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3PXCC4A

B & B ELECTRONICS

3PXCC4A

Card Type

Serial

Chipset

16550A

I/O Options

Serial ports (4)

Data Bus

8/16 bit ISA

CONNECTIONS

Function

Label

Function

Label

RS-232, RS-422, or RS-485 serial port 1

P1

RS-232, RS-422, or RS-485 serial port 3

P3

RS-232, RS-422, or RS-485 serial port 2

P2

RS-232, RS-422, or RS-485 serial port 4

P4

USER CONFIGURABLE SETTINGS

Setting

Label

Position

»

Serial port 1 uses normal interrupt set by JP1

JP5/A

Pins 1 & 2 closed

 

Serial port 1 uses shared interrupt set by JP1

JP5/A

Pins 2 & 3 closed

»

Serial port 2 uses normal interrupt set by JP2

JP5/B

Pins 1 & 2 closed

 

Serial port 2 uses shared interrupt set by JP1

JP5/B

Pins 2 & 3 closed

»

Serial port 3 uses normal interrupt set by JP3

JP5/C

Pins 1 & 2 closed

 

Serial port 3 uses shared interrupt set by JP1

JP5/C

Pins 2 & 3 closed

»

Serial port 4 uses normal interrupt set by JP4

JP5/D

Pins 1 & 2 closed

 

Serial port 4 uses shared interrupt set by JP1

JP5/D

Pins 2 & 3 closed

»

Interrupt sharing disabled

JP6

Pins 1 & 2 closed

 

Interrupt sharing enabled

JP6

Pins 2 & 3 closed

»

RS-485 receiver disabled when transmitting on port 1

JP8/B

Pins 1 & 2 closed

 

RS-485 receiver always enabled on port 1

JP8/B

Pins 2 & 3 closed

 

RS-422/485 termination enabled on port 1

JP8/D

Pins 1 & 2 closed

 

RS-422/485 termination disabled on port 1

JP8/D

Pins 2 & 3 closed

»

RS-485 receiver disabled when transmitting on port 2

JP10/B

Pins 1 & 2 closed

 

RS-485 receiver always enabled on port 2

JP10/B

Pins 2 & 3 closed

 

RS-422/485 termination enabled on port 2

JP10/D

Pins 1 & 2 closed

 

RS-422/485 termination disabled on port 2

JP10/D

Pins 2 & 3 closed

»

RS-485 receiver disabled when transmitting on port 4

JP12/B

Pins 1 & 2 closed

 

RS-485 receiver always enabled on port 4

JP12/B

Pins 2 & 3 closed

USER CONFIGURABLE SETTINGS (CON’T)

Setting

Label

Position

 

RS-422/485 termination enabled on port 4

JP12/D

Pins 1 & 2 closed

 

RS-422/485 termination disabled on port 4

JP12/D

Pins 2 & 3 closed

»

RS-485 receiver disabled when transmitting on port 3

JP14/B

Pins 1 & 2 closed

 

RS-485 receiver always enabled on port 3

JP14/B

Pins 2 & 3 closed

 

RS-422/485 termination enabled on port 3

JP14/D

Pins 1 & 2 closed

 

RS-422/485 termination disabled on port 3

JP14/D

Pins 2 & 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 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

N/A

N/A

Pins 1 & 2

RS-422

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

RS-485

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

See note

Pins 2 & 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 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

N/A

N/A

Pins 1 & 2

RS-422

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

RS-485

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

See note

Pins 2 & 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 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

N/A

N/A

Pins 1 & 2

RS-422

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

RS-485

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

See note

Pins 2 & 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 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

N/A

N/A

Pins 1 & 2

RS-422

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

RS-485

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

See note

Pins 2 & 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 (COM4:)

Off

On

Off

Off

Off

On

Off

2F8h (COM2:)

Off

Off

Off

Off

Off

On

Off

3D8h

Off

Off

On

Off

Off

Off

Off

3E0h

On

On

Off

Off

Off

Off

Off

3E8h (COM3:)

Off

On

Off

Off

Off

Off

Off

3F0h

On

Off

Off

Off

Off

Off

Off

3F8h (COM1:)

Off

Off

Off

Off

Off

Off

Off

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.