AT&T 585-300-903 Port Maint, Major Alarm, Manager, Memory, Categories, Message Center, MI Toggle

Glossary GL-13

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Maintenance	The RS-232C (H00) connector on the rear of the cabinet that connects the LMT (over
Port (MAINT)	cables) or the RMT (over a modem) to AUDIX.
Maintenance	The process of closing all filesystems, leaving them unmounted and inaccessible
Shutdown	(normally used before a system power down). This may be done with the MI toggle
	switch or shutdown form.
Major Alarm	An alarm detected by AUDIX software that affects at least one fourth of the AUDIX
	ports in service. Often a major alarm indicates that no AUDIX service is available.
Manager	A software module responsible for the operation of one part or function of the system.
Memory	A device which can store logic states such that data can be accessed and retrieved.
	Memory may be temporary (such as system RAM) or permanent (such as disk).
Message	Groups of messages in subscribers’ mailboxes. Categories include new, unopened,
Categories	and old for the incoming mailbox, and delivered, accessed, undelivered, not
	deliverable, and file cabinet for the outgoing mailbox.
Message Center	An AP call-answering feature that allows an agent to enter a message for a busy or
	unanswered extension. Also called Message Center Service (MCS).
Message Line	The third line from the bottom of a terminal screen where help information and error
	messages are displayed.
Message-	An LED on a voice terminal (telephone) that alerts subscribers to new messages.
Waiting Lamp	Also called Automatic Message-Waiting (AMW) Lamp.
MI Toggle	A switch on the MI (TN511) circuit pack used to shut down system software by
Switch	moving it off-center (left or right), or reinitialize a system when returned to center
	position.
Microcom	This provides on-line compressing data for increased throughput, provides error
Networking	detection, correction, and retransmission, and provides data rate matching with the
Protocol	opposite endpoint.
Minor Alarm	An alarm detected by maintenance software that affects less than one fourth of the
	AUDIX ports in service, but has exceeded error thresholds or may impact service.
Mirroring	See File Redundancy.
Mode	An operating state in which the system can perform certain tasks. AUDIX modes
	include control mode, normal mode, administrative or maintenance shutdown mode,
	and initialization.
Modem	A modulator/demodulator device for transmitting analog (continuous) signals.
Modem Pool	A group of modems set up to accept incoming data calls from a remote device. The
	switch’s modem-pooling feature inserts modems into the link automatically. The
	transmission rate could range from 1200 to 9600 bps depending on facilities.
Modular	A data device that converts RS-232C or RS-449 protocol signals to Digital
Processor Data	Communications Protocol (DCP) used by the System 75/85 switch. MPDMs may
Module	connect AUDIX to a switch DCIU or SCI link, or connect terminals to a switch port
(MPDM)	board.