BRAIN BOXES
QUAD RS232 (VER. 4.5)
Card Type | Serial controller |
Chip Set | Unidentified |
Maximum Onboard Memory | Unidentified |
I/O Options | Serial ports (4) |
Data Bus | 16-bit ISA |

CONNECTIONS | |
Function | Label |
37-pin serial port connector | CN1 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
| » | Factory configured - do not alter | JP10 | Closed |
| » | Factory configured - do not alter | JP11 | Open |
| » | Factory configured - do not alter | JP12 | Closed |
| » | Factory configured - do not alter | SW1/1 | On |
| » | Factory configured - do not alter | SW1/2 | On |
| » | Factory configured - do not alter | SW1/3 | On |
| » | Factory configured - do not alter | SW1/4 | Unidentified |
SERIAL PORT 1 ADDRESS SELECTION | ||||||
Setting | JP1/A | JP1/B | JP1/C | JP1/D | JP1/E | |
COM1 (3F8h) | Open | Open | Open | Closed | Open | |
| » | COM2 (2F8h) | Open | Open | Closed | Open | Open |
COM3 (3E8h) | Open | Closed | Open | Open | Open | |
COM4 (2E8h) | Closed | Open | Open | Open | Open | |
Bank | Open | Open | Open | Open | Closed | |
SERIAL PORT 2 ADDRESS SELECTION | ||||||
Setting | JP2/A | JP2/B | JP2/C | JP2/D | JP2/E | |
COM1 (3F8h) | Open | Open | Open | Closed | Open | |
COM2 (2F8h) | Open | Open | Closed | Open | Open | |
| » | COM3 (3E8h) | Open | Closed | Open | Open | Open |
COM4 (2E8h) | Closed | Open | Open | Open | Open | |
Bank | Open | Open | Open | Open | Closed | |
SERIAL PORT 3 ADDRESS SELECTION | ||||||
Setting | JP3/A | JP3/B | JP3/C | JP3/D | JP3/E | |
COM1 (3F8h) | Open | Open | Open | Closed | Open | |
COM2 (2F8h) | Open | Open | Closed | Open | Open | |
COM3 (3E8h) | Open | Closed | Open | Open | Open | |
| » | COM4 (2E8h) | Closed | Open | Open | Open | Open |
Bank | Open | Open | Open | Open | Closed | |
SERIAL PORT 4 ADDRESS SELECTION | ||||||
Setting | JP4/A | JP4/B | JP4/C | JP4/D | JP4/E | |
COM1 (3F8h) | Open | Open | Open | Closed | Open | |
COM2 (2F8h) | Open | Open | Closed | Open | Open | |
COM3 (3E8h) | Open | Closed | Open | Open | Open | |
COM4 (2E8h) | Closed | Open | Open | Open | Open | |
| » | Bank | Open | Open | Open | Open | Closed |
SERIAL PORT 1 INTERRUPT SELECTION | |||||||
IRQ | JP5/A | JP5/B | JP5/C | JP5/D | JP5/E | JP5/F | |
| » | Shared | Open | Open | Open | Open | Open | Open |
2 | Open | Open | Open | Open | Open | Open | |
3 | Open | Open | Open | Open | Open | Open | |
4 | Open | Open | Open | Open | Open | Open | |
5 | Open | Open | Open | Open | Open | Open | |
6 | Open | Open | Open | Open | Open | Open | |
7 | Open | Open | Open | Open | Open | Closed | |
10 | Open | Open | Open | Open | Closed | Open | |
11 | Open | Open | Open | Closed | Open | Open | |
12 | Open | Open | Closed | Open | Open | Open | |
14 | Open | Closed | Open | Open | Open | Open | |
15 | Closed | Open | Open | Open | Open | Open | |
SERIAL PORT 1 INTERRUPT SELECTION (CON’T) | |||||||
IRQ | JP5/G | JP5/H | JP5/I | JP5/J | JP5/K | JP5/L | |
| » | Shared | Open | Open | Open | Open | Open | Closed |
2 | Open | Open | Open | Open | Closed | Open | |
3 | Open | Open | Open | Closed | Open | Open | |
4 | Open | Open | Closed | Open | Open | Open | |
5 | Open | Closed | Open | Open | Open | Open | |
6 | Closed | Open | Open | Open | Open | Open | |
7 | Open | Open | Open | Open | Open | Open | |
10 | Open | Open | Open | Open | Open | Open | |
11 | Open | Open | Open | Open | Open | Open | |
12 | Open | Open | Open | Open | Open | Open | |
14 | Open | Open | Open | Open | Open | Open | |
15 | Open | Open | Open | Open | Open | Open | |
SERIAL PORT 2 INTERRUPT SELECTION | |||||||
IRQ | JP5/A | JP5/B | JP5/C | JP5/D | JP5/E | JP5/F | |
| » | Shared | Open | Open | Open | Open | Open | Open |
2 | Open | Open | Open | Open | Open | Open | |
3 | Open | Open | Open | Open | Open | Open | |
4 | Open | Open | Open | Open | Open | Open | |
5 | Open | Open | Open | Open | Open | Open | |
6 | Open | Open | Open | Open | Open | Open | |
7 | Open | Open | Open | Open | Open | Closed | |
10 | Open | Open | Open | Open | Closed | Open | |
11 | Open | Open | Open | Closed | Open | Open | |
12 | Open | Open | Closed | Open | Open | Open | |
14 | Open | Closed | Open | Open | Open | Open | |
15 | Closed | Open | Open | Open | Open | Open | |
SERIAL PORT 2 INTERRUPT SELECTION (CON’T) | |||||||
IRQ | JP5/G | JP5/H | JP5/I | JP5/J | JP5/K | JP5/L | |
| » | Shared | Open | Open | Open | Open | Open | Closed |
2 | Open | Open | Open | Open | Closed | Open | |
3 | Open | Open | Open | Closed | Open | Open | |
4 | Open | Open | Closed | Open | Open | Open | |
5 | Open | Closed | Open | Open | Open | Open | |
6 | Closed | Open | Open | Open | Open | Open | |
7 | Open | Open | Open | Open | Open | Open | |
10 | Open | Open | Open | Open | Open | Open | |
11 | Open | Open | Open | Open | Open | Open | |
12 | Open | Open | Open | Open | Open | Open | |
14 | Open | Open | Open | Open | Open | Open | |
15 | Open | Open | Open | Open | Open | Open | |
SERIAL PORT 3 INTERRUPT SELECTION | |||||||
IRQ | JP5/A | JP5/B | JP5/C | JP5/D | JP5/E | JP5/F | |
| » | Shared | Open | Open | Open | Open | Open | Open |
2 | Open | Open | Open | Open | Open | Open | |
3 | Open | Open | Open | Open | Open | Open | |
4 | Open | Open | Open | Open | Open | Open | |
5 | Open | Open | Open | Open | Open | Open | |
6 | Open | Open | Open | Open | Open | Open | |
7 | Open | Open | Open | Open | Open | Closed | |
10 | Open | Open | Open | Open | Closed | Open | |
11 | Open | Open | Open | Closed | Open | Open | |
12 | Open | Open | Closed | Open | Open | Open | |
14 | Open | Closed | Open | Open | Open | Open | |
15 | Closed | Open | Open | Open | Open | Open | |
SERIAL PORT 3 INTERRUPT SELECTION (CON’T) | |||||||
IRQ | JP5/G | JP5/H | JP5/I | JP5/J | JP5/K | JP5/L | |
| » | Shared | Open | Open | Open | Open | Open | Closed |
2 | Open | Open | Open | Open | Closed | Open | |
3 | Open | Open | Open | Closed | Open | Open | |
4 | Open | Open | Closed | Open | Open | Open | |
5 | Open | Closed | Open | Open | Open | Open | |
6 | Closed | Open | Open | Open | Open | Open | |
7 | Open | Open | Open | Open | Open | Open | |
10 | Open | Open | Open | Open | Open | Open | |
11 | Open | Open | Open | Open | Open | Open | |
12 | Open | Open | Open | Open | Open | Open | |
14 | Open | Open | Open | Open | Open | Open | |
15 | Open | Open | Open | Open | Open | Open | |
SERIAL PORT 4 INTERRUPT SELECTION | |||||||
IRQ | JP5/A | JP5/B | JP5/C | JP5/D | JP5/E | JP5/F | |
| » | Shared | Open | Open | Open | Open | Open | Open |
2 | Open | Open | Open | Open | Open | Open | |
3 | Open | Open | Open | Open | Open | Open | |
4 | Open | Open | Open | Open | Open | Open | |
5 | Open | Open | Open | Open | Open | Open | |
6 | Open | Open | Open | Open | Open | Open | |
7 | Open | Open | Open | Open | Open | Closed | |
10 | Open | Open | Open | Open | Closed | Open | |
11 | Open | Open | Open | Closed | Open | Open | |
12 | Open | Open | Closed | Open | Open | Open | |
14 | Open | Closed | Open | Open | Open | Open | |
15 | Closed | Open | Open | Open | Open | Open | |
SERIAL PORT 4 INTERRUPT SELECTION (CON’T) | |||||||
IRQ | JP5/G | JP5/H | JP5/I | JP5/J | JP5/K | JP5/L | |
| » | Shared | Open | Open | Open | Open | Open | Closed |
2 | Open | Open | Open | Open | Closed | Open | |
3 | Open | Open | Open | Closed | Open | Open | |
4 | Open | Open | Closed | Open | Open | Open | |
5 | Open | Closed | Open | Open | Open | Open | |
6 | Closed | Open | Open | Open | Open | Open | |
7 | Open | Open | Open | Open | Open | Open | |
10 | Open | Open | Open | Open | Open | Open | |
11 | Open | Open | Open | Open | Open | Open | |
12 | Open | Open | Open | Open | Open | Open | |
14 | Open | Open | Open | Open | Open | Open | |
15 | Open | Open | Open | Open | Open | Open | |
SHARED INTERRUPT STATUS REGISTER ADDRESS SELECTION | ||||||||||
Setting | SW3/1 | SW3/2 | SW3/3 | SW3/4 | SW3/5 | SW3/6 | SW3/7 | SW3/8 | SW2/8 | |
100h | Off | On | On | On | On | On | On | On | On | |
108h | Off | On | On | On | On | Off | On | On | On | |
110h | Off | On | On | On | Off | On | On | On | On | |
118h | Off | On | On | On | Off | Off | On | On | On | |
120h | Off | On | On | Off | On | On | On | On | On | |
| » | 3A0h | Off | Off | On | Off | On | On | On | On | Off |
3D0h | Off | Off | Off | On | Off | On | On | On | Off | |
3D8h | Off | Off | Off | On | Off | Off | On | On | Off | |
3E0h | Off | Off | Off | Off | On | On | On | On | Off | |
3E8h | Off | Off | Off | Off | On | Off | On | On | Off | |
3F0h | Off | Off | Off | Off | Off | On | On | On | Off | |
SERIAL PORT BANK ADDRESS SELECTION | |||||||||||
Port 1 | Port 2 | Port 3 | Port 4 | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 | SW2/7 | |
- | - | - | 100h | On | Off | On | On | On | Off | Off | |
- | - | 100h | 108h | On | Off | On | On | On | Off | On | |
- | 100h | 108h | 110h | On | Off | On | On | On | On | Off | |
100h | 108h | 110h | 118h | On | Off | On | On | On | On | On | |
108h | 110h | 118h | 120h | On | Off | On | On | Off | Off | Off | |
| » | 180h | 188h | 190h | 198h | On | Off | Off | On | On | On | On |
3C0 | 3C8 | 3D0 | 3D8 | Off | Off | Off | Off | On | On | On | |
3C8 | 3D0 | 3D8 | 3E0 | Off | Off | Off | Off | Off | Off | Off | |
3D0 | 3D8 | 3E0 | 3E8 | Off | Off | Off | Off | Off | Off | On | |
3D8 | 3E0 | 3E8 | 3F0 | Off | Off | Off | Off | Off | On | Off | |
3E0 | 3E8 | 3F0 | 3F8 | Off | Off | Off | Off | Off | On | On | |
Note: A total of 96 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/7 is the Least Significant Bit, and switch SW1/1 is the Most Significant Bit. Turn off the switches and add the values of the switches to obtain the correct memory address. (Off=1, On=0). Low address settings will leave some ports disabled. Ports may not be assigned addresses below 100h. | |||||||||||