B&B Electronics RS-232/422/485 Serial Card CE 3PXCC4A User Manual
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B&B Electronics RS-232/422/485 Serial Card CE 3PXCC4A User Manual

Four port, any address, any irq rs-232/422/485 serial card
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This manual covers the following B&B Electronics' model serial
cards:
Four Port, Any Address, Any IRQ
RS-232/422/485 Serial Card
Each of these models is an RS-232 serial card and uses the same printed
circuit board. The "1" and "2" suffix designates the number of ports on the card. The
model number of the card is printed on a sticker on the board.
This product designed and manufactured in Ottawa, Illinois USA
707 Dayton Road -- P.O. Box 1040 -- Ottawa, IL 61350 USA
Phone (815) 433-5100 -- General Fax (815) 433-5105
Sales e-mail: orders@bb-elec.com -- Fax (815) 433-5109
Technical Support e-mail: support@bb-elec.com -- Fax (815) 433-5104
Westlink Commercial Park, Oranmore, Co. Galway, Ireland
Phone +353 91-792444 -- Fax +353 91-792445
Technical Support e-mail: support@bb-europe.com
Manual Document# 3PXCC4A3001
Model 3PXCC4A
Documentation Number 3PXCC4A3001
of domestic and imported parts by
International Headquarters
B&B Electronics Mfg. Co. Inc.
Home Page: www.bb-elec.com
European Headquarters
B&B Electronics Ltd.
Home Page: www.bb-europe.com
Sales e-mail: orders@bb-europe.com
B&B Electronics -- Revised August 2001
CE
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Summary of Contents for B&B Electronics RS-232/422/485 Serial Card CE 3PXCC4A

  • Page 1 This manual covers the following B&B Electronics’ model serial cards: Four Port, Any Address, Any IRQ RS-232/422/485 Serial Card Documentation Number 3PXCC4A3001 Each of these models is an RS-232 serial card and uses the same printed circuit board. The "1" and "2" suffix designates the number of ports on the card. The model number of the card is printed on a sticker on the board.

  • Page 2: Table Of Contents

    Table of Contents Chapter 1: Introduction and General Information ...1 Features ...1 Specifications ...2 Chapter 2: Quick Installation Guide ...3 Chapter 3: Windows Installation ...5 Checking Device Manager for Available Address/IRQ’s (Windows 95/98) ...5 Adding Serial Port(s) in Windows 95/98 Changing COM Port Resources in Windows 95/98 Checking Windows NT Diagnostics for Available Address/IRQ’s (Windows NT 4.0) ...16...

  • Page 3: Chapter 1: Introduction And General Information

    Chapter 1: Introduction and General Information The B&B Electronics’ 3PXCC4A series serial interface cards are designed for the IBM PC, XT, AT and compatibles. Ports are configured as a standard DTE device, and connections are made on RJ45 style connectors. The 3PXCC4A cards offer exceptional setup flexibility.

  • Page 4: Specifications

    Specifications Bus: IBM PC ISA Bus Slot: Requires 1 full length slot for complete IRQ selectability. When installed in a short slot, IRQ’s 10-15 will not be available. Dimensions: 7.1 x 4.3 in (18 x 10.9cm) I/O connection: RJ45 (8 conductor) connectors for all four ports Character length: 5, 6, 7, or 8 bits Parity: Even, odd or none Stop bits: 1, 1.5, or 2...

  • Page 5: Chapter 2: Quick Installation Guide

    Chapter 2: Quick Installation Guide The following steps will help you install the Model 3PXCC4A Serial Card. Please follow (step-by-step) the following numbered instructions and refer to any corresponding chapters for more details. CAUTION: Electrostatic Sensitive Device. Use ESD precautions for safe handling. Before removing the card from the anti-static protective packaging.
  • Page 6 4. Assign Address and IRQ – The address and IRQ are set in the operating system that you are using. This is the final step of adding new hardware. See Chapter 4 for more details. 5. Set up the address (with dipswitches) and IRQ (jumpers) on the serial card to reflect unused addresses and IRQ’s that you want to use.

  • Page 7: Chapter 3: Windows Installation

    Chapter 3: Windows Installation Checking Device Manager for Available Address/IRQ’s (Windows 95/98) Click on Start / Settings / Control Panel and double-click on System Properties. Left-click on Device Manager. Double-click on Computer. Manual Document# 3PXCC4A3001...
  • Page 8 Left-click on Interrupt Request. Find a free IRQ in the displayed list. Any number that is seen on the left hand side of this screen is an IRQ that is currently being used. The object is to find a number of IRQ(s) that are not listed and set your port(s) using those IRQ’s.
  • Page 9 Scroll through the list, check 03F8H, 02F8H, 03E8H, 02E8H. If one of these is available, use it. If not, check alternates. Find a free address in the list. Most desktop PC’s have a COM1 and possibly a COM2 already on their system which will be seen in the list.

  • Page 10: Adding Serial Port(S) In Windows 95/98

    Adding Serial Port(s) in Windows 95/98 Go to Start Menu / Settings / Control Panel. Run the Windows Add New Hardware utility found in the control panel. Click Next. Manual Document# 3PXCC4A3001...
  • Page 11 Click Next. Select Yes/No for the device in the list. Click Next. Manual Document# 3PXCC4A3001...
  • Page 12 Select No (you do not want Windows to search for your new hardware). Click Next. Select Ports (COM & LPT). Click Next. Manual Document# 3PXCC4A3001...
  • Page 13 Select (Standard port types) and Communication Port. Click Next. Manual Document# 3PXCC4A3001...
  • Page 14 The next screen will show the address and interrupt request of the port. These may not match your configuration. For now, simply click Next. Windows may ask for the Windows 95/98 disk/CD to be inserted. Finally, click Finish. Manual Document# 3PXCC4A3001...

  • Page 15: Changing Com Port Resources In Windows 95/98

    Changing COM Port Resources in Windows 95/98 Click Start / Settings / Control Panel and double-click on System Properties. Click on Device Manager (make sure “View devices by type” is enabled. Double-click on Ports (COM & LPT). Double-click on the new port that has been added. Manual Document# 3PXCC4A3001...
  • Page 16 Click Resources. Click off (check mark out of box) Use Automatic Settings. Manual Document# 3PXCC4A3001...
  • Page 17 Click off (check mark out of box) Use Automatic Settings. Select Basic Configuration 0007 (or last one). Select Input / Output Range. Click Change Setting. Change Address to match the free address settings you found earlier. Click OK. Select Interrupt Request. Click Change Settings.

  • Page 18: Checking Windows Nt Diagnostics For Available Address/Irq's (Windows Nt 4.0)

    Checking Windows NT Diagnostics for Available Address/IRQ’s (Windows NT 4.0) Click on Start / Programs / Administrative Tools / Windows NT Diagnostics. Left-click on Resources. Find a free IRQ in the following list. Any number that is seen on the left hand side of this screen is an IRQ that is currently being used.
  • Page 19 Left-click on I/O Port in Resources. Tab to view currently used addresses. Scroll through the list, check 03F8H, 02F8H, 03E8H, 02E8H. If one of these is available, use it. If not, check alternates. Find a free address in the list. Most desktop PC’s have a COM1 and possibly a COM2 already on their system, which will be seen in the list.
  • Page 20 Adding Serial Port(s) in Windows NT 4.0 Go to Start Menu / Settings / Control Panel. Double-click on Ports. Click Add. Choose COM Port Number, Base I/O Address, and IRQ that you want to use for the new Serial Port(s) being added. After clicking OK, you will see a screen –...

  • Page 21: Checking Windows 2000 For Available Address/Irq's

    Checking Windows 2000 for Available Address/IRQ’s Click on Start / Settings / Control Panel. Double-click on System. Manual Document# 3PXCC4A3001...
  • Page 22 Click on Hardware. Manual Document# 3PXCC4A3001...
  • Page 23 Click on Device Manager. Manual Document# 3PXCC4A3001...
  • Page 24 Click on View (top of screen). Click on Resources by type. Double-click on Input/Output. Find an unused address to set your B&B Electronics serial card to. Scroll through the list, check 03F8H, 02F8H, 03E8H, 02E8H. If one of these is available, use it. If not, check alternates. Find a free address in the list.
  • Page 25 Double-click on Interrupt Request (IRQ). Here you will need to find an unused IRQ to set your B&B Electronics serial card to. Manual Document# 3PXCC4A3001...

  • Page 26: Adding Serial Port(S) In Windows 2000

    Adding Serial Port(s) in Windows 2000 Go to Start Menu / Settings / Control Panel. Double-click on Add/Remove Hardware. Manual Document# 3PXCC4A3001...
  • Page 27 Click Next. Click on Add/Troubleshoot a device. Click Next. Manual Document# 3PXCC4A3001...
  • Page 28 The following screen will appear after a few seconds. Click Add a new device. Click Next Manual Document# 3PXCC4A3001...
  • Page 29 Click No, I want to select the hardware from a list. Click Ports (COM & LPT). Click Next. Select Standard port types and Communication Ports and Click Next. You will see the following screen, go ahead and Click OK. Manual Document# 3PXCC4A3001...
  • Page 30 The Resources area will allow you to set the IRQ and address of your new ports. Click on the down arrow to the middle right of the screen after “Setting based on”: Click on the highest Basic configuration number in the list on the “Setting based on”...
  • Page 31 Double-click on the Interrupt Request to set the IRQ. Select IRQ and Address that you want your port(s) configured at. Manual Document# 3PXCC4A3001...
  • Page 32 At this point you can shut down the system and physically install your B&B Electronics Serial Card into an available ISA slot. Double check to make sure the addresses and IRQ’s on the Serial Card are set to the correct settings. Manual Document# 3PXCC4A3001...

  • Page 33: Chapter 4: Address And Irq Setting

    Chapter 4: Address and IRQ Setting Address Switch Setup A Windows PC has I/O port addresses and memory addresses. Some devices use both types of addresses. I/O port addresses have a 64K address space. Devices may decode all 16 address bits or only some of the lower bits.
  • Page 34 Figure 1. Silk Screen Plot of 3PXCC4A PCB Manual Document# 3PXCC4A3001...
  • Page 35 When setting the address (via the dipswitch) use the silkscreen on the printed circuit board. This silkscreen shows a “1” and a “0” to refer to the “on and “off” states that each switch is set to. Switch S1 configures port one (labeled J1) and, on two port cards, switch S2 configures port two (labeled J2).

  • Page 36: Interrupt Jumper Setup

    Table 3. Frequently Unused Port Addresses Base Equivalent Address 1000000000 1000001000 1100000000 1100001000 1100010000 1100011000 1110000000 1110001000 1110100000 1110101000 Interrupt Jumper Setup The IRQ is a hardware Interrupt Request line in an ISA bus expansion slot on a PC or AT compatible computer. The 8 bit PC ISA slot has 8 interrupts, the 16 bit slot has another 7 since one of the first 8 is used to link in the remaining 8.

  • Page 37: Shared Irq Mode

    Shared IRQ Mode The 3PXCC4A card has the ability to share interrupts among its ports. Shared IRQ mode should only be used if your software supports this feature. If you are writing your own software, B&B Electronics’ SimpCom V1.04 and later serial communications library supports this feature.

  • Page 38: Chapter 5: Communication Jumper Settings

    Chapter 5: Communication Jumper Settings This chapter will cover all of the jumper settings to set your B&B Serial Card for the proper communications that you desire. CAUTION: Electrostatic Sensitive Device. Use ESD precautions for safe handling. RS-232 Mode To configure Port A for RS-232 mode, 5 jumpers must be checked.

  • Page 39: Rs-485 Mode

    RS-485 Mode To configure Port A for RS-485 mode, 7 jumpers must be checked. The following settings configure PORT 1 as RS-485. The four jumpers of JP7 must be set to the "422" (lower) position. The top two jumpers of JP8 should be set to the 485 (left) position.

  • Page 40: Rs-422 And Rs-485 Termination

    RS-422 and RS-485 Termination A 120 termination resistor has been provided for the RS- 422/485 receivers. To enable the termination provided, the termination jumper should be placed in the Rt IN position (left). If you do not need to use termination, place the jumper in the Rt OUT position (right).

  • Page 41: Chapter 6: Physical Hook-Up And Troubleshooting

    Chapter 6: Physical Hook-up and Troubleshooting This chapter will cover 3PXCC4A pinout, communication cable data, and troubleshooting information. Pinouts RS-232 Pinouts The 3PXCC4A Serial Cards are wired using RJ45 type connectors for each port. The following table shows the pinout for the RS-232 connections.

  • Page 42: Rs-422 Pinouts

    RS-422 Pinouts RS-422 mode supports transmit and receive data signals. The pinouts of the RJ45 connector are given in Table 6. Figure 5 shows how to connect a typical RS-422/RS-485 full duplex communication link. RJ45 Pin RS-422 signal TD(B) TD(A) RD(B) RD(A) Table 6.

  • Page 43: Communication Cable Data

    3PXCC4A Serial Card TD(B+) Pin 1 TD(A-) Pin 2 RD(B+) Pin 3 RD(A-) Pin 4 GND Pin 8 Figure 5. RS-422/RS-485 (Four Wire) Pinout Description 3PXCC4A Serial Card TD(A-) Pin 2 TD(B+) Pin 1 RD(A-) Pin 4 RD(B+) Pin 3 GND Pin 8 Figure 6.

  • Page 44: Troubleshooting

    Troubleshooting If you are unable to communicate with the card from your software: 1. Consult your software manual to make sure it supports the address and interrupt that you have configured. 2. Double check that the address and interrupt are properly set. 3.

  • Page 45: Appendix A: Hardware I/O Map

    Appendix A: Hardware I/O Map I/O Map of XT Class Machines Hex Address Address Function in XT Class Machines DMA controller (8237A) 000-00F interrupt controller (8259A) 020-021 timer (8253) 040-043 PPI(8255A) 060-063 DMA page register (74LS612) 080-083 NMI - non maskable interrupt 0A0-0AF game port joystick controller 200-20F...
  • Page 46 I/O Map of AT Class Machines Hex Address Address Function in AT Class Machines DMA controller #1 (8237A-5) 000-01F interrupt controller #1 (8259A) 020-03F timer (8254) 040-05F keyboard (8042) 060-06F NMI - non maskable interrupt & CMOS RAM 070-07F DMA page register (74LS612) 080-09F interrupt controller #2 (8259A) 0A0-0BF...

  • Page 47: Appendix B: Declaration Of Conformity Statement

    Appendix B: Declaration of Conformity Statement DECLARATION OF CONFORMITY Manufacturer’s Name: Manufacturer’s Address: Model Numbers: Description: Type: Application of Council Directive: Standards: Michael J. Fahrion, Director of Engineering Manual Document# 3PXCC4A3001 B&B Electronics Manufacturing Company P.O. Box 1040 707 Dayton Road Ottawa, IL 61350 USA 3PXCC4A1A, 3PXCC4A1B, 3PXCC4A2A, 3PXCC4A2B...

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