3com 2000 TR Manual Do Utilizador
3-6
C
HAPTER
3: I
NSTALLING
A
ND
S
ETTING
U
P
T
HE
M
ODULE
h
Check that your cable meets Fast Ethernet specifi-
cations. See Appendix C.
cations. See Appendix C.
i
Replace the cable, and check the Link Status LED
again.
again.
j
Contact 3Com Technical Support; see “Support
from 3Com”,
from 3Com”,
in
Jumper Settings
The Module can be easily damaged by electrostatic
discharge. Before handling the module, please
observe safety and electrostatic discharge precau-
tions.
discharge. Before handling the module, please
observe safety and electrostatic discharge precau-
tions.
You can configure the TR-in-FE module to operate as
MDI (default) or MDIX. Follow the rules and proce-
dure below. See Figure 3-2.
MDI (default) or MDIX. Follow the rules and proce-
dure below. See Figure 3-2.
■
MDI—If TR-in-FE module is connected to another
switch with an MDIX port.
switch with an MDIX port.
■
MDIX—IIf TR-in-FE module is connected to an end-
station or server.
station or server.
The MDIX setting provides a crossover, the MDI set-
ting does not.
A crossover cable can be used to connect two MDI or
two MDIX ports together.
ting does not.
A crossover cable can be used to connect two MDI or
two MDIX ports together.
Figure 3-2 TR-in-FE Module Jumper Settings
LK1
MDIX
MDI
MDIX
MDI
,
,
,
,
,
,
,
,
,
,
Port configured
as MDI (default)
as MDI (default)
Port configured
as MDIX
as MDIX
,
,
,
,
,
,
,
,
,
,
,
,
,