B & B ELECTRONICS 3PXCC4A Card Type Serial Chipset 16550A I/O Options Serial ports (4) Data Bus 8/16 bit ISA [Image] 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 interrupt JP5/A Pins 1 & 2 set by JP1 closed Serial port 1 uses shared interrupt JP5/A Pins 2 & 3 set by JP1 closed » Serial port 2 uses normal interrupt JP5/B Pins 1 & 2 set by JP2 closed Serial port 2 uses shared interrupt JP5/B Pins 2 & 3 set by JP1 closed » Serial port 3 uses normal interrupt JP5/C Pins 1 & 2 set by JP3 closed Serial port 3 uses shared interrupt JP5/C Pins 2 & 3 set by JP1 closed » Serial port 4 uses normal interrupt JP5/D Pins 1 & 2 set by JP4 closed Serial port 4 uses shared interrupt JP5/D Pins 2 & 3 set by JP1 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 & 2 transmitting on port 1 closed RS-485 receiver always enabled on JP8/B Pins 2 & 3 port 1 closed RS-422/485 termination enabled on JP8/D Pins 1 & 2 port 1 closed RS-422/485 termination disabled on JP8/D Pins 2 & 3 port 1 closed » RS-485 receiver disabled when JP10/B Pins 1 & 2 transmitting on port 2 closed RS-485 receiver always enabled on JP10/B Pins 2 & 3 port 2 closed RS-422/485 termination enabled on JP10/D Pins 1 & 2 port 2 closed RS-422/485 termination disabled on JP10/D Pins 2 & 3 port 2 closed » RS-485 receiver disabled when JP12/B Pins 1 & 2 transmitting on port 4 closed RS-485 receiver always enabled on JP12/B Pins 2 & 3 port 4 closed USER CONFIGURABLE SETTINGS (CON’T) Setting Label Position RS-422/485 termination enabled on JP12/D Pins 1 & 2 port 4 closed RS-422/485 termination disabled on JP12/D Pins 2 & 3 port 4 closed » RS-485 receiver disabled when JP14/B Pins 1 & 2 transmitting on port 3 closed RS-485 receiver always enabled on JP14/B Pins 2 & 3 port 3 closed RS-422/485 termination enabled on JP14/D Pins 1 & 2 port 3 closed RS-422/485 termination disabled on JP14/D Pins 2 & 3 port 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 Pins Pins Pins N/A N/A Pins 1 2 & 3 2 & 3 2 & 3 2 & 3 & 2 RS-422 Pins Pins Pins Pins Pins 2 Pins 2 Pins 2 1 & 2 1 & 2 1 & 2 1 & 2 & 3 & 3 & 3 RS-485 Pins Pins Pins Pins Pins 1 See Pins 2 1 & 2 1 & 2 1 & 2 1 & 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.