s just the same as 48 C-5 conditioned voice grade circuits.
The Series T3000 T1 Channel Bank Systems are being announced concurrently with HT Communication's Series T4000 T1 Multiplexer Systems.
The BA&T Business Unit supplies telecommunications service providers with a diverse line of copper and fiber optic equipment, including: broadband multiplexers, extended-reach DSL systems, intelligent channel banks, T1 mini-repeaters, and span termination systems.
Midcom's transformers are used globally in analog/digital telephone systems, modems, circuit management, networking, multiplexing, D4 channel banks, signaling, automatic call distribution, public data transmission (TV, FAX, MUX), electronic mail, bulletin board services, mobile communications, security systems and a wide variety of amplifiers and recorders for the sound system market.
This 2-span feature enables signaling translation between E1 and T1 equipment and allows inexpensive T1 channel banks to connect with E1 circuits.