3Com MSR 30, MSR 20, MSR 50 manual Interfaces, which are usually used on hubs and LAN Switches

144CHAPTER 3: MULTIFUNCTIONAL INTERFACE MODULES

Table 100 Interface attributes of XMIM-16FSW/XMIM-24FSW

Attributes	XMIM-16FSW/XMIM-24FSW
Number of	16 ⋅ 100 Mbps RJ45 connector/24 ⋅ 100 Mbps RJ45 connector
connectors
Cable type	Standard (straight-through) Ethernet cable/crossover Ethernet cable
Operation mode	Auto-sensing 10M/100 Mbps, full duplex/half duplex

n	Ethernet interfaces on network adapters are usually medium dependent interfaces
	(MDIs). Cross medium dependent interfaces (MDIXs) are another type of Ethernet
	interfaces, which are usually used on hubs and LAN Switches.

Interface LEDs Figure 165 shows the XMIM-16FSW panel.

Figure 165 XMIM-16FSW panel

Figure 166 shows the XMIM-24FSW panel.

Figure 166 XMIM-24FSW panel

Each 10/100 Mbps Ethernet interface on the panel has two corresponding LEDs.

One is yellow and the other is green. Table 101 describes these LEDs.

Table 101 LEDs of the XMIM-16FSW/XMIM-24FSW FE port

LED status	Description
Green LED (LINK)	ON: A link is present.
	OFF: No link is present.
Yellow LED (ACT)	Blinking: Data is being received and sent on the port.
	OFF: No data is being received or sent on the port.

n XMIM-16FSW and XMIM-24FSW are both 1U (44.45 mm, namely, 1.75 in.) in height and each occupy two slots (the upper slot and the lower slot).

Interface Cable 10BASE-T, 100BASE-TX, and gigabit Ethernet interfaces are connected to Ethernet networks with Ethernet cables, usually category-5 twisted pair cables. Figure 167 shows the appearance of an Ethernet cable.