Transition Networks Media Converter 10/100/1000BTX to 1000BFX SPOEB1011-100 Manual De Usuario

©2006 Transition Networks, Inc.
All trademarks are the property of their respective owners.
Technical information is subject to change without notice.

Far End Fault (FEF) is a troubleshooting feature that is generally used in conjunction with Link Pass Through
to notify both end devices of a loss of link. In the event of a loss of the fiber RX signal on the far end
converter the converter will automatically generate a Far End Fault signal and send it on its TX fiber port to
notify the near end converter of a fiber link loss. Link Pass Through will then disable the copper links on
both ends; alerting both end devices of network trouble (see diagram below).

Transition Networks’s media converters that include the FEF feature do not need to be used as pictured
above as they will work with other network devices that support Far End Fault per IEEE standards.

Both end devices automatically notified of link loss

Prevents loss of valuable data unknowingly transmitted over invalid link

Allows for quick diagnosis and resolution of network problems

If someone tells you media conversion

is a commodity product that anyone can

bring to market, they probably haven't

looked at the extensive product suite

offered by Transition Networks. With the

industry's most comprehensive offering

of full-featured products, Transition's

media converters stand out as "the

choice" among industry IT professionals.

Generally, media converters are low-level

OSI model devices with no IP or MAC

addresses and therefore are transparent

to the network. This "transparency"

makes them very inexpensive and easy

to use, but also can make

troubleshooting the network very

difficult. In an effort to overcome this

difficulty and to make media converters

"visible" to network managers, Transition

has designed their full-featured products

to include the most advanced features

on the market today.

Automatically detects and configures the twisted pair port on the converter to the correct MDI or MDI-X
configuration.

Eliminates an entire category of troubleshooting

No need to identify cable type—straight-through or crossover

No user intervention required to determine correct button / switch settings

Auto-Negotiation allows devices to perform automatic configuration to achieve the best possible mode of
operation over a link. Devices with this feature will broadcast their speed (10Mbps, 100Mbps, etc.) and
duplex (half/full) capabilities to other devices and negotiate the best mode of operation between the two
devices.

While the inclusion of this feature is beneficial, the ability to disable it is equally beneficial. In the event of a
non-negotiating end device trying to connect to a negotiating device, the mode of operation will drop to the
least common denominator between the two devices (i.e. 100Mbps, half-duplex). Disabling this feature
gives the user the ability to force the connection to the best mode of operation when trying to link with a
non-negotiating device. Most Transition converters with Auto-Negotiation will allow you to disable this
feature.

Optimal link established automatically

Quick and easy installation

No user intervention required to determine best mode of operation