DIGITAL COMMUNICATIONS ASSOCIATES, INC.
IRMA3 COMVERTIBLE
|
NIC Type |
Ethernet |
|
Network Transfer Rate |
10Mbps |
|
Data Bus |
8-bit ISA/MCA |
|
Topology |
Linear Bus, Star |
|
Wiring Type |
Unshielded twisted pair RG-58A/U 50ohm coaxial |
|
Boot ROM |
Not available |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Unshielded twisted pair port |
CN1 |
RG-58A/U 50ohm coaxial port |
CN2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
| » |
High sensitivity selected |
JP2 |
Pins 1 & 2 closed |
|
Low sensitivity selected |
JP2 |
Pins 2 & 3 closed | |
|
BASE I/O ADDRESS SELECTION | ||||
|
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
|
X’680"h |
On |
On |
On |
Off |
|
X’A80’h |
On |
On |
Off |
On |
|
X’E80’h |
On |
On |
Off |
Off |
|
X’6A0’h |
Off |
On |
On |
Off |
|
X’AA0’h |
Off |
On |
Off |
On |
|
X’EA0’h |
Off |
On |
Off |
Off |
|
X’6C0’h |
On |
Off |
On |
Off |
|
X’AC0’h |
On |
Off |
Off |
On |
|
X’EC0’h |
On |
Off |
Off |
Off |
|
X’6E0’h |
Off |
Off |
On |
Off |
|
X’AE0’h |
Off |
Off |
Off |
On |
|
X’EE0’h |
Off |
Off |
Off |
Off |
|
X’280’h |
On |
On |
On |
On |
|
CABLE TYPE SELECTION | ||
|
Type |
JP1 | |
| » |
RG-58A/U 50ohm coaxial |
Pins 2 & 3 closed |
|
Unshielded twisted pair |
Pins 1 & 2 closed | |
|
MISCELLANEOUS TECHNICAL NOTES |
|
Note: The backplate must be changed for MCA and for ISA. |