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TB14 and TB14H 10Mb Media Converters Installation and User Guide (09/04)
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Cooling Method: Convection, plus the case is used as a heat sink on “H” models
Media Converter LED Indicators:
LED TB14 TB14H Description
PWR unit unit Steady ON when power is applied
Link TP, TP Steady ON when proper link is
established at both ends of the segment.*
RX/A TP, BNC TP, BNC Blinking indicates activity, port is receiving
packets. (Steady On or Off = no RX activity).
POL TP TP. Indicates the unit has detected a TP receive
wire-pair signal inversion (polarity).
COL* . TP, BNC. TP, BNC Indicates unit is simultaneously transmitting
and receiving data from the cables.
JAB* n.a. unit Indicates jabber (illegal packet length fault)
condition. when lit,
Segment is partitioned, .
NOTE:
*COL and JAB LEDs, only on TB14 and TB14H units, are indicators applicable to
standard Ethernet collision domains with only half-duplex operation.