B & B ELECTRONICS 3PXCC1A, 3PXCC1B, 3PXCC2A, 3PXCC2B Card Type Serial Chipset 16550A (3PXCC1A, 3PXCC2A) 16750 (3PXCC1B, 3PXCC2B) I/O Options Serial ports (2 on 3PXCC2A, 3PXCC2B only) Data Bus 8/16 bit ISA [Image] CONNECTIONS Function Label Function Label RS-232, RS-422, or PORT1 RS-232, RS-422, or PORT2 RS-485 serial port 1 RS-485 serial port 2 Note:PORT2 has no function on models 3PXCC1A and 3PXCC1B. USER CONFIGURABLE SETTINGS Setting Label Position » RS-485 receiver disabled when JP1/C Pins 1 & 2 transmitting on port 1 closed RS-485 receiver always enabled on JP1/C Pins 2 & 3 port 1 closed RS-485 port 1 transmitter enabled on JP1/D Pins 2 & 3 high RTS only closed RS-485 port 1 transmitter enabled JP1/D Pins 1 & 2 whenever transmission is attempted closed RS-422/485 termination enabled on JP1/E Pins 2 & 3 port 1 closed RS-422/485 termination disabled on JP1/E Pins 1 & 2 port 1 closed » Serial port 1 clock speed normal JP1G Pins 2 & 3 closed Serial port 1 clock speed multiplied JP1G Pins 1 & 2 by 4 closed » RS-485 receiver disabled when JP2/C Pins 1 & 2 transmitting on port 2 closed RS-485 receiver always enabled on JP2/C Pins 2 & 3 port 2 closed RS-485 port 2 transmitter enabled on JP2/D Pins 2 & 3 high RTS only closed RS-485 port 2 transmitter enabled JP2/D Pins 1 & 2 whenever transmission is attempted closed RS-422/485 termination enabled on JP2/E Pins 2 & 3 port 2 closed RS-422/485 termination disabled on JP2/E Pins 1 & 2 port 2 closed » Serial port 2 clock speed normal JP2G Pins 2 & 3 closed Serial port 2 clock speed multiplied JP2G Pins 1 & 2 by 4 closed SERIAL PORT 1 CONFIGURATION Setting JP1/A JP1/B JP1/C JP1F/A JP1F/B JP1F/C JP1F/D RS-232 Pins N/A N/A Pins 2 Pins 2 Pins 2 Pins 2 1 & 2 & 3 & 3 & 3 & 3 RS-422 Pins Pins Pins Pins 1 Pins 1 Pins 1 Pins 1 2 & 3 2 & 3 2 & 3 & 2 & 2 & 2 & 2 RS-485 Pins Pins See Pins 1 Pins 1 Pins 1 Pins 1 2 & 3 1 & 2 note & 2 & 2 & 2 & 2 Note:For correct settings of JP1/C 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 JP2/A JP2/B JP2/C JP2F/A JP2F/B JP2F/C JP2F/D RS-232 Pins N/A N/A Pins 2 Pins 2 Pins 2 Pins 2 1 & 2 & 3 & 3 & 3 & 3 RS-422 Pins Pins Pins Pins 1 Pins 1 Pins 1 Pins 1 2 & 3 2 & 3 2 & 3 & 2 & 2 & 2 & 2 RS-485 Pins Pins See Pins 1 Pins 1 Pins 1 Pins 1 2 & 3 1 & 2 note & 2 & 2 & 2 & 2 Note:For correct settings of JP2/C for RS-485 mode, see its entry in the User Configurable Settings table. Pins designated are in the closed position. SERIAL PORT 1 INTERRUPT SELECTION Setting JP3/A JP3/B JP3/C JP3/D JP3/E JP3/F IR/FONT> Pins 1 Open Open Open Open Open & 2 IRQ3 Open Pins 1 Open Open Open Open & 2 » IRQ4 Open Open Pins 1 Open Open Open & 2 IRQ5 Open Open Open Pins 1 Open Open & 2 IRQ6 Open Open Open Open Pins 1 Open & 2 IRQ7 Open Open Open Open Open Pins 1 & 2 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 1 INTERRUPT SELECTION (CON’T) Setting JP3/G JP3/H JP3/I JP3/J JP3/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 Pins 1 & Open Open Open Open 2 IRQ11 Open Pins 1 & Open Open Open 2 IRQ12 Open Open Pins 1 & Open Open 2 IRQ14 Open Open Open Pins 1 & Open 2 IRQ15 Open Open Open Open Pins 1 & 2 Note:Pins designated are in the closed position. SERIAL PORT 2 INTERRUPT SELECTION Setting JP3/A JP3/B JP3/C JP3/D JP3/E JP3/F IR/FONT> Pins 2 Open Open Open Open Open & 3 IRQ3 Open Pins 2 Open Open Open Open & 3 » IRQ4 Open Open Pins 2 Open Open Open & 3 IRQ5 Open Open Open Pins 2 Open Open & 3 IRQ6 Open Open Open Open Pins 2 Open & 3 IRQ7 Open Open Open Open Open Pins 2 & 3 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 2 INTERRUPT SELECTION (CON’T) Setting JP3/G JP3/H JP3/I JP3/J JP3/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 Pins 2 & Open Open Open Open 3 IRQ11 Open Pins 2 & Open Open Open 3 IRQ12 Open Open Pins 2 & Open Open 3 IRQ14 Open Open Open Pins 2 & Open 3 IRQ15 Open Open Open Open Pins 2 & 3 Note:Pins designated are in the closed position. SERIAL PORT 1 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) SERIAL PORT 2 ADDRESS SELECTION Setting SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 SW2/6 SW2/7 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. SW2/7 is the Most Significant Bit and switch SW2/1 is the Least Significant Bit. The switches have the following decimal values: SW2/7=512, SW2/6=256, SW2/5=128, SW2/4=64, SW2/3=32, SW2/2=16, SW2/1=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)