SBFTF10xx-10x
Operation
Using the Status LEDs
Use the status LEDs to monitor the media converter and the network connections.
The “FD” and “LACT” LEDs refer to the fiber port.
F(ull) D(uplex)
On = Full-duplex fiber connection.
Off = Half-duplex fiber connection.
L(ink) ACT(ivity)
On = Fiber link connection.
Flashing = Fiber network activity.
P(o)W(e)R
On = Connection to external AC or DC power.
Duplex/Link Speed |
FD | |
LACT | |
PWR | 10/100TX |
100Base-FX |
The two-color LEDs refer to the twisted-pair copper port.
Duplex/Link LED
Amber = A link on the half-duplex twisted-pair copper link.
Flashing Amber = Activity on the half-duplex copper link.
Green = A link on the full-duplex twisted-pair copper link.
Flashing Green = Activity on the full-duplex copper link.
Speed LED
Amber = 10 Mb/s operation.
Green = 100 Mb/s operation.
Operation -- Continued
Product Features
Rate Conversion
The media converter allows connection of 10Mb/s terminal devices on a 10Base-T legacy Ethernet copper network to 100Mb/s terminal devices on a 100Base-TX fast Ethernet copper network and/or to 100Mb/s terminal devices on a 100Base-FX fast Ethernet fiber network.
Auto-Negotiation
The Auto-Negotiation feature allows the SBFTF10xx-10x media converter to automatically configure itself to achieve the best possible mode of operation over a link. The media converter broadcasts its speed (10 Mb/s or 100 Mb/s) and duplex capabilities (full or half) to the other devices and negotiates the best mode of operation. Auto-Negotiation allows quick and easy installation because the optimal link is established automatically.
A scenario where the media converter is linked to a non-negotiating device is a case where the user may want to disable Auto-Negotiation. In this instance, the mode of operation will drop to the least common denominator between the two devices (e.g.: 10 Mb/s, half-duplex). Disabling this feature gives the user the ability to force the connection to the desired speed and duplex mode of operation.
AutoCross™
When the AutoCross feature is activated, it allows either straight-through (MDI) or crossover (MDI-X) copper cables to be used when connecting to 10Base-T or 100Base-TX devices. AutoCross determines the characteristics of the connection and automatically configures the unit to link up, regardless if the copper cable is MDI or MDI-X configuration. (Transition networks recommends leaving the device in the default “enable” mode.)
Link Pass-Through
The Link Pass-Through feature allows the media converter to monitor both the fiber and copper RX (receive) ports for loss of signal. In the event of a loss of an RX signal (1), the media converter will automatically disable the TX (transmit) signal (2), thus, “passing through” the link loss (3). The far-end device is automatically notified of the link loss (4), which prevents the loss of valuable data unknowingly transmitted over an invalid link.
