LevelOne Fast Ethernet Switch FSW-1621 - Manual (Page 5)

2. Hardware Description
This Section mainly describes the hardware of the 16/24-port
10/100Base-TX Switch, and gives a physical and functional overview of
this Switch.
The physical dimensions of the FSW-1621/2421 is:
250mmx 133 mm x 37mm (L x W x H)
Front Panel
FSW-1621/2421 consists of 16/24 x 10/100Base-TX RJ-45 ports. The
LED Indicators are also located on the front panel of the Switch.
Figure 2-1. The Front view of FSW-1621/2421
RJ-45 ports (Auto MDI/MDIX): 16/24x 10/100Mbps auto-sensing port for
10Base-T or 100Base-TX devices connection.
[In general, MDI means connecting to another Hub or Switch while MDIX
means connecting to a workstation or PC. Therefore, Auto MDI/MDIX
means that you can connect to another Switch or workstation without
changing non-crossover or crossover cabling.]