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# B & B ELECTRONICS
3PXCC4A
Card Type Serial
Chipset 16550A
I/O Options Serial ports (4)
Data Bus 8/16 bit ISA
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-----------------------+-------+--------------------+-------|
| RS-232, RS-422, or | P1 | RS-232, RS-422, or | P3 |
| RS-485 serial port 1 | | RS-485 serial port | |
| | | 3 | |
|-----------------------+-------+--------------------+-------|
| RS-232, RS-422, or | P2 | RS-232, RS-422, or | P4 |
| RS-485 serial port 2 | | RS-485 serial port | |
| | | 4 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|---------------------------------------+--------+-----------|
| » | Serial port 1 uses normal | JP5/A | Pins 1 & |
| | interrupt set by JP1 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | Serial port 1 uses shared | JP5/A | Pins 2 & |
| | interrupt set by JP1 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| » | Serial port 2 uses normal | JP5/B | Pins 1 & |
| | interrupt set by JP2 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | Serial port 2 uses shared | JP5/B | Pins 2 & |
| | interrupt set by JP1 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| » | Serial port 3 uses normal | JP5/C | Pins 1 & |
| | interrupt set by JP3 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | Serial port 3 uses shared | JP5/C | Pins 2 & |
| | interrupt set by JP1 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| » | Serial port 4 uses normal | JP5/D | Pins 1 & |
| | interrupt set by JP4 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | Serial port 4 uses shared | JP5/D | Pins 2 & |
| | interrupt set by JP1 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| » | Interrupt sharing disabled | JP6 | Pins 1 & |
| | | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | Interrupt sharing enabled | JP6 | Pins 2 & |
| | | | 3 closed |
|---+-----------------------------------+--------+-----------|
| » | RS-485 receiver disabled when | JP8/B | Pins 1 & |
| | transmitting on port 1 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | RS-485 receiver always enabled on | JP8/B | Pins 2 & |
| | port 1 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| | RS-422/485 termination enabled on | JP8/D | Pins 1 & |
| | port 1 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | RS-422/485 termination disabled | JP8/D | Pins 2 & |
| | on port 1 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| » | RS-485 receiver disabled when | JP10/B | Pins 1 & |
| | transmitting on port 2 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | RS-485 receiver always enabled on | JP10/B | Pins 2 & |
| | port 2 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| | RS-422/485 termination enabled on | JP10/D | Pins 1 & |
| | port 2 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | RS-422/485 termination disabled | JP10/D | Pins 2 & |
| | on port 2 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| » | RS-485 receiver disabled when | JP12/B | Pins 1 & |
| | transmitting on port 4 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | RS-485 receiver always enabled on | JP12/B | Pins 2 & |
| | port 4 | | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS (CON’T) |
|------------------------------------------------------------|
| Setting | Label | Position |
|---------------------------------------+--------+-----------|
| | RS-422/485 termination enabled on | JP12/D | Pins 1 & |
| | port 4 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | RS-422/485 termination disabled | JP12/D | Pins 2 & |
| | on port 4 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| » | RS-485 receiver disabled when | JP14/B | Pins 1 & |
| | transmitting on port 3 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | RS-485 receiver always enabled on | JP14/B | Pins 2 & |
| | port 3 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| | RS-422/485 termination enabled on | JP14/D | Pins 1 & |
| | port 3 | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | RS-422/485 termination disabled | JP14/D | Pins 2 & |
| | on port 3 | | 3 closed |
|---+-----------------------------------+--------+-----------|
| | Status register enabled | JP15 | Pins 1 & |
| | | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | Status register disabled | JP15 | Pins 2 & |
| | | | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP7/A | JP7/B |JP7/C |JP7/D |JP8/A |JP8/B |JP8/C |
|---------+-------+-------+------+------+------+------+------|
| RS-232 |Pins 2 |Pins 2 |Pins 2|Pins 2| N/A | N/A |Pins 1|
| | & 3 | & 3 | & 3 | & 3 | | | & 2 |
|---------+-------+-------+------+------+------+------+------|
| RS-422 |Pins 1 |Pins 1 |Pins 1|Pins 1|Pins 2|Pins 2|Pins 2|
| | & 2 | & 2 | & 2 | & 2 | & 3 | & 3 | & 3 |
|---------+-------+-------+------+------+------+------+------|
| RS-485 |Pins 1 |Pins 1 |Pins 1|Pins 1|Pins 1| See |Pins 2|
| | & 2 | & 2 | & 2 | & 2 | & 2 | note | & 3 |
|------------------------------------------------------------|
| Note:For correct settings of JP8/B for RS-485 mode, see|
| its entry in the User Configurable Settings table. |
| |
| Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 CONFIGURATION |
|------------------------------------------------------------|
|Setting |JP9/A |JP9/B |JP9/C |JP9/D |JP10/A |JP10/B |JP10/C |
|--------+------+------+------+------+-------+-------+-------|
| RS-232 |Pins 2|Pins 2|Pins 2|Pins 2| N/A | N/A |Pins 1 |
| | & 3 | & 3 | & 3 | & 3 | | | & 2 |
|--------+------+------+------+------+-------+-------+-------|
| RS-422 |Pins 1|Pins 1|Pins 1|Pins 1|Pins 2 |Pins 2 |Pins 2 |
| | & 2 | & 2 | & 2 | & 2 | & 3 | & 3 | & 3 |
|--------+------+------+------+------+-------+-------+-------|
| RS-485 |Pins 1|Pins 1|Pins 1|Pins 1|Pins 1 | See |Pins 2 |
| | & 2 | & 2 | & 2 | & 2 | & 2 | note | & 3 |
|------------------------------------------------------------|
| Note:For correct settings of JP10/B for RS-485 mode, |
| see its entry in the User Configurable Settings table. |
| |
| Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 3 CONFIGURATION |
|------------------------------------------------------------|
|Setting |JP13/A |JP13/B |JP13/C |JP13/D|JP14/A|JP14/B|JP14/C|
|--------+-------+-------+-------+------+------+------+------|
| RS-232 |Pins 2 |Pins 2 |Pins 2 |Pins 2| N/A | N/A |Pins 1|
| | & 3 | & 3 | & 3 | & 3 | | | & 2 |
|--------+-------+-------+-------+------+------+------+------|
| RS-422 |Pins 1 |Pins 1 |Pins 1 |Pins 1|Pins 2|Pins 2|Pins 2|
| | & 2 | & 2 | & 2 | & 2 | & 3 | & 3 | & 3 |
|--------+-------+-------+-------+------+------+------+------|
| RS-485 |Pins 1 |Pins 1 |Pins 1 |Pins 1|Pins 1| See |Pins 2|
| | & 2 | & 2 | & 2 | & 2 | & 2 | note | & 3 |
|------------------------------------------------------------|
| Note:For correct settings of JP14/B for RS-485 mode, |
| see its entry in the User Configurable Settings table. |
| |
| Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 4 CONFIGURATION |
|------------------------------------------------------------|
|Setting |JP11/A |JP11/B |JP11/C |JP11/D|JP12/A|JP12/B|JP12/C|
|--------+-------+-------+-------+------+------+------+------|
| RS-232 |Pins 2 |Pins 2 |Pins 2 |Pins 2| N/A | N/A |Pins 1|
| | & 3 | & 3 | & 3 | & 3 | | | & 2 |
|--------+-------+-------+-------+------+------+------+------|
| RS-422 |Pins 1 |Pins 1 |Pins 1 |Pins 1|Pins 2|Pins 2|Pins 2|
| | & 2 | & 2 | & 2 | & 2 | & 3 | & 3 | & 3 |
|--------+-------+-------+-------+------+------+------+------|
| RS-485 |Pins 1 |Pins 1 |Pins 1 |Pins 1|Pins 1| See |Pins 2|
| | & 2 | & 2 | & 2 | & 2 | & 2 | note | & 3 |
|------------------------------------------------------------|
| Note:For correct settings of JP12/B for RS-485 mode, |
| see its entry in the User Configurable Settings table. |
| |
| Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT CLOCK MULTIPLIER |
|------------------------------------------------------------|
| Setting | JP16B | JP17B |
|------------------------+-----------------+-----------------|
| » | Normal (x1) | Closed | Open |
|---+--------------------+-----------------+-----------------|
| | Fast (x4) | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
|Setting | JP1/A | JP1/B | JP1/C | JP1/D | JP1/E | JP1/F |
|--------+--------+--------+--------+--------+-------+-------|
|IR/FONT>| Closed | Open | Open | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ3 | Open | Closed | Open | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ4 | Open | Open | Closed | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ5 | Open | Open | Open | Closed | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ6 | Open | Open | Open | Open |Closed | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ7 | Open | Open | Open | Open | Open |Closed |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ10 | Open | Open | Open | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ11 | Open | Open | Open | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ12 | Open | Open | Open | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ14 | Open | Open | Open | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ15 | Open | Open | Open | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECTION (CON’T) |
|------------------------------------------------------------|
| Setting | JP1/G | JP1/H | JP1/I | JP1/J | JP1/K |
|----------+---------+---------+---------+---------+---------|
| IR/FONT> | Open | Open | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ3 | Open | Open | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ4 | Open | Open | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ5 | Open | Open | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ6 | Open | Open | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ7 | Open | Open | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ10 | Closed | Open | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ11 | Open | Closed | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ12 | Open | Open | Closed | Open | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ14 | Open | Open | Open | Closed | Open |
|----------+---------+---------+---------+---------+---------|
| IRQ15 | Open | Open | Open | Open | Closed |
|------------------------------------------------------------|
| Note:JP1 sets the interrupt for port 1. The settings |
| for JP2 through JP4 are identical and set the |
| interrupts for ports 2 through 4, respectively. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | SW1/1 | SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |
|---------+-------+-------+------+------+------+------+------|
| 000h | On | On | On | On | On | On | On |
|---------+-------+-------+------+------+------+------+------|
| 008h | Off | On | On | On | On | On | On |
|---------+-------+-------+------+------+------+------+------|
| 010h | On | Off | On | On | On | On | On |
|---------+-------+-------+------+------+------+------+------|
| 018h | Off | Off | On | On | On | On | On |
|---------+-------+-------+------+------+------+------+------|
| 020h | On | On | Off | On | On | On | On |
|---------+-------+-------+------+------+------+------+------|
| 2E8h | Off | On | Off | Off | Off | On | Off |
| (COM4:) | | | | | | | |
|---------+-------+-------+------+------+------+------+------|
| 2F8h | Off | Off | Off | Off | Off | On | Off |
| (COM2:) | | | | | | | |
|---------+-------+-------+------+------+------+------+------|
| 3D8h | Off | Off | On | Off | Off | Off | Off |
|---------+-------+-------+------+------+------+------+------|
| 3E0h | On | On | Off | Off | Off | Off | Off |
|---------+-------+-------+------+------+------+------+------|
| 3E8h | Off | On | Off | Off | Off | Off | Off |
| (COM3:) | | | | | | | |
|---------+-------+-------+------+------+------+------+------|
| 3F0h | On | Off | Off | Off | Off | Off | Off |
|---------+-------+-------+------+------+------+------+------|
| 3F8h | Off | Off | Off | Off | Off | Off | Off |
| (COM1:) | | | | | | | |
|------------------------------------------------------------|
| Note: A total of 128 base address settings are |
| available. The switches are a binary representation of |
| the decimal memory addresses. SW1/7 is the Most |
| Significant Bit and switch SW1/1 is the Least |
| Significant Bit. The switches have the following |
| decimal values: SW1/7=512, SW1/6=256, SW1/5=128, |
| SW1/4=64, SW1/3=32, SW1/2=16, SW1/1=8. Turn off the |
| switches and add the values of the switches that are |
| off to obtain the correct memory address. (Off=1, On=0)|
| |
| SW1 sets the address for port 1. The settings for SW2 |
| through SW4 are identical and set the addresses for |
| ports 2 through 4, respectively. |
+------------------------------------------------------------+