WDR-3124A
Introduction
1-13
Communication Connections
This section shows the pin assignments for the Ethernet and serial ports.
10/100BaseT(X) Ethernet Port Connection
The following shows the pinouts for both MDI (NIC-type) ports and MDI-X (HUB/Switch-type) ports.
MDI Port Pinouts
MDI-X Port Pinouts
8-pin RJ45
Pin
Signal
Pin
Signal
1
Tx+
1
Rx+
2
Tx-
2
Rx-
3
Rx+
3
Tx+
6
Rx-
6
Tx-
1000BaseT Ethernet Port Connection
1000BaseT data is transmitted on differential TRD+/- signal pairs over copper wires.
MDI/MDI-X Port Pinouts
Pin
Signal
1
TRD(0)+
2
TRD(0)-
3
TRD(1)+
4
TRD(2)+
5
TRD(2)-
6
TRD(1)-
7
TRD(3)+
8
TRD(3)-
Serial Connection
The WDR-3124A has one RS-232 (8-pin RJ45) console port located on the front panel. Use either an
RJ45-to-DB9 or RJ45-to-DB25 cable to connect the WDR-3124A’s console port to your PC’s COM port. You may
then use a console terminal program to access the WDR-3124A for console configuration.
Console Pinouts for 10-pin or 8-pin RJ45
10-Pin Description 8-Pin
1
–
2
DSR
1
3
RTS
2
4
GND
3
5
TxD
4
6
RxD
5
7
DCD
6
8
CTS
7
9
DTR
8
10
–
NOTE
The pin numbers for both 8-pin and 10-pin RJ45 connectors (and ports) are typically not labeled on the
connector (or port). Refer to the Pinout diagram above to see how RJ45 pins are numbered.
Summary of Contents for WDR-3124A
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