3com 3C16896 8 slot AC Chassis User Manual

C

HAPTER

 1: S

WITCH

 7750 C

OMPONENTS

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

3C16858

1

2