Paradyne 7612 SNMP DSU - Manual (Page 118)

GL-1 7612-A2-GB20-10 November 1997
Glossary
A software program housed within a device to provide SNMP functionality. Each SNMP
agent stores management information and responds to the manager’s request.
A single bit stream that combines two or more bit streams.
American Standard Code for Information Interchange. A 7-bit code that establishes
compatibility between data services. ASCII is the standard for data transmission over
telephone lines.
A data transmission that is synchronized by a transmission start bit at the beginning of
a character (five to eight bits) and one or more stop bits at the end.
ASCII Terminal Interface. This feature allows a device to be controlled from an
asynchronous terminal or through a Telnet session.
An operational mode in which the DSU forces automatic setting of the DDS line rate/speed
(56 kbps or 64 kbps) as soon as a valid DDS network signal is detected.
Bipolar Violation. A modified bipolar signaling method in which a control code is inserted.
Circuit Card Assembly. A printed circuit board to which separate components are attached.
Consultative Committee on International Telegraphy and Telephony. See ITU.
Carrier Detect. A signal indicating that energy exists on the transmission circuit.
Associated with Pin 8 on an EIA-232 interface.
An independent data path.
Control Mode Idle. A control signal sent over the DDS line to indicate that no data is being
sent.
Communications port. A computer’s serial communications port used to transmit to and
receive data.
Device software that sets specific operating parameters for the DSU.
Customer Premises Equipment. Terminating equipment supplied by either the customer or
some other supplier that is connected to the telecommunications network (e.g., DSUs,
terminals, phones, routers, modems).
An alarm condition in which the DDS receive and transmit pairs are crossed.
Channel Service Unit. The function of the DSU that protects the equipment beyond it from
damage due to disturbances on the DDS network, and regenerates the DDS signal to
meet DDS specifications.
Clear to Send. An EIA-lead standard for V.24 circuit CT 106; an output signal
(DCE-to-DTE).
Data Communications Equipment. The equipment that provides the functions required to
establish, maintain, and end a connection. It also provides the signal conversion required
for communication between the DTE and the network.
Digital Data Service. Provides digital communication circuits.
Data Mode Idle. Refers to a sequence of ones transmitted or received on the DDS
network.
agent
aggregate
ASCII
asynchronous
ATI
autobaud mode
BPV
CCA
CCITT
CD
channel
CMI
COM port
configuration option
CPE
crossed pair
CSU
CTS
DCE
DDS
DMI