B&B Electronics 857-18111 - Manual User Manual

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FX LinkLoss (FXLL)

FX LinkLoss is a link integrity monitoring feature that forwards fiber link faults to the
RJ-45 DATA port to indicate that a fiber link fault has occurred. FX LinkLoss can be
enabled in iView².

Link Fault Pass-Through (LFPT)

Link Fault Pass-Through (LFPT) is a troubleshooting feature that passes a link fault from
the Ethernet port on one module through to the Ethernet port on the other module.
LFPT can be enabled via iView² or through the console port.

The link fault is passed through the media conversion and is observed at each end. It
acts just as it would if the end devices were directly connected without a fiber link.

E1 Ports Setup
Alarm Level

E1 lines are defined as LOST when no signal is received as defined by ITU G.775
specifications LOS, and are considered in error with a BER of 10^-6. If either of
these conditions lasts for more than 2.5 seconds, an ALARM state is declared. This
error condition must be absent for 10 seconds for the alarm state to clear.

The starting and ending event of all alarm conditions will generate an SNMP TRAP
when the unit is installed in a managed chassis and set to the IS state. During initial
installation or normal maintenance, the end-user can place the unit in the OOS (Out-
Of-Service) state to inhibit unwanted SNMP TRAP alarms.

Last Gasp

This feature alerts the end user if power to the device fails, and is permanently
enabled. Since the IE-iMcV-E1-Mux/4 modules must be installed as a Host/Remote
pair, the Host will report a power failure by sending an alarm trap to management.
The Host will maintain the Last Gasp alarm state until it can verify that power has
been restored.

Unit Service State

When selecting In-Service, Traps reporting is enabled. If Out-of-Service is selected,
Traps reporting is disabled. A Trap is sent when the status is changed from
Enabled/Disabled or Disabled/Enabled.

E1 Port Equipment

Within each E1 port setup, the state of the port can be set to equip or not-equipped.
When set to not-equipped, the end user has the ability to perform maintenance on
the line without impacting the other parts on the module.