3Com 3C16894 4-slot Chassis manual describes the 48-port 10/100/1000BASE-T PoE module LEDs

I/O Modules 17

Table 22 describes the 48-port 10/100/1000BASE-T PoE module LEDs.

Table 18 48-port 10/100/1000BASE-T PoE Module LED

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

Table 23 describes the specifications of the 48-port 10/100/1000BASE-T PoE module.

Table 19 Specifications for the 48-port 10/100/1000BASE-T PoE Module

Specification	Description
CPU	MPC8241
BootROM	512 KB
SDRAM	128 M
Dimensions (L X W)	366.7 x 340 mm (14.4 x 13.4 in.)
Maximum power consumption	70 W
Connector	RJ-45
Number of ports	48
Port transmission speed	10/100/1000 Mbps half-/full-duplex
	MDI/MDIX auto-sensing
Cables and maximum	Category 5 twisted pair with a maximum distance of 100 m
transmission distance	(328 ft.)
Compliance	IEEE802.3ab
	IEEE802.3
	IEEE802.3i
	IEEE802.3x
	IEEE802.1p
	IEEE802.1D
	IEEE802.1Q
	IEEE802.1X
	IEEE802.1s
	IEEE802.1w

48-port10/100BASE-TXThe 48-port 10/100BASE-TX FE module provides 48 10/100 Mbps auto-sensing FE Module Ethernet electrical ports.

Figure 10 illustrates the 48-port 10/100BASE-T FE module.

Figure 10 48-port 10/100BASE-T FE Module