Boca NET-8, Installation Manual, Page: 20 / 56

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BOCA NET BOCA NET BOCA NET BOCA NET BOCA NET-8 Ethernet Kit -8 Ethernet Kit -8 Ethernet Kit -8 Ethernet Kit -8 Ethernet Kit
3.4 Straight-Thr 3.4 Straight-Thr
3.4 Straight-Thr 3.4 Straight-Thr
3.4 Straight-Through ough
ough ough
ough W W
W W
Wir ir
ir ir
iring ing
ing ing
ing
If the twisted pair link segment is to connect two devices and
only one of the devices features an internal crossover, the two
pairs of wires must be straight-through:
STRAIGHT STRAIGHT STRAIGHT STRAIGHT STRAIGHT-THROUGH RJ-45 PIN ASSIGNMENTS -THROUGH RJ-45 PIN ASSIGNMENTS -THROUGH RJ-45 PIN ASSIGNMENTS -THROUGH RJ-45 PIN ASSIGNMENTS -THROUGH RJ-45 PIN ASSIGNMENTS
Device 1 Device 2
1 (Rx+) 1 (Tx+)
2 (Rx-) 2 (Tx-)
3 (Tx+) 3 (Rx+)
6 (Tx-) 6 (Rx-)
3.5 Cr 3.5 Cr
3.5 Cr 3.5 Cr
3.5 Crosso osso
osso osso
ossov v
v v
ver er
er er
er W W
W W
Wir ir
ir ir
iring ing
ing ing
ing
If you are connecting two devices directly that do not
implement internal crossover, then the crossover must be
implemented in the wiring.
CROSSOVER RJ-45 PIN ASSIGNMENTS CROSSOVER RJ-45 PIN ASSIGNMENTS
CROSSOVER RJ-45 PIN ASSIGNMENTS CROSSOVER RJ-45 PIN ASSIGNMENTS
CROSSOVER RJ-45 PIN ASSIGNMENTS
Device 1 Device 2
1 (+) 1 (+)
2 (-) 2 (-)
3 (+) 3 (+)
6 (-) 6 (-)
NOTE ON SIGNAL POLARITY NOTE ON SIGNAL POLARITY
NOTE ON SIGNAL POLARITY NOTE ON SIGNAL POLARITY
NOTE ON SIGNAL POLARITY
If a receive data pair has the “+” and “-” signals unintentionally
reversed, the BOCA NET-8 automatically detects and adjusts
this reversal so the data path will function properly.
The assignments will vary if both are The assignments will vary if both are
The assignments will vary if both are The assignments will vary if both are
The assignments will vary if both are
“X”, or both are NOT “X”.
“X”, or both are NOT “X”.
“X”, or both are NOT “X”. “X”, or both are NOT “X”.
“X”, or both are NOT “X”.
9370.p65 1/28/99, 2:57 PM 20