User`s manual

DigiMux
Glossary 105
Digital A discontinuous signal that has discrete states. Most
digital signals are composed of binary information, i.e.,
1 or 0, that allows processing by microprocessor-based
equipment.
DNS Domain Name System. This system enables you to use a
familiar string of characters as a host name to refer to an IP
(Internet protocol) address.
Dome Protocol A set of formal rules describing how data is transmitted to
and from dome cameras on a network. For example, the
DigiMux unit controls the domes through RS-422
communications protocol.
Dwell The length of time a scheduled action is to remain active.
Dwell Time The amount of time that an image will remain on the
monitor before it is replaced by another image in a
sequence.
E
Event An occurrence that the system can detect or generate. An
event frequently refers to an alarm event.
Export To transfer part or all of your file system to external
storage devices. This term refers to copying image files
from DigiMux's hard disks to external USB devices.
F
FireWire
®
IEEE-1394 (FireWire
®
). A connection for digital video
devices that consists of six wires: two for power, two for
data, and two for synchronization. This connection uses a
special high-speed bus standard that is capable of over 100
Mbits/sec sustained data rate.
Flip To immediately position a dome 180º in the opposite
direction of where it is currently pointed.