ADTRAN 6000 Series E1X STATUS/CONFIGURATION/LOOPBACK E1X Interface Alarms, Ais, Crc, Lcv, Los

TRACER 6000 Series Integrated System Manual Section 5 User Interface Guide

>E1X STATUS/CONFIGURATION/LOOPBACK > E1X INTERFACE ALARMS

Displays any active alarms on the E1 link (reported from both the local and remote TRACER 64x0 units). These alarms include AIS, CRC, LCV, LOS, OOF, and RMT. Table 1 briefly describes these alarms. See Section 8, Troubleshooting Guide, on page 125 for more information on these alarms.

	Table 1. E1 Interface Alarms
AIS	(Alarm Indication Signal) Activates when an incoming remote alarm is received from a
	connected E1 device. An AIS signal is an unframed all one signal that replaces the normal
	traffic signal.
CRC	(Loss of CRC-4 Framing) The receiver is unable to synchronize to the CRC-4 frame
	pattern of the received signal.
LCV	(Line Code Violations) Activates when the incoming E1 stream presents line coding
	violations.
LOS	(Loss of Signal) Activates when no E1 signal is present from the connected E1 equipment.
	LOS is activated after receiving 192 consecutive zeros.
OOF	(Out of Frame) The receiver is unable to synchronize to the FAS framing pattern of the
	received signal.
RMT	(Received Remote Alarm) Activates when an incoming remote alarm is received from the
	E1 device, indicating that a failure has occurred in the received direction.

>E1X STATUS/CONFIGURATION/LOOPBACK > INTERFACE TYPE

(Read Only) Displays the current interface type of the E1 module as either 75 OHM or 120 OHM.

>E1X STATUS/CONFIGURATION/LOOPBACK > ALARM REPORTING

Determines whether the TRACER 64x0 unit will report active alarms. If set to DISABLED, no alarms will be displayed on this menu page. The ALARM REPORTING parameter is independently configured for the local and remote TRACER 64x0 units. When set to DISABLED, the TRACER 64x0 does not report active alarms via SNMP, the CRAFT port, alarm contacts, menu screens, or LEDs on the front panel. By default, alarm reporting is set to ENABLED.

>E1X STATUS/CONFIGURATION/LOOPBACK > CRC4 DETECTION

When ENABLED, the receiver detects the CRC-4 checksum bits in the outgoing E1 data stream and checks the received signal for errors.

>E1X STATUS/CONFIGURATION/LOOPBACK > SIGNALING

Configures the framing format for the E1 link. The TRACER 64x0 transports E1 data across the link (as long as the E1 signal is properly timed). Configure the framing format (using the SIGNALING menu) to enable the TRACER 64x0 to monitor incoming framing error events and indicate problems with the attached metallic service. The TRACER 64x0 supports MULTIFRAMED (also known as CAS), UNFRAMED (all data stream with no framing sequence bits), and FRAMED (also known as CCS). The default value is

FRAMED.

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