Connecting The Network Cables; 1000Base-Sx Fiber Nics - 3Com EtherLink 3C985B-SX Installation And User Manual

7 Replace the system cover and disconnect any personal anti-static devices.
8 Power the system on.
Once the system returns to proper operation, the NIC hardware is fully installed. You must next connect the
network cables (see page 13) and install the NIC driver software (see Chapter 3).

Connecting the Network Cables

This section provides information you'll find useful in attaching a network device to either the 1000Base-SX or
10/100/1000Base-T version of the NIC.

1000Base-SX Fiber NICs

The NIC has one SC-type connector used for attaching the system to a Gigabit Ethernet fiber-optic segment. The
port is auto-negotiating and supports full-duplex operation.
1 Prepare an appropriate cable.
The following table lists cable characteristics required for connecting to 1000Base-SX ports:
Medium Diameter
SX 62.5 Microns
50 Microns
2 As shown in the following diagram, connect one end of the cable to the NIC.
3 Connect the other end of the cable to a Gigabit Ethernet network port.
Attach the cable connector so that the TX (transmit) port on the NIC is connected to the RX (receive) port of
the device at the other end of the cable.
NOTE: The NIC port LEDs are not functional (they will not reflect port link or data status) until the NIC driver
software is installed. See the table for the 1000Base-SX NIC in "Physical Description" on page 9 for a
description of NIC port LED operation. See Chapter 3 for driver installation and configuration instructions.
Frequency
Shortwave (850 nanometers)
Shortwave (850 nanometers)
Connecting the Network Cables
Cable Type Operating Range
Multimode fiber 2 to 275 meters
(6.5 to 902 feet)
Multimode fiber 2 to 550 meters
(6.5 to 1804 feet)
(in compliance with
IEEE 802.3-1999)
13