Pelco CM6800E-48X8 manual Glossary, Term Definition, Ascii

GLOSSARY

Term	Definition
Access	The CM6800E allows you to restrict system control by (1) limiting the monitors or cameras a keyboard
	can access, or (2) limiting the cameras that can be viewed on a monitor.
Alarm display format	The CM6800E Matrix Switcher provides four formats for displaying alarmed cameras on system
	monitors: Block Build, Chronological Pair, Reverse Chronological Pair, and Salvo Group.
Alarm group	To display on a monitor, an alarm must be assigned to one or more alarm groups. The CM6800E-48X8
	Matrix Switcher provides eight alarm groups (A through H). The CM6800-32X6 Matrix Switcher
	provides six alarm groups (A through F). Refer to Alarm Groups and Alarm Group Display Options.
Alarm priority	A priority alarm appears on system monitors before a non-priority alarm. Refer to the Priority
	description under Internal and External Alarms.
ASCII	The binary, 7-bit, 128-character set implemented as the standard in communications.
Auxiliary	Output relays can be used to control external devices based on matrix switcher activities. External
	devices can include VCRs, alarm devices, and triggers for audio circuits.
Baud rate	In video, the greater the speed, the larger amount of information passed. In digital systems, this
	capacity is given in bits per second, or baud rates.
Bit	An abbreviation for “binary digit” – the smallest unit of information a computer can use. A bit is either
	a 1 or a 0 (a high or low voltage state).
Byte	An abbreviation for “binary term” – bytes are strings of bits, operated upon as a unit. A byte is equal to
	eight bits (256 possibilities) and is large enough to hold one character (like an “A” or the number “1”.)
Camera auxiliary	Some cameras contain an auxiliary output relay, which can be used to operate a device connected to
	the relay.
Coaxitron	This is Pelco’s “up the coax” control technology. Control signals are sent back up the coaxial cable that
	the video signal travels down on.
COM port	This is a communication port input on the rear panel of the matrix switcher.
Cross-point video matrix switcher	A matrix switcher that can select any video input onto any video output at any time.
Daisy-chain	This is a way of providing multiple connections in a series, from one source. A daisy-chain
	configuration connects multiple, linked devices from one output. When connecting PTZ cameras to a
	matrix switcher, for example, one set of cables connects the matrix switcher to each receiver, and
	then each receiver is connected to the next receiver.
Dwell	This is the amount of time something happens in the system, such as the amount of time a camera
	view displays on a monitor, or an auxiliary is on.
Event timer	The matrix switcher can automatically initiate macros or sequences based on time and date.
Extended Coaxitron	This is Pelco’s Coaxitron control technology that uses 32 bits to send a command.
Frame scan	A three-second camera scan (pan) followed by a three-second pause.
Latching operation	The auxiliary device remains on until a command is given (by a system operator or system automation)
	to turn it off.
Logical camera number	A user-selectable, variable number, which is associated with an actual physical camera input on the
	rear panel of the matrix switcher.

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