PCI FX-05SC, User Manual

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The STP ports on FX-05SC support
“
A u t o - n e g o t i a t i o n
”
feature. This
technology automatically sets the best possible bandwidth when a
connection is established with another network device (usually at Power On
or Reset). This is accomplished by detecting both the transmission mode
and speed immediately after both devices are connected. With Auto-
negotiation support, the FX-05SC can handle both 10Base-T and 100Base-
TX devices in either Half- or Full-Duplex mode.
There is a non-standardized technology called
“
A u t o - s e n s i n g
”
. Unlike
Auto-negotiation, Auto-sensing detects only the 10BASE-T - 100BASE-TX
speed modes (CANNOT recognize the duplex modes). Sometimes a
network card or hub with Auto-sensing support may fail to establish a valid
link with the FX-05SC. Should you encounter this problem, please disable
the Auto-sensing function of the card or hub and set its transmission mode
to 100Mbps half-duplex. Then, reboot the system (PC with the network card
or hub) and see whether a link can be established between the device and
the FX-05SC.
16
FX-05SC
Appendix B
About Auto-Negotiation