Multitech MT56DSU-R Owner's Manual download pdf (Page 58)

MT56DSU-R Owner's Manual

This section defines several of the terms used in this manual. For an

overview of DSU basics, refer to section 1.8 of this manual.

ALBO (Automatic Line Build Out) - part of equalizer circuitry

used to compensate for various gauges and alterations of local

loops.

Anti-Streaming - an option that prevents a streaming (jammed)

DTE from affecting other devices on a multi-point network.

Asynchronous communications - communications between

computer devices at irregular intervals. To do so, the device adds

start and stop bits to each character it sends.

BERT (bit error rate tester) - the type of testing used to verify the

operating parameters of a data communications line.

bps (bits per second) - unit of measure for data transmission.

Central Office (CO) - the telephone company site where switching

equipment is located (as opposed to customer premises).

Channel - the digital path on a cable on which data is transmitted. A

logical way to look at the path data travels when sent between

locations.

Circuit assurance - an optional conditioning of the CTS signal.

Clear To Send (CTS) - an interface signal that indicates whether the

modem or DSU is ready to accept a data transmission from the

DTE.

CO (Central Office) - facility where communications common

carriers terminate customer lines and locate line interconnection

equipment.

Clocking - a synchronous device circuit that sends signals at a

precise frequency corresponding to the bit rate of that device.

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Multitech MT56DSU-R Owner's Manual Page 58