Carrier Access 1750 user manual Service Alarm Definitions

Configuration

Unstructured DS3 SAM

Network Alarm	Definition
Sequence Errors	This alarm indicates that frames are out of sequence as they arrive at the DS3
	port.
Excessive SNP Errors	SNP Errors are errors that occur in the Sequence Number Parity portion of the
	DS3 frame
Excessive F-bit Errors	The Excessive F-bit Errors alarm is triggered when the DS3 port receives
	F-bit errors at a rate of 1 x 10-4
Excessive Parity Errors	The Excessive Parity Errors alarm will be triggered when the DS3 port
	receives parity errors at a rate of 1 x 10-4
Excessive C-bit Errors	The Excessive C-bit Errors alarm will be triggered when the DS3 port
	receives C-bit errors at a rate of 1 x 10-4
Excessive FEBE Errors	The Excessive FEBE (Far End Block Error) alarm is triggered when the DS3
	port receives FEBEs at a rate of 1 x 10-4
Table 7-6: Service Alarm Definitions
Service Alarm	Definition
LOS	Loss Of Signal indicates that there is no signal being input to the DS3 from the
	service side.
LOF	Loss of Framing indicates that the framing alignment of the signal coming
	into the Broadmore 1700 from the ATM side has been lost.
AIS	This alarm indicates that the DS3 port is receiving an Alarm Indication Signal
	from the attached equipment. AIS is a validly framed DS3 signal consisting
	of a repeated 1010 data pattern.
Idle	An idle alarm means that an idle signal (validly framed DS3 signal with a
	repeated 1100 signal) is being detected on the service side.
RAI	The Remote Alarm Indicator (also known as a Yellow Alarm) is transmitted by
	setting the X bits to zero. In this instance, the service side equipment is
	transmitting the RAI to the DS3 port.
FEAC	Far End Alarm and Control Channel.

7-48 Broadmore 1750 - Release 4.6