DIAMOND FLOWER, INC.
MS-422
|
Card Type |
Multi I/O card |
|
Chipset/Controller |
UMC82450 |
|
I/O Options |
Serial ports (2) |
|
Maximum DRAM |
N/A |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Protective/ground connector |
JP9 |
|
Serial port 2 |
CN2 | ||
|
SERIAL PORT CONFIGURATION | ||||
|
Port 1 (CN1) |
Port 2 (CN2) |
SW1/1 |
SW1/2 | |
|
COM1 |
COM2 |
Off |
Off | |
|
COM1 |
Disabled |
On |
Off | |
|
COM2 |
COM3 |
Off |
On | |
|
COM3 |
COM4 |
On |
On | |
|
SERIAL PORT INTERRUPT SELECT | ||||||
|
Port 1 (CN1) |
Port 2 (CN2) |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 | |
|
IRQ4 |
IRQ3 |
On |
Off |
Off |
On | |
|
IRQ3 |
IRQ4 |
Off |
On |
On |
Off | |
|
Disabled |
Disabled |
Off |
Off |
Off |
Off | |
|
RS-422 DRIVER SELECT | |||
|
Port 1 (CN1) |
Port 2 (CN2) |
JP1 |
JP2 |
|
Controlled by RTS |
Controlled by RTS |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
Always on |
Always on |
Open |
Open |
|
Always Off |
Always Off |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
RS-422/232 SELECT | |||
|
Port 1 (CN1) |
Port 2 (CN2) |
JP4 |
JP3 |
|
RS-422 |
RS-422 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
RS-422 |
RS-232 |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
RS-232 |
RS-422 |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
RS-232 |
RS-232 |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
PORT DIAGNOSTIC MODE | ||||
|
Port 1 (CN1) |
Port 2 (CN2) |
JP7 |
JP8 | |
|
Normal operation |
Normal operation |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
|
IBM diagnostic test |
IBM diagnostic test |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |