3com 3C16896 8 slot AC Chassis ユーザーズマニュアル
10
C
HAPTER
1: S
WITCH
7750 C
OMPONENTS
■
4-port 1000BASE-X-GBIC submodule
■
4-port 10/100/1000BASE-T submodule
Fixed Ports
The Switch 7750 Fabric modules provide the following fixed ports:
■
■
1000BASE-X-SFP (PoE Fabric 96 only)
■
■
Compact Flash (CF) Port
The Fabric module provides a CF port to accommodate a standard CF card, where
you can save logging information, host version information, alarming and other
diagnostic information. You can also use the CF port to upgrade software online.
you can save logging information, host version information, alarming and other
diagnostic information. You can also use the CF port to upgrade software online.
1000BASE-X-SFP Ports
The PoE Fabric 96 provides four 1000 Mbps full-duplex SFP ports. Table 4 describes
the SFP cables for these ports.
the SFP cables for these ports.
Table 8 describes the LEDs of the SFP ports.
Table 4 Cables for 1000BASE-T-SFP Modules
SFP Module
Central
Wavelength
Wavelength
Connector
Matching Cable
Maximum
transmission
distance
transmission
distance
1000BASE-SX-SFP
850 nm
LC
50/125 µm
multimode
optical fiber
cable
multimode
optical fiber
cable
550 m (1804 ft.)
62/125 µm
multimode
optical fiber
cable
multimode
optical fiber
cable
275 m (902 ft.)
1000BASE-LX-SFP
1310 nm
9/125 µm single
mode optical
fiber cable
mode optical
fiber cable
10 km (6 mi.)
1000BASE-LH-SFP
30 km (19 mi.)
1000BASE-ZX-LR-SFP
1550 nm
40 km (25 mi.)
1000BASE-ZX-VR-SFP
70 km (43 mi.)
1000BASE-T-FD-SFP
RJ-45
100 m (328 ft.)
Table 5 SFP Port LEDs
LED
Description
LINK/ACT
Off — The line is not connected.
Green — The line is connected.
Green flashing — Data is being transmitted or received.