
COMSPHERE 3800 Series Modems ± Model 3830
Customer 1 | A |
| customized configuration options for a specific |
| application. |
Customer 2 | A |
| customized configuration options for a specific |
| application. |
data carrier | A continuous frequency signal that can be |
| modulated by another signal that contains |
| information to be transmitted. |
data compression | The elimination of empty fields, redundancies, and |
| gaps in order to reduce storage capacity needs and |
| the amount of data to be transmitted. Anything |
| that is eliminated is restored after the data is |
| received. |
Data mode | One of two general modem operating modes. |
| When in Data mode, the modem transmits and |
| receives data instead of accepting commands. |
| A |
| which enables communications between two |
| devices. |
dBm | A decibel referenced to one milliwatt. This unit |
| measures relative signal power. |
DCE | The equipment (Data Communications Equipment |
| or Data Circuit Terminating Equipment) that |
| provides the functions required to establish, |
| maintain, and end a connection. This equipment |
| also provides the signal conversion required for |
| communication between the DTE and the |
| telephone line. A modem is a DCE. |
demodulation | The process of recovering data from a modulated |
| carrier wave. |
dial command modifiers | A modifier used in the dial string that instructs the |
| modem how to process a dialed telephone number. |
August 1998 |