DIAMOND FLOWER, INC.
MS-422 PLUS
|
Card Type |
Multi I/O |
|
Chipset/Controller |
NS16550AN |
|
I/O Options |
Serial ports (2) |
|
Maximum DRAM |
N/A |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
J2 |
Serial port 2 |
J1 |
|
SERIAL PORT CONFIGURATION | ||||
|
Port 1(J2) |
Port 2 (J1) |
SW2/1 |
SW2/2 | |
|
COM1 |
COM2 |
Off |
Off | |
|
COM1 |
Disabled |
On |
Off | |
|
COM2 |
COM3 |
Off |
On | |
|
COM3 |
COM4 |
On |
On | |
|
SERIAL PORT INTERRUPT SELECT | ||||||
|
Port 1(J2) |
Port 2 (J1) |
SW2/3 |
SW2/4 |
SW2/5 |
SW2/6 | |
|
IRQ4 |
IRQ3 |
On |
Off |
Off |
On | |
|
IRQ3 |
IRQ4 |
Off |
On |
On |
Off | |
|
Disabled |
Disabled |
Off |
Off |
Off |
Off | |
|
DMA SELECT | |||||||||
|
Port 1 (J1) |
Port 2 (J2) |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 |
|
Receiver |
Receiver |
On |
On |
Off |
Off |
On |
On |
Off |
Off |
|
Transmitter |
Transmitter |
Off |
Off |
On |
On |
Off |
Off |
On |
On |
|
DMA PORT AND CHANNEL CONFIGURATION | |||||
|
Port 1 (J1) |
Port 2 (J2) |
JP1 |
JP2 |
JP11 |
JP12 |
|
DMA 1 |
DMA 3 |
Closed |
Closed |
Open |
Open |
|
DMA 3 |
N/A |
Open |
Closed |
Closed |
Closed |
|
DMA 1 |
N/A |
Closed |
Open |
Open |
Open |
|
N/A |
DMA 1 |
Closed |
Open |
Closed |
Closed |
|
N/A |
DMA 3 |
Open |
Closed |
Open |
Open |
|
RS-422/RS-232 INTERFACE SELECT | ||||
|
Port 1 (J1) |
Port 2 (J2) |
JP8/A-J |
JP9/A-J | |
|
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 | |
|
RS-422 DRIVER SELECT | ||||
|
Port 1 (J1) |
Port 2 (J2) |
JP5 |
JP3 | |
|
Always on |
Always on |
Open |
Open | |
|
Always Off |
Always Off |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
|
Controlled by RTS |
Controlled by RTS |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
|
RS-232/RS-422 NORMAL SET SELECT | ||||
|
Port 1 (J1) |
Port 2 (J2) |
JP6 |
JP4 | |
|
RS-422 |
RS--422 |
Pins 2 & 3, 4 & 5 closed |
Pins 2 & 3, 4 & 5 closed | |
|
RS-422 |
RS-232 |
Pins 2 & 3, 4 & 5 closed |
Pins 1 & 2, 5 & 6 closed | |
|
RS-232 |
RS-422 |
Pins 1 & 2, 5 & 6 closed |
Pins 2 & 3, 4 & 5 closed | |
|
RS-232 |
RS-232 |
Pins 1 & 2, 5 & 6 closed |
Pins 1 & 2, 5 & 6 closed | |
|
CLOCK SPEED SELECT | ||
|
Speed |
JP7 | |
|
1.8432MHz |
Pins 1 & 2 closed | |
|
8.00MHz |
Pins 2 & 3 closed | |
|
SIGNAL GROUND CONFIGURATION | ||
|
Setting |
JP10 | |
|
Connected |
Closed | |
|
Isolated |
Open | |