3Com 3C16850, Руководство по установке, Страница: 14 / 70

14 C
HAPTER
1: S
WITCH
7700 C
OMPONENTS
Table 12 lists the specifications for each of the 4-port 1000BASE-X-GBIC
submodule.
4-Port
10/100/1000BASE-T
Submodule
The 4-Port 10/100/1000BASE-T submodule provides four 10/100/1000 Mbps
auto-negotiation service ports.
Figure 4 illustrates the 4-port 10/100/1000BASE-T submodule.
Figure 4 4-Port 10/100/1000BASE-T
Submodule
1 Ethernet port
2 Ethernet port LEDs
Table 13 describes the 4-port 10/100/1000BASE-T submodule LEDs.
Table 14 lists specifications of the 4-port 10/100/1000BASE-T submodule.
Table 12
4-Port 1000BASE-X-GBIC Submodule Specifications
Optional GBIC
Module Central
Wavelength Connector
Type Interface Fiber
Specifications
Max.
Transmission
Distance
1000BASE-SX-MM
(3CGBIC91)
850 nm SC 50/125 µm
multi-mode fiber
62.5/125 µm
Multi-mode fiber
500 m (1640 ft)
220 m (722 ft)
1000BASE-LX-SM-IR
(3CGBIC92)
1310 nm SC 9/125 µm
Single-mode fiber 10 km (6 mi)
1000BASE-LX-SM
(3CGBIC97)
1550 nm SC 9/125 µm
Single-mode fiber 40 km (25 mi)
70 km (43.5 mi)
Table 13
4-Port 10/100/1000BASE-T Submodule LEDs
LED Description
LINK Off — The link is not operating.
On — The link is operating normally.
ACT Off — No data is being transmitted.
Green flashing — Data is being transmitted.
Table 14
4-Port 10/100/1000BASE-T Submodule Specifications
Specification Description
Connector type RJ-45
Number of ports 4
Port speed 1000 Mbps full duplex
100 Mbps half/full duplex
10 Mbps half/full duplex
MDI/MDI-X auto-sensing
Cable and maximum
transmission distance Category 5 twisted pair up to 100 m (328 ft)
3C16873 3C16873
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