3com 3C16896 8 slot AC Chassis User Manual

Page of 80
I/O Modules
23
20-Port 
10/100/1000BASE-T 
Module
The 20-Port 10/100/1000BASE-T module provides 20 10/100/1000BASE-T 
auto-sensing Ethernet ports.
Figure 18 illustrates the 20-Port 10/100/1000BASE-T Module.
Figure 18   20-Port 10/100/1000BASE-T Module
Figure 19 illustrates the front panel of the 20-port 10/100/1000BASE-T module.
Figure 19   Front Panel of the 
20-Port 10/100/1000BASE-T Module
 
1 Ethernet port
2 Ethernet port LED
Table 29 describes the 20-port 10/100/1000BASE-T module LEDs.
Cables and maximum 
transmission distance
62.5/125 µm multi-mode optical fiber up to 2 km (1.3 mi)
Compliance
IEEE 802.3
 
IEEE 802.3i
 
IEEE 802.3u
 
IEEE 802.3x
Table 28   Specifications for the 24-Port 100BASE-FX MMF FE Module (continued)
Specification
Description
Table 29   20-Port 10/100/1000BASE-T Module LEDs 
LED
Description
LINK/ACT
Off — The port is not operating.
 
On — The port is operating.
 
Green flashing — The port is transmitting or receiving data
3C16863
3C16863
1
2