Installation guide

3Com EtherLink II (3C503), EtherLink

II/16 (3C503-16)

Solaris Device Driver:

Device Type:

Network (Ethernet)

Adapters:

3Com EtherLink II (3C503), EtherLink II/16 (3C503-16)

Bus Type:

ISA

Connectors:

One adapter port has an RJ-45 and an AUI connector

A second adapter port has a BNC (coax) and an AUI

connector

Preconﬁguration Information

The 3C503 adapter uses the BNC or RJ-45 port (the non-AUI connector) as the

default if it cannot detect a device connected to the AUI connector.

Supported Settings

I/O Address IRQ

0x250–0x2E0 3

0x300–0x350 2

Known Problems and Limitations

The IRQ used by the 3C503 or 3C503-16 board depends on the I/O address set

using the jumpers. For example, if you conﬁgure the 3C503 or 3C503-16 at I/O

address 0x250, no other devices in your system should use IRQ 3.

The 3C503 board has a limited amount of on-board memory, which causes very

poor NFS software performance. To avoid this problem, use a 4-Kbyte read and

write buffer size to mount the NFS software over the 3C503 interface (see the

mount_nfs(1M) man page).

Conﬁguring Devices 10-71