Paradyne COMSPHERE
3610 User Manual page 97

cluster controller A device that controls communications processing for multiple terminals.
CMI Control Mode Idle. A control signal sent over the DDS line to indicate that the other end has RTS off and
no data to send.
COMSPHERE A Paradyne product family and a registered trademark.
configuration option Device software that sets specific operating parameters for the device. Sometimes referred to as straps.
connector module An interface that is shipped with a modular DSU with TDM or MCMP and installed onto the rear of the
COMSPHERE 3000 Series Carrier. The module contains six EIA-232 connectors, one for each port. The
module also has a 26-pin high-density D-type connector located at the top to the module for V.35
operation on Port 1 or an aggregate data path.
control A device that is, for diagnostic purposes, at the logical head of a hierarchical network. It is the unit from
which tests and commands are issued to other units on the same circuit. There is only one control per link.
core A function of the circuit card that provides data transmission capability. With 3500 and 3600 Series
DSUs, there are two cores: one for the DSU and one for the DBM. The data can be transmitted through
either (also see active core).
CPE Customer Provided Equipment. Terminal equipment supplied by either the customer or some other
supplier, which is connected to the telecommunications network.
crossed pairs When the DDS receive and transmit pairs are crossed, a facility alarm is generated.
CSA Canadian Standards Association.
CTS Clear to Send. A signal indicating that the device is ready for the DTE to transmit data.
Data mode One of two general operating modes; the other is Command mode. When in Data mode, the modem
considers any input from the computer to be data and transmits it across the telephone line to the remote
modem.
dBm A decibel referenced to one milliwatt. This unit measures relative signal power.
DBM The optional Dial Backup Module for the 3600 Series DSU. This module provides an alternate data path
in case of failure of the digital connection. Four types of DBMs are available: V.32 14.4 kbps analog
DBM and 2-wire Switched 56 DBM, 4-wire Switched 56 DBM, and ISDN digital DBMs.
DBM-D A carrier-mounted dial backup unit that provides automatic dial backup and service restoration of failed
digital circuits using 2-wire access over 56 kbps switched digital services. The unit functions as a DBM;
does not function as a DSU.
DBM-I A carrier-mounted dial backup unit that provides automatic dial backup and service restoration of failed
digital circuits using an ISDN U-interface with two digital channels. The unit functions as a DBM; does
not function as a DSU.
DBM-S A carrier-mounted dial backup unit that provides automatic dial backup and service restoration of failed
digital circuits using 4-wire access over 56 kbps switched digital services. The unit functions as a DBM;
does not function as a DSU.
DBM-V A carrier-mounted V.32 dial backup unit that provides automatic dial backup and service restoration of
failed digital circuits over the PSTN. The unit functions as a DBM; does not function as a DSU.
DBM-X A carrier-mounted dial backup unit that provides automatic dial backup and service restoration of failed
digital circuits. Primary core is enabled; does not function as a DSU.
3610-A2-GB46-60 December 1996
Glossary
Glossary-3