Multi-Tech Systems MVP-410ST/810ST, MVP-130/130FXS, MVP-2410/3010 manual 438

Operation and Maintenance			MultiVOIP User Guide
		T1 Statistics: Field Definitions (cont’d)
	Field	Values	Description
	Name
	Yellow	Tally since last	The alarm signal sent by a remote T1/E1
	Alarm	reset.	device to indicate that it sees no receive
			signal or cannot synchronize on the
			receive signal.
	Frame		[To be supplied.]
	Search
	Restart Flag
	Loss of	Tally since last	In D4 or ESF mode, displayed value will
	MultiFrame	reset.	increment if multiframe alignment has
	Alignment		been lost or if loss of frame alignment has
			been detected.
	Transmit	Tally since last	Slip in transmitted data stream. Slips
	Slip	reset.	indicate a clocking mismatch (or lack of
			synchronization) between T1/E1 devices.
			When slips occur, data may be lost or
			repeated.
	Pulse		The pulse density of the received data
	Density		stream is below the requirement defined
	Violation		by ANSI T1.403 or more than 15
			consecutive zeros are detected.
	Line		The line loopback activation signal
	Loopback		has been detected in the received bit
	Activation		stream.
	Signal
	Transmit		At least 32 consecutive zeros were
	Line Open		transmitted.
	Transmit		For use by MTS Technical Support
	Data		Personnel.
	Underrun
	Transmit		The frequency of the transmit clock is
	Slip		greater than the frequency of the
	Negative		transmit system interface working
			clock. A frame is skipped.

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