3COM

ETHERLINK III 3C509B-TP

NIC Type

Ethernet

Network Transfer Rate

10Mbps

Data Bus

16-bit ISA

Topology

Linear Bus, Star

Wiring Type

Unshielded twisted pair

AUI transceiver via DB-15 port

Boot ROM

Available (location unidentified)

CONNECTIONS

Function

Label

Function

Label

Unshielded twisted pair port

CN1

AUI transceiver via DB-15 port

CN2

DIAGNOSTIC LED(S)

LED

Status

Condition

LED1

On

Network connection is good

LED1

Blinking

Cable Polarity is reversed

LED1

Off

Network connection is broken

Note: When you first install the adapter and power up the computer, the LED lights, but the network connection is not active. For the network connection to be good you need to run the Group 3 test or have loaded the network drivers.