3Com 3C16896 8 slot AC Chassis Each 100 Mbps optical port has a green LED, as shown in Figure

22CHAPTER 1: SWITCH 7750 COMPONENTS

Figure 16 24-Port 100BASE-FX MMF FE Module

Each 100 Mbps optical port has a green LED, as shown in Figure 17.

Figure 17 Front Panel of the 24-Port 100BASE-FX MMF FE Module

1 2

1 Ethernet port

2 Ethernet port LED

Table 27 describes the status of the 24-port 100BASE-FX MMF FE module LEDs.

Table 27 24-Port 100BASE-FX MMF FE Module LEDs

LED	Description
LINK/ACT	Green — The port is connected.
	Off — The port is not connected.
	Green flashing — Data is being transmitted or received.

The 24-port 100BASE-FX MMF FE module requires a 62.5/125 µm multi-mode optical fiber cable with an MT-RJ connector and a central wavelength of 1300 nm.

Table 28 describes the specifications of the 24-port 100BASE-FX MMF FE module.

Table 28 Specifications for the 24-Port 100BASE-FX MMF FE Module

Specification	Description
CPU	MPC850
BootROM	512 KB
SDRAM	64 MB
Dimensions (L x W)	366.7 x 340 mm (14.5 x 13.4 in)
Maximum power	55 W
consumption
Connector type	MT-RJ
Number of ports	24
Port transmission speed	100 Mbps, full-duplex