iMcV-E1-Mux4, Ethernet Enhanced
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HDB3
High Density Bipolar 3 Coding: A physical-layer signal encoding
scheme defined for E1 transmission which ensures sufficient
signaling transitions for robust clock/data recovery.
IS
In-Service stat is the normal state of an active port with normal
error reporting.
LED
Light Emitting Diode: A small stack of lights to indicate link,
duplex or other options.
LFPT
Link Fault Pass-Through: LFPT can be enabled via iView² or
through the console port.
LOF
Loss Of Frame: An error condition where the receiver/decoder
misses detection of the framing signal.
LOS
Loss Of Signal: An error condition where the receiving line
interface unit does not detect a signal.
MDI/MDIX
Media-Dependent Interface/ Media-Dependent Interface
Crossover. The ability of an Ethernet port to automatically detect
and configure its cabling connections to accommodate crossover
or non-crossover wiring, depending on its link partner and
cabling.
MIB
Management Information Base: A database of objects that can
be monitored by a network management system. Both SNMP
and RMON use standardized MIB formats that allow any SNMP
and RMON tools to monitor any device defined by a MIB.
MSA
Multi-Source Agreement (SFP): The standard an SFP must meet
to be compatible in network devices.
OOS
Out-Of-Service, OOS, is used by the CRAFT personnel to turn
OFF the alarm reporting so they can service the line without
causing alarm TRAPS to be sent to the NOC Center. The LEDs
display a line status but do not report any line related alarms
back to the NOC. A card removal or insertion is still reported, but
a PORT up/down or changes to its configuration are not.
POP
Point(s) Of Presence: The demarcation point where carrier
owned equipment is located at the customer site.
