3Com 3800 - Manual (Page 26)

1-8 C HAPTER 1: S WITCH 3800 O VERVIEW
For more information on 1000BASE-SX and 1000BASE-LX
characteristics refer to IEEE Draft P802.3z/D4.2 Tables 38-2 and 38-6.
LEDs
Table 1-2 describes the LED behavior on the Switch 3800.
Table 1-1 Media Types and Distances
Standard Media Type Mhz/Km Rating Maximum Distance
10BASE-T Category 3 UTP Cable (10Mbps) 100 Meters
100BASE-TX Category 5 UTP Cable (100Mbps) 100 Meters
1000BASE-SX
(850 nm) 62.5/125 um Multimode fiber
62.5/125 um Multimode fiber
50/125 um Multimode fiber
50/125 um Multimode fiber 160
200
400
500 220 Meters
275 Meters
500 Meters
550 Meters
1000BASE-LX
(1300 nm) 62.5/125 um Multimode fiber
50/125 um Multimode fiber
50/125 um Multimode
10u Single-mode fiber 500
400
500
NA 550 Meters
550 Meters
550 Meters
5,000 Meters
Table 1-2 Switch 3800 LEDs
LED Color Indicates
10/100Mbps Port Status LEDs
Green
Yellow
Green flashing
Off
Link is present; port is enabled.
Frames are being transmitted/received on this
port.
Link is present; port is disabled.
Link is not present.
Gigabit Ethernet Port Status LEDs
Packet Yellow
Off
Frames are being transmitted/received on this
port.
No activity on this port.
Status Green
Green flashing
Off
Link is present; port is enabled; full-duplex
operation.
Link is present; port is disabled.
Link is not present.
(continued)
SW3800.BK Page 8 Tuesday, May 5, 1998 5:20 PM