IBM 09-0572-000 User Manual
B-4
A
PPENDIX
B: S
PECIFICATIONS
Ring Speed
The 3C619C adapter operates at either 4- or 16-Mbps ring
speed. The adapter ring speed must match the speed of the
token ring network. The default is 16 Mbps.
speed. The adapter ring speed must match the speed of the
token ring network. The default is 16 Mbps.
I/O Base Address
In IBM mode when only one adapter is installed, it is
designated the Primary adapter. The Primary/Alternate
option can be changed with the Configuration and
Diagnostic Program. The base address allowed in IBM mode
is A20h or A24h. The default is A20h.
designated the Primary adapter. The Primary/Alternate
option can be changed with the Configuration and
Diagnostic Program. The base address allowed in IBM mode
is A20h or A24h. The default is A20h.
In 3Com mode the adapters are designated by their I/O base
addresses. The I/O base addresses allowed in 3Com mode are
as follows, with the default in bold:
addresses. The I/O base addresses allowed in 3Com mode are
as follows, with the default in bold:
If a system resource conflict exists, you may have to change
the settings of other adapters or options that are in your PC.
the settings of other adapters or options that are in your PC.
A20h
260h
2E0h
370h
A24h
270h
300h
380h
200h
280h
310h
390h
210h
290h
320h
3A0h
220h
2A0h
330h
3B0h
230h
2B0h
340h
3C0h
240h
2C0h
350h
3D0h
250h
2D0h
360h
3E0h