NonStop S-Series Hardware Installation and FastPath Guide (G06.26+)

Glossary

HP NonStop S-Series Hardware Installation and FastPath Guide—529876-001

Glossary-23

data terminal equipment (DTE)

instance data). Additional data segments can be dynamically created. See also flat

segment and selectable segment.

data terminal equipment (DTE). Equipment that constitutes the data source or data sink

and provides for the communication control function protocol. It includes any piece of

equipment at which a communication path begins or ends.

data transparent. Describes software that examines all eight bits of every data byte and

that uses no bit in a data byte for its own purposes. Internationalized applications must

be data transparent.

dB. See decibel (dB).

dBm. Decibels as referenced to a milliwatt. A unit of measure that establishes 0 dBm equal

to 1 milliwatt. A negative value represents a decrease in power, and a positive value

represents an increase in power. See also decibel (dB).

DC. See direct current (DC).

DCE. See data communications equipment (DCE).

DCF. See dynamic configuration file (DCF).

DCT. See destination control table (DCT).

DC power cable. In HP NonStop™ S-series system enclosures with power shelves, a cable

that delivers DC power from the power shelf to a processor multifunction (PMF)

customer-replaceable unit (CRU) or I/O multifunction 2 (IOMF 2) CRU in that

enclosure.

DDR. Double data rate.

Debug With Arbitrary Record Format (DWARF). A standardized debugging data format.

HP debugging tools such as Native Inspect read DWARF-2 for debugging information

in Executable and Linkable Format (ELF).

decibel (dB). A unit of measure used to express a relative difference in power. A negative

value represents a decrease in power, and a positive value represents an increase in

power.

dedicated service LAN. An Ethernet local area network (LAN) for use by only the OSM and

TSM applications. This LAN connects system consoles with the Ethernet ports on the

processor multifunction (PMF) customer-replaceable units (CRUs) in group 01 of an

HP NonStop™ S-series server. A dedicated LAN supports NonStop S-series servers

and system consoles but does not support any other types of servers or workstations.