3Com 7754 - Page 30

30 CHAPTER 1: SWITCH 7750 COMPONENTS
8-port 1000BASE-X GBIC
Module
The 8-port 1000BASE-X GBIC module provides 8 external GBIC module ports. A
GBIC module is used for each data receiving/transmitting channel. The following
modules are available:
■ 3CGBIC91
■ 3CGBIC92
■ 3CGBIC97
Figure 26 illustrates the 8-port 1000BASE-X GBIC module.
Figure 26 8-Port 1000BASE-X GBIC Module
Every GBIC port has a LED, as shown in Figure 27.
Figure 27 Front Panel of the 8-Port 1000BASE-X GBIC Module
1 GBIC port
2 GBIC port LED
SFP-GE-LH70-SM1590
-CW
1590nm LC 9/125 µm single mode
optical fiber cable
70km (43 mi)
SFP-GE-LH70-SM1610
-CW
1610nm LC 9/125 µm single mode
optical fiber cable
70km (43 mi)
SFP-GE-T - RJ45 - 100m (328 ft)
Table 38 SFP Cables for the 12-port 1000BASE-X SFP and 4-port
10/100/1000BASE-T Module
SFP module
Central
wavelength
Connector Matching cable
Maximum
transmission
distance
3C16858
12