Fast
Ethernet
Connector
Signals
Fast Ethernet
Connector
Signals
The
two
connectors
on
the
FEIP
are
single
MIT
40-pin
D-shell
type and
single
RJ-45
You
can
use
either
one
or the other
Only one
connector
can
be
used
at
one time Each
connection
supports
IEEE
802.3u
interfaces
compliant
with
the
100BASE-X
and
100BASE-T
standards
The
RJ-45
connection
does
not require an external transceiver
however
the
MIT
connection
does
The RJ-45
modular
connector
has
strain-relief
functionality
incorporated
into
the
design
of
its
standard
plastic
connector
Table
A-6 and
Table
A-7
list
the pinouts
and
signals
for the
RJ-45 and
MIT
connectors
Table
A-6
FEIP
Port
Adapter RJ-45
Connector
Pinout
Pin
Description
Receive
Data
RxD
RxD
Transmit Data
TxD
TxD
Note
Referring
to
the
RJ-45
pinout
in Table
A-6
proper
common-mode
line
terminations
should
be
used
for
the
unused
Category
UTP
cable
pairs
4/5
and
7/8
Common-mode
termination
reduces
the contributions
to
electromagnetic
interference
EMI
and
susceptibility
to
common-mode
sources
Wire
pairs
4/5
and
7/8
are actively
terminated
in
the
RJ-45
100BASE-TX
port
circuitry
in
the
FEIP
port
adapter
Table
A-7
FEIP
Port
Adapter
Mu
Connector
Pinout
Pin1
In
Out
I/O
Description
1417
Yes
Transmit Data
TxD
12
Yes
Transmit Clock
Tx_CLK2
11
Yes
Transmit
Error
Tx_ER
13
Yes
Transmit Enable
Tx_EN
Yes
Mil
Data
Clock
MDC
47
Yes
Receive
Data
RxD
Yes
Receive
Clock
Rx_CLK
10
Yes
Receive
Error
Rx_ER
Yes
Receive
Data
Valid
Rx_DV
18
Yes
Collision
COL
19
Yes
Carrier
Sense
CRS
Yes
Mil Data
Input/Output
MDIO
2239
Common
ground
20 21
40
5.0
volts
Any
pins
not indicated
are not
used
Tx_CLK
and
RX_CLK
are provided
by
the
external
transceiver
Cabling
Specifications
A-5
Summary of Contents for 7513 Series
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