Ports - B&B Electronics Elinx EIR418-2SFP-T User Manual

Ports

RJ-45 ports: Eight RJ-45 ports auto-sense for 10, 100 Mbps while two ports auto-sense for
10, 100 or 1000 Mbps device connections.
connections to switches, workstation and other equipment without changing straight
through or crossover cabling.
straight through and crossover cables.
• RJ-45 Pin Assignments
Note "+" and "-" signs represent the polarity of wire pair.
All copper ports on the EIR418-2SFP-T support automatic MDI/MDI-X operation, you can
use straight-through cables (See Figure below) for all network connections to PCs or servers,
or to other switches or hubs. In straight-through cables, pins 1, 2, 3, and 6, at one end of the
cable, are connected straight through to pins 1, 2, 3 and 6 at the other end of the cable. The
table below shows the 10BASE-T / 100BASE-TX MDI and MDI-X port pin outs.
Pin
1
2
3
6
6
The charts below show the cable pin assignments for
Pin Number
1
2
3
6
MDI-X Signal Name
Receive Data plus (RD+)
Receive Data minus (RD-)
Transmit Data plus (TD+)
Transmit Data minus (TD-)
The auto MDI/MDIX feature allows
Assignment
Tx+
Tx-
Rx+
Rx-
MDI Signal Name
Transmit Data plus (TD+)
Transmit Data minus (TD-)
Receive Data plus (RD+)
Receive Data minus (RD-)
Manual Documentation Number EIR418-2SFP-T – 0109m
Hardware Description
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