![Nortel Meridian Installation And Administration Manual Download Page 219](http://html.mh-extra.com/html/nortel/meridian/meridian_installation-and-administration-manual_1706219219.webp)
Meridian Digital Telephone IP Adapter Installation and Administration Guide
195
October 2001
Glossary
DB9 connector
A 9-pin connector labeled ADMIN that provides the RS-232 serial port
interface. This serial port connection can be used to configure a Remote Office
9150 unit that is directly connected to a PC.
DB25 connector
The DB25 connector on the RLC Multi-I/O cable–Enhanced is for future use.
DC
See
DHCP
See
dynamic host configuration protocol.
digital linear tape
A high-capacity 1/2-inch streaming tape cartridge format.
digital signal processor
A special type of coprocessor that manipulates analog data, such as sound or
photographs, that has been converted to digital form.
DIMM
See
direct current
DC, the electrical power used by computers, comes from a single source (such
as a battery) that provides a single voltage that stays at a constant level. AC, the
power provided by utility companies, must be converted to DC before it can be
used in computer systems.
directory number
The number that identifies a phoneset on a switch. The directory number (DN)
could be a local extension (local DN), a public network telephone number, or an
automatic call distribution directory number (ACD-DN).
DIP
A type of protective packaging for silicon memory chips that provides a safe and
convenient means of installing and removing the chip.