3Com 3C17500, Installation Manual

Page: 13 / 62

I/O Modules 13
24-Port
10/100/1000BASE-T
(RJ45) Module
The 24-Port 10/100/1000BASE-T (RJ45) module provides 24 10/100/1000BASE-T
(RJ45) auto-sensing Ethernet ports.
Figure 6 illustrates the front panel of the 24-port 10/100/1000BASE-T (RJ45)
module.
Figure 6 Front Panel of the
24-Port 10/100/1000BASE-T (RJ45) Module
1 Ethernet ports
2 Ethernet port LEDs
Table 20 describes the 24-port 10/100/1000BASE-T (RJ45) module LEDs.
Table 21 lists specifications of the 24-port 10/100/1000BASE-T (RJ45) module.
Transceiver, cable,
and maximum
transmission
distance 3CSFP91, 850 nm, 50/125 µm multi-mode optical fiber, 550 m (1804 ft)
3CSFP92, 1310 nm, 9/125 µm single mode optical fiber, 10 km (6 mi)
3CSFP93, RJ-45, category 5, 100 m (300 ft)
3CSFP97, 1550 nm, 9/125 µm single mode optical fiber, 70 km (43 mi)
Table 19 Specifications for the
24-Port 1000BASE-X (SFP) Module
(continued)
Specification Description
Table 20 24-Port 10/100/1000BASE-T (RJ45) Module LEDs
LED Description
LINK Off — The port is not operating
On — The port is operating
ACT Off — No data is being transmitted
Orange flashing — Data is being transmitted
Table 21 Specifications for the
24-Port 10/100/1000BASE-T (RJ45) Module
Specification Description
CPU MPC8245
BootROM 512 KB
SDRAM 128 MB
Dimensions (L x W) 366.7 x 340 mm (14.5 x 13.4 in)
Power consumption 85 W
Connector RJ-45
Number of ports 24
Transmission rate 10 Mbps half/full duplex
100 Mbps half/full duplex
1000 Mbps full duplex
Cable and maximum
transmission distance Category-5 twisted pair
100 m (328 ft)
1 2