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COM port
community name
COMSPHERE
configuration
configuration option
CPU fail
CRC
CRC6
CSA
CSU
Ctrl branch
CTS
Cust1
Cust2
D4
daisy chaining
data port
database
DB15 connector
DB25 connector
DCE
DCLB
default
DevFail
DevHS branch
3166-A2-GB20-20
Communications port. A computer's serial communications port used to transmit to and
receive data from a modem. The modem connects directly to this port.
An identification used by an SNMP manager to grant an SNMP server access rights to a
MIB.
A proprietary product family name and a registered trademark of Paradyne.
The arrangement of a system or network as defined by the characteristics of its functional
units.
Device software that sets specific operating parameters for the device. Sometimes
referred to as straps.
Central Processing Unit failure. A Self-Test Health message indicating a failure in the
device's central processing unit.
Cyclic Redundancy Check. A mathematical method of confirming the integrity of received
digital data.
CRC using six check bits.
Canadian Standards Association.
Channel Service Unit. A device that connects service user equipment such as a DSU to
the local digital telephone loop, protects the line from damage, and regenerates the signal.
Control branch of the DSU/CSU menu tree.
Clear To Send. A signal indicating that the device is ready for the DTE to transmit data.
Usually occurs in response to Request To Send (RTS).
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.
The transmission standard that specifies 12 frames as a superframe that is used for frame
synchronization and to locate signaling bits.
Connecting the COM port of one device to the AUX port of another device to provide
SNMP connectivity.
The electrical interface between the device and the synchronous data terminal equipment.
An organized compilation of computerized data.
A 15-position connector used on cables or devices.
A 25-position connector used on cables or devices.
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.
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 factory-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 service personnel.
Device Health and Status branch of the DSU/CSU menu tree.
March 1999
Glossary
GL-3
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