3Com 7754 - Page 13

Fabric 32 Submodules 13
Figure 4 4-Port 1000BASE-X-GBIC Submodule
Ethernet GBIC port
2 Ethernet GBIC port LED
Table 12 describes the 4-port 1000BASE-X-GBIC submodule LEDs.
Table 13 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 5 illustrates the 4-port 10/100/1000BASE-T submodule.
Figure 5 4-Port 10/100/1000BASE-T Submodule
1 Ethernet port
2 Ethernet port LEDs
Tab le 12 4-Port 1000BASE-X-GBIC Submodule LEDs
LED Description
LINK/ACT Green — The link is operating normally.
Off — The link is not operating.
Green flashing — Data is being transmitted or received.
Tab le 13 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)
3C16874
12
3C16873
3C16873
12