IMC Networks FAIL-SAFE MOR-F-632-120-EB82 - Manual (Page 5)

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About the IE-iMcV-E1-Mux/4
Overview
The IE-iMcV-E1-Mux/4 is a media converter that transports four independent E1 lines
over an existing single (or dual, “1+1”) standard 155Mbps-capable fiber optic line
operating at an effective rate of 150Mbps. One serial link (RS-232) and one Ethernet
(10/100BaseT) connection are also multiplexed onto the fiber link(s). Each of these
communication channels is transported end-to-end at full wire speed with very low
latencies.
The serial link can be used for extending an independent RS-232 interface to the
remote POP location for use in managing or controlling other devices at the POP and
supports any data rate up to 250K baud. In addition, each unit also supports an RS-
232 console port for local configuration by technical support personnel. Both of
these serial links are used for end-to-end system management, fault
detection/isolation and system diagnostics.
The IE-iMcV-E1-Mux/4 provides fault indications on the E1 and fiber links resulting
from real-time active faults. The equipment detects both E1 and fiber LOS events as
well as degraded E1 or fiber lines. The unit will automatically forward AIS signaling to
the remote unit after detecting an LOS (Loss Of Signal) condition on any incoming E1
line. Severe receive optical link failures will result in the automatic generation of AIS
signaling onto the E1 lines connected to the unit receiving the corrupted optical
signal.
In addition, CV (Code Violation) errors are detected on all incoming E1 lines and BER
calculations for the optical line are constantly being performed by circuitry within the
unit's optical receiver. Error conditions are displayed on the unit’s front panel LED
indicators and reported to system management software (if equipped) where more
detailed error information can be displayed on the user’s GUI.
Systems equipped with 1+1 fiber redundancy can benefit from the enhanced
reliability of a protected fiber link and the system’s ability to automatically switch to
the “best” fiber line should one line become impaired or fail. This automatic
switchover capability is designed to occur rapidly (<50 milliseconds), minimizing data
loss and system down time. In addition, automatic switchover can be overridden;
this allows the end-user to force the unit to receive on a specific optical line if desired
The IE-iMcV-E1-Mux/4 offers the following features:
• Four E1 ports on RJ-48 connectors with surge protection
• One full bandwidth Ethernet 10/100BaseT port
• 1+1 protection switching via two SFP-based optical ports
• DDMI supported on SFP ports
• One end-to-end serial RS-232 port on an RJ-48 connector