3Com S27x, S26x, S24x installation manual Threshold Value UAS

Configuring Channelized Data

Threshold Value UAS

Range:	1 to 255
Default:	1
Description:	Specifies the number of errors that must occur within a fixed
	15- minute window before an alarm is declared. This is based on
	the threshold value for Unavailable Seconds. The DS1 interface is
	unavailable from the onset of 10 contiguous SESs or any condition
	leading to a failure;
	• once unavailable and if no failure is present, the DS1 interface
	becomes available at the onset of 10 contiguous seconds with
	no SESs
	• once unavailable and if a failure is present, the DS1 interface
	becomes available at the onset of 10 contiguous seconds with
	no SESs if the failure clearing time is less than or equal to 10
	seconds
	• once unavailable and if a failure is present, the DS1 interface
	becomes available at
	–	the onset of 10 contiguous seconds with no SESs if the
		failure clearing time is more than 10 seconds
	–	or the onset period leading to the successful clearing
		condition, whichever occurs later

Channelized Data 5-17