Multi-Tech Systems MVP-2410, MVP-2400, MVP-3010 manual

Operation & Maintenance			MultiVOIP User Guide
		E1 Statistics: Field Definitions (cont’d)
	Field	Values	Description
	Name
	Receive		The framing pattern '0000' in 2 consecutive
	Timeslot 16		CAS multiframes were not found or in all time
	Loss of		slot 16 of the previous multiframe all bits were
	MultiFrame		reset.
	Alignment
	Transmit Line		At least 32 consecutive zeroes were
	Open		transmitted.
	Transmit Data		For use by MTS Technical Support
	Underrun		Personnel.
	Transmit Slip		The frequency of the transmit clock is greater
	Negative		than the frequency of the transmit system
			interface working clock. A frame is skipped.
	Bipolar	Integer tally of	Bipolar Violation (or BPV) refers to two
	Violation	violation count	successive pulses of the same polarity on the
			E1 line. On an AMI-encoded line, this
		since last reset.
			represents a line error. On a B8ZS line, this
			may represent the substitution for a string of 8
			zeroes.
	Excessive	Tally since last	Displayed value will increment if consecutive
	Zeroes	reset.	zeroes beyond a set threshold are detected.
			I.e., tally increments if more than 7
			consecutive zeroes in the received data stream
			are detected under B8ZS line coding, or if 15
			consecutive zeroes are detected under AMI
			line coding.
	Transmit Slip	Tally since last	Slip in transmitted data stream. Slips indicate
		reset.	a clocking mismatch (or lack of
			synchronization) between T1/E1 devices.
			When slips occur, data may be lost or
			repeated.
	Receive Slip	Tally since last	Slip in received data stream. Slips indicate a
		reset.	clocking mismatch (or lack of synchronization)
			between T1/E1 devices. When slips occur, data may
			be lost or repeated.

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