Paradyne 3172 Operator's Manual page 158

CRC6
CSA
CSU
Ctrl branch
CTS
Cust1
Cust2
DACS
daisy chaining
database
data port
DB15 connector
DB25 connector
DCE
DCLB
default
DevFail
DevHS branch
device
digital signal
diskette
DLB
DL branch
download
downstream device
drop/insert
DSR
3170-A2-GB20-10
CRC using six check bits.
Canadian Standards Association.
Channel Service Unit. Protects the E1 line from damage and regenerates the E1
signal.
Control branch of the E1 DSU/CSU menu tree.
Clear-to-Send. V.24 circuit 106.
Customer 1 configuration area. The first of two sets of customer-defined
configuration options.
Customer 2 configuration area. The second of two sets of customer-defined
configuration options.
Digital Access and Cross-connect System. A device that allows DS0 channels to be
individually rerouted and reconfigured.
Connecting the COM port of one E1 DSU/CSU to the AUX port of another E1
DSU/CSU to provide SNMP connectivity.
An organized compilation of computerized data.
The electrical interface between the E1 DSU/CSU and the synchronous data
terminal equipment.
A 15-position connector used on cables or devices.
A 25-position connector used on cables or devices.
Data Circuit-terminating Equipment or Data Communications Equipment. A device
which provides signal conversion for communication between the DTE and the
network.
Data Channel Loopback. Loops the data received from the network interface, for all
DS0 channels allocated to the selected port, back to the network.
A preset value that is assumed to be correct unless changed by the user.
Device Failure. A message that indicates that an internal failure has been detected
by the operating firmware. An 8-digit code appears for use by AT&T Paradyne
service personnel.
Device Health and Status branch of the E1 DSU/CSU menu tree.
A mechanical, electrical, or electronic unit with a special purpose.
A signal composed of discrete elements (zeros and ones) instead of a great
multitude of analog elements.
A thin, flexible magnetic disk enclose in a protective jacket.
DTE Loopback. Loops the received signal on the DTE Drop/Insert port back to the
DTE without change.
Download branch of the E1 DSU/CSU menu tree.
A process that transfers device firmware from a locally-attached PC to a device, or
allows the duplication of firmware from a local device to a remote device.
A device that is connected farther from the host computer.
An interconnection point for terminals, multiplexers, and transmission facilities.
Individual channels may be inserted into the aggregate stream or dropped out to
accommodate specific applications.
Data Set Ready. V.24 circuit 107.
March 1996
Glossary
Glossary-3