Ports
RJ-45 ports (Auto MDI/MDIX): The RJ-45 ports are auto-sensing for 10Base-T, 100Base-TX or 1000Base-T devices connections and Auto MDI/MDIX.
RJ-45 Pin Assignments
|  | Pin Number | Assignment | 
|  | 
|  |   |   | 
|  | 1 | Tx+ | 
|  |   |   | 
|  | 2 | Tx- | 
|  |   |   | 
|  | 3 | Rx+ | 
|  |   |   | 
|  | 6 | Rx- | 
|  |   |   | 
All ports on this industrial switch 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 cable, 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 10BASE-T/100BASE-TX/1000BASE-T MDI and MDI-X port pin outs are as tabled below.
|  | Pin MDI-X | Signal Name | MDI Signal Name | 
|  | 
|  |   |   |   | 
|  | 1 | Receive Data plus (RD+) | Transmit Data plus (TD+) | 
|  |   |   |   | 
|  | 2 | Receive Data minus (RD-) | Transmit Data minus (TD-) | 
|  |   |   |   | 
|  | 3 | Transmit Data plus (TD+) | Receive Data plus (RD+) | 
|  |   |   |   | 
|  | 6 | Transmit Data minus (TD-) | Receive Data minus (RD-) | 
|  |   |   |   | 
Straight Through Cable Schematic
| 8 | Manual Documentation Number: EIR608-xSFP_0708m | 
|   | 
|   | B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com | 
|   | B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com |