Boca BOCAHUB-24 Plus, Руководство по установке

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protect the network from excessive collisions by
“partitioning” the offending port from the rest of the
network. Once a port is partitioned, the data received
from that port will not be repeated. However, any
other data on the network will be re-transmitted on
that port. If the collisions that cause the partitioning
cease, the port will be re-connected to the rest of the
network.
The status of the partitioning scheme can be checked
at any time by observing the red PRT LED on the
front of the BOCAHUB-24. If any ports are currently
partitioned, the corresponding LED will turn on.
Link Test
The BOCAHUB-24 Plus implements the Link test
function as specified in the 802.3 10BASE-T standard.
It transmits Link test pulses to any port after that
port’s transmitter has been inactive for a short period
of time. The device connected to the port will respond
in the same manner. The Link Status of ports 1-24 can
be viewed on the green LEDs of the BOCAHUB-24
Plus. If a successful link has been established, the
corresponding LED will be ON.
Polarity Reversal
The BOCAHUB-24 Plus automatically detects and
adjusts to reversed polarity of received data.
Introduction