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# B & B ELECTRONICS
3PXOCC2A, 3PXOCC2B
Card Type Serial card
Chip Set Unidentified
Data Bus 16-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| 9-pin serial port 1 | J1 | 9-pin serial port 2 | J2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------+-------+-------------------------|
| IRQ share select normal | JP4 | Pins 1 & 3, 2 & 4 |
| | | closed |
|--------------------------+-------+-------------------------|
| IRQ share select sharing | JP4 | Pins 3 & 5, 4 & 6 |
| | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT SELECTION (RS-232 & RS-422) |
|------------------------------------------------------------|
| Setting | JP1C | JP2C |
|------------+------------------------+----------------------|
| RS-232 | 1 & 2, 4 & 5, 7 & 8, | 1 & 2, 4 & 5, 7 & 8, |
| | 10 & 11 | 10 & 11 |
|------------+------------------------+----------------------|
| RS-422/485 | 2 & 3, 5 & 6, 8 & 9, | 2 & 3, 5 & 6, 8 & 9, |
| | 11 & 12 | 11 & 12 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT SELECTION (RS-422 & RS-485) |
|------------------------------------------------------------|
| Setting | JP1A | JP1B | JP2A | JP2B |
|---------+------------+------------+------------+-----------|
| RS-422 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| RS-485 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & |
| | closed | closed | closed | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RS-485 SELECTION |
|------------------------------------------------------------|
| Setting | JP5 | JP6 |
|--------------------+-------------------+-------------------|
| Send Data (SD) | Pins 1 & 2 closed | Pins 1 & 2 closed |
|--------------------+-------------------+-------------------|
| Request to Send | Pins 2 & 3 closed | Pins 2 & 3 closed |
| (RTS) | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTE |
|------------------------------------------------------------|
| JP1C, JP1A, JP1B & JP5 control serial port 1 and JP2C, |
| JP2A, JP2B & JP6 control serial port 2. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 ADDRESS SELECTION |
|------------------------------------------------------------|
|Address | SW1/1 | SW1/2 | SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |
|--------+-------+-------+-------+------+------+------+------|
| 3F8 | Off | Off | Off | Off | Off | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 2F8 | Off | Off | Off | Off | Off | On | Off |
|--------+-------+-------+-------+------+------+------+------|
| 3E8 | Off | On | Off | Off | Off | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 2E8 | Off | On | Off | Off | Off | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 ADDRESS SELECTION |
|------------------------------------------------------------|
|Address | SW2/1 | SW2/2 | SW2/3 |SW2/4 |SW2/5 |SW2/6 |SW2/7 |
|--------+-------+-------+-------+------+------+------+------|
| 3F8 | Off | Off | Off | Off | Off | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 2F8 | Off | Off | Off | Off | Off | On | Off |
|--------+-------+-------+-------+------+------+------+------|
| 3E8 | Off | On | Off | Off | Off | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 2E8 | Off | On | Off | Off | Off | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | Port 1 (J1) | Port 2 (J2) |
|--------+-------------------------+-------------------------|
| IRQ2 | JP3/pins 31 & 32 closed | JP3/pins 32 & 33 closed |
|--------+-------------------------+-------------------------|
| IRQ3 | JP3/pins 28 & 29 closed | JP3/pins 29 & 30 closed |
|--------+-------------------------+-------------------------|
| IRQ4 | JP3/pins 25 & 26 closed | JP3/pins 26 & 27 closed |
|--------+-------------------------+-------------------------|
| IRQ5 | JP3/pins 22 & 23 closed | JP3/pins 23 & 24 closed |
|--------+-------------------------+-------------------------|
| IRQ6 | JP3/pins 19 & 20 closed | JP3/pins 20 & 21 closed |
|--------+-------------------------+-------------------------|
| IRQ7 | JP3/pins 16 & 17 closed | JP3/pins 17 & 18 closed |
|--------+-------------------------+-------------------------|
| IRQ10 | JP3/pins 13 & 14 closed | JP3/pins 14 & 15 closed |
|--------+-------------------------+-------------------------|
| IRQ11 | JP3/pins 10 & 11 closed | JP3/pins 11 & 12 closed |
|--------+-------------------------+-------------------------|
| IRQ12 | JP3/pins 7 & 8 closed | JP3/pins 8 & 9 closed |
|--------+-------------------------+-------------------------|
| IRQ14 | JP3/pins 4 & 5 closed | JP3/pins 5 & 6 closed |
|--------+-------------------------+-------------------------|
| IRQ15 | JP3/pins 1 & 2 closed | JP3/pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA RATE SELECTION |
|------------------------------------------------------------|
| Setting | JP7 | JP8 |
|------------------+--------------------+--------------------|
| High | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| Low | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+