Lantronix
SGFEB Series User Guide
33601 Rev. E
15
Automatic Link Restoration
The SGFEB will automatically restore the link between networked devices after a fault condition has been corrected. In
contrast, products from competitors generally require the user to power down, then power up the converters after a fault
condition has been corrected.
Far End Fault (FEF)
The FEF feature applies to IEEE 802.3u 100Mbit Cu/Fiber rate only. The MAC may use FEF when Auto negotiation is
disabled. When the MAC detects a PHY fault/TX loss link, a FEFI idle pattern is sent to the link partner TX (100BASE-FX
only).
Remote Fault Detect (RFD)
The RFD feature applies to 1000Mbps operation only. Remote Fault Detect (RFD) is a troubleshooting feature found on
GigEthernet copper-to-fiber media converters. By enabling RFD on the remotely located media converter, the status of the
fiber link will be monitored and any link failures will be reported back to the local converter. Should the remote converter
lose its fiber RX signal, RFD will force the converter to shut down its fiber TX port. If Link Pass Though is enabled on both
ends, then the copper ports will also be shut down to notify both end devices of the link failure.
Fiber Redundancy (Revertive / Non-revertive)
Multiport versions provide 3 or 4 port switch functionality or provide redundant fiber links, with a switchover (failover) time
of less than 1 second. In Revertive mode, after the failed link is recovered, it becomes the active link again (reverts to the
failed link). In Non-revertive mode, after the failed link is recovered, the failed link does not become active again. The 4
port version does not support Fiber Redundancy mode but does support port isolation.
New Features
1.
Jumbo 10K frame support
2.
8k MAC addresses (vs 1k)
3.
EEE 802.3az
4.
Multi-port mode default for multiple SFP assemblies.
