BERT: Bit Error Rate Test. A test that compares a received pattern with a known transmitted pattern to determine the quality.

Bit: A binary digit, with the value of –0 or –1.

boot: Start a device.

Bps: Bits per second. The speed at which bits are transmitted across a data connection.

bridge: A device that links local or remote area networks together, forwarding packets based on a MAC address (compare with router).

broadband: Communication channels operating at transmission rates in excess of 64 Kbps.

broadcast: The simultaneous transmission to two or more communication devices.

BT: Burst Tolerance. The limit parameter of the Generic Cell Rate Algorithm (GCRA).

buffer: A temporary storage used to compensate for a difference in the rate of flow of data.

bus: An assembly of conductors that carries signals to and from devices along its path and serves as a common connection for a group of related devices.

busy: A device’s operational state, when the device is occupied with processing a call.

Byte: Eight bits arranged in sequence

channel: A bi-directional communications pathway between a host server and a client.

CHAP: Challenge-Handshake Authentication Protocol. A PPP protocol to ensure authentication of the connection between two devices.

circuit: A logical connection between two devices.

CO: Central Office, the local telephone exchange, also called PSTN.

COM port: A computer’s serial communications port.

CPE: Customer Premises Equipment. Equipment used by the end-user.

cross talk: Undesired coupling of a signal from one circuit, or channel, to another.

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