PictureTel III ISA manual Network Interface Card Installation, Network Interface Card Overview

NETWORK INTERFACE CARD

1 INSTALLATION

This chapter describes the 3C509B network interface card (NIC), provides procedures for installing the NIC, and describes the correct network cable to use for connecting each version of the NIC to an Ethernet network.

Network Interface Card Overview

The four versions of the 3Com® EtherLink® III ISA 3C509B NICs are shown in Figure 1-1. These NICs connect your ISA or EISA PC to an Ethernet network using up to three different types of media.

LED

			RJ-45 port
	LED		AUI port
LED		LED
			BNC port
3C509B-TPO	3C509B-TPC	3C509B-TP	3C509B-COMBO

Figure 1-13C509B Network Interface Cards

Each NIC has a light-emitting diode (LED) called the link LED, which indicates whether there is an active connection between the NIC and the hub. See “Link LED” later in this chapter for a more complete description of this function.