3Com 3CR990-TX-95, 3CR990-TX-97, 3CR990SVR97, 3CR990SVR95 Make sure that cable requirements are met

Preparing the NIC and the Computer 33

2Make sure that cable requirements are met.

The RJ-45 port provides a 10 Mbps or 100 Mbps connection automatically, depending on the speed of the connected hub or switch.

The following table shows the cable requirements and maximum network cable lengths for the RJ-45 port.

Network Envi-	Cable Required	Maximum
ronment		Cable Length
10 Mbps	Category 3, 4, or 5	100 m (328 ft)
(10BASE-T)	unshielded twisted-pair
100 Mbps	Category 5 unshielded	100 m (328 ft)
(100BASE-TX)	twisted-pair

3Unpack and inspect the NIC for damage.

4Exit all open applications and user processes.

5Turn off the power to the computer and attached devices.

6Unplug the power cables from the power source.

7Remove the computer cover.

8Locate an empty, nonshared bus-mastering PCI slot and remove its slot cover. Save the screw, if there is one.

Do not install the NIC in a shared PCI slot. Avoid any

PCI slot next to an ISA slot. This is often a shared slot and does not support bus mastering.

If you do not know how to identify a PCI slot, check the computer documentation or ask the system administrator.

If you are planning to install the Remote Wake-Up cable, choose an empty PCI slot that is close to the Remote Wake-Up connector on the computer motherboard. The Remote Wake-Up cable is only required if the computer complies with PCI 2.1 and you want to use the Remote Wake-Up. The cable is not required if the computer complies with PCI 2.2. (For information on obtaining a Remote Wake-Up cable from 3Com, see Remote Wake-Up Cable on page 22.)