STB SYSTEMS, INC.
4-COM
Card Type |
Serial |
Chip Set |
Unidentified |
I/O Options |
Serial ports (4) |
Data Bus |
16-bit ISA |
CONNECTIONS | |||
Function |
Label |
Function |
Label |
Serial port 1 |
P1 |
Serial port 3 |
P3 |
Serial port 2 |
P2 |
Serial port 4 |
P4 |
SERIAL PORT 1 IRQ JUMPER BLOCK SELECTION | |||
Setting |
J33 |
J34 | |
Jumper set 1 |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
Jumper set 2 |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
Jumper set 3 |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
Jumper set 4 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
SERIAL PORT 2 IRQ JUMPER BLOCK SELECTION | |||
Setting |
J35 |
J36 | |
Jumper set 1 |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
Jumper set 2 |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
Jumper set 3 |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
Jumper set 4 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
SERIAL PORT 3 IRQ JUMPER BLOCK SELECTION | |||
Setting |
J37 |
J38 | |
Jumper set 1 |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
Jumper set 2 |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
Jumper set 3 |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
Jumper set 4 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
SERIAL PORT 4 IRQ JUMPER BLOCK SELECTION | |||
Setting |
J39 |
J40 | |
Jumper set 1 |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
Jumper set 2 |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
Jumper set 3 |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
Jumper set 4 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
INTERRUPT JUMPER SET 1 | |||||
Setting |
J25 |
J26 |
J27 |
J28 | |
IR/FONT> |
Pins 1 & 2 closed |
Open |
Open |
Open | |
IRQ3 |
Pins 2 & 3 closed |
Open |
Open |
Open | |
IRQ4 |
Open |
Pins 1 & 2 closed |
Open |
Open | |
IRQ5 |
Open |
Pins 2 & 3 closed |
Open |
Open | |
IRQ10 |
Open |
Open |
Pins 1 & 2 closed |
Open | |
IRQ11 |
Open |
Open |
Pins 2 & 3 closed |
Open | |
IRQ12 |
Open |
Open |
Open |
Pins 1 & 2 closed | |
IRQ15 |
Open |
Open |
Open |
Pins 2 & 3 closed |
INTERRUPT JUMPER SET 2 | |||||
Setting |
J17 |
J18 |
J19 |
J20 | |
IR/FONT> |
Pins 1 & 2 closed |
Open |
Open |
Open | |
IRQ3 |
Pins 2 & 3 closed |
Open |
Open |
Open | |
IRQ4 |
Open |
Pins 1 & 2 closed |
Open |
Open | |
IRQ5 |
Open |
Pins 2 & 3 closed |
Open |
Open | |
IRQ10 |
Open |
Open |
Pins 1 & 2 closed |
Open | |
IRQ11 |
Open |
Open |
Pins 2 & 3 closed |
Open | |
IRQ12 |
Open |
Open |
Open |
Pins 1 & 2 closed | |
IRQ15 |
Open |
Open |
Open |
Pins 2 & 3 closed |
INTERRUPT JUMPER SET 3 | |||||
Setting |
J9 |
J10 |
J11 |
J12 | |
IR/FONT> |
Pins 1 & 2 closed |
Open |
Open |
Open | |
IRQ3 |
Pins 2 & 3 closed |
Open |
Open |
Open | |
IRQ4 |
Open |
Pins 1 & 2 closed |
Open |
Open | |
IRQ5 |
Open |
Pins 2 & 3 closed |
Open |
Open | |
IRQ10 |
Open |
Open |
Pins 1 & 2 closed |
Open | |
IRQ11 |
Open |
Open |
Pins 2 & 3 closed |
Open | |
IRQ12 |
Open |
Open |
Open |
Pins 1 & 2 closed | |
IRQ15 |
Open |
Open |
Open |
Pins 2 & 3 closed |
INTERRUPT JUMPER SET 4 | |||||
Setting |
J1 |
J2 |
J3 |
J4 | |
|
Pins 1 & 2 closed |
Open |
Open |
Open | |
IRQ3 |
Pins 2 & 3 closed |
Open |
Open |
Open | |
IRQ4 |
Open |
Pins 1 & 2 closed |
Open |
Open | |
IRQ5 |
Open |
Pins 2 & 3 closed |
Open |
Open | |
IRQ10 |
Open |
Open |
Pins 1 & 2 closed |
Open | |
IRQ11 |
Open |
Open |
Pins 2 & 3 closed |
Open | |
IRQ12 |
Open |
Open |
Open |
Pins 1 & 2 closed | |
IRQ15 |
Open |
Open |
Open |
Pins 2 & 3 closed |
SERIAL PORT 1 ADDRESS | |||||
Setting |
J29 |
J30 |
J31 |
J32 | |
COM1: (3F8h) |
Open |
Open |
Open |
Pins 1 & 2 closed | |
COM2: (2F8h) |
Open |
Open |
Pins 1 & 2 closed |
Open | |
COM3: (3E8h) |
Open |
Open |
Open |
Pins 2 & 3 closed | |
COM4: (2E8h) |
Open |
Open |
Pins 2 & 3 closed |
Open | |
1A8h |
Pins 2 & 3 closed |
Open |
Open |
Open | |
1E8h |
Open |
Pins 2 & 3 closed |
Open |
Open | |
1F8h |
Open |
Pins 1 & 2 closed |
Open |
Open | |
2A8h |
Pins 1 & 2 closed |
Open |
Open |
Open | |
Disabled |
Open |
Open |
Open |
Open |
SERIAL PORT 2 ADDRESS | |||||
Setting |
J21 |
J22 |
J23 |
J24 | |
COM1: (3F8h) |
Open |
Open |
Open |
Pins 1 & 2 closed | |
COM2: (2F8h) |
Open |
Open |
Pins 1 & 2 closed |
Open | |
COM3: (3E8h) |
Open |
Open |
Open |
Pins 2 & 3 closed | |
COM4: (2E8h) |
Open |
Open |
Pins 2 & 3 closed |
Open | |
1A8h |
Pins 2 & 3 closed |
Open |
Open |
Open | |
1E8h |
Open |
Pins 2 & 3 closed |
Open |
Open | |
1F8h |
Open |
Pins 1 & 2 closed |
Open |
Open | |
2A8h |
Pins 1 & 2 closed |
Open |
Open |
Open | |
Disabled |
Open |
Open |
Open |
Open |
SERIAL PORT 3 ADDRESS | |||||
Setting |
J13 |
J14 |
J15 |
J16 | |
COM1: (3F8h) |
Open |
Open |
Open |
Pins 1 & 2 closed | |
COM2: (2F8h) |
Open |
Open |
Pins 1 & 2 closed |
Open | |
COM3: (3E8h) |
Open |
Open |
Open |
Pins 2 & 3 closed | |
COM4: (2E8h) |
Open |
Open |
Pins 2 & 3 closed |
Open | |
1A8h |
Pins 2 & 3 closed |
Open |
Open |
Open | |
1E8h |
Open |
Pins 2 & 3 closed |
Open |
Open | |
1F8h |
Open |
Pins 1 & 2 closed |
Open |
Open | |
2A8h |
Pins 1 & 2 closed |
Open |
Open |
Open | |
Disabled |
Open |
Open |
Open |
Open |
SERIAL PORT 4 ADDRESS | |||||
Setting |
J5 |
J6 |
J7 |
J8 | |
COM1: (3F8h) |
Open |
Open |
Open |
Pins 1 & 2 closed | |
COM2: (2F8h) |
Open |
Open |
Pins 1 & 2 closed |
Open | |
COM3: (3E8h) |
Open |
Open |
Open |
Pins 2 & 3 closed | |
COM4: (2E8h) |
Open |
Open |
Pins 2 & 3 closed |
Open | |
1A8h |
Pins 2 & 3 closed |
Open |
Open |
Open | |
1E8h |
Open |
Pins 2 & 3 closed |
Open |
Open | |
1F8h |
Open |
Pins 1 & 2 closed |
Open |
Open | |
2A8h |
Pins 1 & 2 closed |
Open |
Open |
Open | |
Disabled |
Open |
Open |
Open |
Open |
MISCELLANEOUS TECHNICAL NOTE |
To set IRQs for the ports on this board, first set the jumper blocks that will set IRQs for each port. This is done by setting jumpers referenced in the "Serial Port IRQ Jumper Selection" tables. (Interrupts can be shared between two or more ports by setting both ports to the same interrupt jumper block. This will leave a jumper block unused.) Second, set the interrupts for that jumper block. This is done by setting jumpers referenced in the "Interrupt Jumper Set" tables. |