Fast Ethernet Switching System User’s Guide
Ports
MDI-X Ports
The ports in the 12-Port 10/100-TX module are MDI-X crossover ports. The pin arrangement is the same as the arrangement in a crossover cable. The advantage of MDI-X ports is that you can connect a device with an MDI-II port without using a crossover cable. The steps for connecting the DES-5200 to 10 Mbps devices or 100 Mbps devices are the same. All the ports will auto negotiate the proper speed and duplex mode. There are two full sized TX modules and one half sized TX module available for the DES-5200. The chassis supports a maximum of 28 10/100-TX ports.
Fiber Optic Ports
The DES-5200 supports 100BASE-FX and 1000BASE-SX. The chassis supports a maximum of 20 100BASE-FX ports and a maximum of 2 1000BASE-SX ports.
There are two 100BASE-FX modules available: a full size 8-Port 100BASE-FX module and a 2-Port 100BASE-FX half size module. The 100BASE-FX ports support full and half duplex at 100 Mbps. The ports do not support 10 Mbps.
A half size 1-Port 1000BASE-SX module is available. The 1000BASE-SX module only supports full duplex at 1000 Mbps.
Refer to Installing Optional Modules for installation instructions. Refer to Cable Specifications for information on cable types and connectors.
Follow these steps to connect cables to the DES-5200:
1.Check for the appropriate cable configuration for each device.
2.Plug one end of the cable into any of the ports.
3.Plug the other end into the appropriate port on the other device.
4.Verify that the LED indicates connection at the proper speed and duplex mode.
RS-232 Port
Follow these steps to connect the DES-5200 and another device:
1.Plug one end of the cable provided into the port.
2.Plug the other end into the PC.
3.Run HyperTerminal or a terminal emulation program using the settings given for Local Console Management at the beginning of Chapter 5.
