2 - Asante

Configuring PortsStatus LED/Button3-in-1 uplinkMeaning/FunctionON (green) — active.OFF (gray) — inactive.Either UTP or AUI LED is on. ON indicates the connectiontype currently used for the uplink to this hub.If hub is connected to BNC port, neither LED is on.Control ButtonButtonsLink Test disableAuto polaritycorrection OffTable 4-4Jabber control disableReduce thresholddisablePort Control ButtonsMeaning/FunctionOUT (green) or IN (yellow)(Default = OUT)OUT = link test enabled (default)IN = Link test disabledLink Test is a signal (pulse) sent by current hubs andstations to indicate the presence of the link. Turn off theLink Test for any port connected to a pre-10Base-T device(one not supporting this test). The two ends of each linkmust have the same status — Link Test supported/on orunsupported/off —for transmission to take place.OUT = Polarity correction enabled (default)IN = Polarity correction disabledShould be enabled (button OUT) in most cases. Thispermits the hub to make the necessary electricalcorrections if the cable used does not reverse polaritywithin wire pairs.OUT= Jabber control enabled (default)IN = Jabber control disabledOUT should usually be used. Jabber control enables thehub to detect long packets that may otherwise interferewith normal traffic. If jabber is detected, the hub autopartitionsthe offending port and increments the jabbercounter.Can be disabled (button IN) to enable transmission ofvariant formats such as those used in large backupoperations.OUT = Reduce threshold disabled (default)IN = Reduce threshold enabledCan be used to decrease the noise threshold (tolerance) inorder to allow use of longer twisted-pair links.Page 4-13