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22

2-PORT RS-232/422/485 PCI HOST ADAPTER

5. Troubleshooting

5.1 The Serial Utility Diskette

The Adapter comes with a Serial Utility Diskette that has diagnostic software on it.
We recommend that you always use this software first when you troubleshoot
problems, because it can help resolve most common problems related to software
and operating-system incompatibilities without requiring you to call Technical
Support.

1. Make sure the Adapter is securely installed in a motherboard slot.

2. Use the supplied diskette and User Manual to verify that the Adapter is

configured correctly. The supplied diskette contains the diagnostic programs
“FindPCI,” “SSD” (for DOS), and “WINSSD” (for Windows NT, 3.1, or 95),
which will verify if an adapter is configured properly. First, run the “FindPCI”
utility and record the base I/O addresses and the IRQ assignments, these will
be needed for SSD. Next, run the “SSD” diagnostic program (for DOS) or the
“WINSSD” program (for Windows). Refer to the \dos\diag\diag.txt file on the
supplied diskette for detailed instructions on using “SSD.”

The Serial Utility Diskette might also contain README-style text files. You can
consult these for information about issues that might have arisen since this manual
was written, and for application-specific information.

Содержание 2-Port RS-232/422/485

Страница 1: ...y 877 877 BBOX FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox c...

Страница 2: ...s operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever mea...

Страница 3: ...following European standards must be met EN55022 Class A Limits and methods of measurement of radio interference characteristics of information technology equipment EN50082 1 Electromagnetic compatibi...

Страница 4: ...ato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito en las in...

Страница 5: ...ejos de las lineas de energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liq...

Страница 6: ...e 16 3 7 Baud Rates and Divisors for the Div 2 Mode 18 4 Installation 20 4 1 Setting Up the Operating System 20 4 1 1 Windows 3 1x 20 4 1 2 Windows 95 98 20 4 1 3 Windows NT 21 4 1 4 DOS 21 4 1 5 Othe...

Страница 7: ...PORT RS 232 422 485 PCI HOST ADAPTER CONTENTS continued Appendix C Electrical Interfaces 28 C 1 RS 232 28 C 2 RS 422 28 C 3 RS 485 29 Appendix D Asynchronous Communications 30 Appendix E Board Layout...

Страница 8: ...Rate IC133C R2 Up to 460 8 kbps IC187C 460 8 kbps and above Distance Up to 4000 ft 1219 2 m Number of Ports 2 RS 232 422 485 Connectors 2 DB9 male Temperature Operating 32 to 122 F 0 to 50 C Storage 4...

Страница 9: ...ch port to automate your data collection You can even mix the ports in any of the interface combinations to provide maximum flexibility to your application In both RS 232 and RS 422 modes the card wor...

Страница 10: ...tory default settings are as follows Table 2 1 Factory Default Settings Port Electrical Specification Port 1 RS 232 Port 2 RS 232 For your reference record installed Adapter settings below Table 2 2 I...

Страница 11: ...tracted from the application program This ability means that the user can effectively use the Adapter in a RS 485 application with existing i e standard RS 232 software drivers Headers J1B and J2B are...

Страница 12: ...of the valid settings for J1B and J2B Interface Mode Examples J1D J4D Figure 3 1 Headers J1B and J2B set for RS 422 Figure 3 2 Headers J1B and J2B set for RS 485 Auto with No Echo Figure 3 3 Headers...

Страница 13: ...Termination Typically each end of the RS 485 bus must have line terminating resistors RS 422 terminates at the receive end only A 120 ohm resistor is across each RS 530 422 485 input in addition to a...

Страница 14: ...ull down resistor in the RS 422 RS 485 receiver circuit Receive data only T Adds or removes the 120 ohm termination L Connects the TX to RX for RS 485 two wire operation L Connects the TX to RX for RS...

Страница 15: ...via four 24 pin DIP shunts at E1 E4 Please use the following illustration to aid in the configuration of your electrical interface Figure 3 7 Headers E1 through E4 which control electrical interface s...

Страница 16: ...he baud rates commonly associated with COM ports for example 2400 4800 9600 and 19 200 bps and so on up to 115 2 kbps place the jumper in the divide by 4 mode marked DIV4 Figure 3 8 Clocking mode divi...

Страница 17: ...isors for the Div1 Mode The following table shows some common data rates and the rates you should choose to match them if you re using the Adapter in the Div1 mode Table 3 2 Baud Rates for the Div 1 M...

Страница 18: ...d rate divisors choose the appropriate divisor from the following table Table 3 3 Divisors for the Div 1 Mode For this Data Rate Choose this Divisor 1200 bps 384 2400 bps 192 4800 bps 96 9600 bps 48 1...

Страница 19: ...the rates you should choose to match them if you re using the adapter in the Div2 mode Table 3 4 Baud Rates for the Div 2 Mode For this Data Rate Choose this Baud Rate 1200 bps 600 bps 2400 bps 1200 b...

Страница 20: ...PTER 3 Card Setup Table 3 5 Divisors for the Div 2 Mode For this Data Rate Choose this Divisor 1200 bps 192 2400 bps 96 4800 bps 48 9600 bps 24 19 2 kbps 12 38 4 kbps 8 57 6 kbps 4 115 2 kbps 2 230 4...

Страница 21: ...assigned to the two ports will be COM5 and COM6 if those numbers are not already assigned If they are assigned to other devices the next available COM numbers will be assigned to the ports To change t...

Страница 22: ...4 DOS Refer to the Readme txt file found in the DOS directory on Disk 1 of the Serial Utilities software 4 1 5 OTHER OPERATING SYSTEMS Refer to the appropriate directory on Disk 1 of the Serial Utilit...

Страница 23: ...to verify that the Adapter is configured correctly The supplied diskette contains the diagnostic programs FindPCI SSD for DOS and WINSSD for Windows NT 3 1 or 95 which will verify if an adapter is con...

Страница 24: ...roblem occurs the components involved in the problem make and model of PC other cards installed in it the cables you re using etc any particular application that when used appears to create the proble...

Страница 25: ...uest In these early days of PCs the ability to share IRQs was an important feature for any add in I O card Consider that in the IBM XT the available IRQs were IRQ0 through IRQ7 Of these interrupts onl...

Страница 26: ...use of this port means that the software designer now only has to poll a single port to determine if an interrupt is pending The ISP is at base 7 on each port For example if the base 280 hex the statu...

Страница 27: ...Pin Mode TD Transmit Data 3 Output RTS Request To Send 7 Output DTR Data Term Ready 4 Output GND Ground 5 RD Receive Data 2 Input DCD Data Carrier Detect 1 Input DSR Data Set Ready 6 Input CTS Clear T...

Страница 28: ...Name Pin Mode GND Ground 5 TX Transmit Data Positive 4 Output TX Transmit Data Negative 3 Output RTS Request To Send Positive 6 Output RTS Request To Send Negative 7 Output RX Receive Data Positive 1...

Страница 29: ...The RS 232 and the EIA TIA 574 specification define two types of interface circuits Data Terminal Equipment DTE and Data Circuit Terminating Equipment DCE The Adapter is a DTE device C 2 RS 422 The RS...

Страница 30: ...low for 32 drivers and 32 receivers to be connected to one line This interface is ideal for multidrop or network environments RS 485 s tristate not dual state driver will allow the electrical presence...

Страница 31: ...e and straightforward programming interface A start bit followed by a pre defined number of data bits 5 6 7 or 8 defines character boundaries for asynchronous communications The end of the character i...

Страница 32: ...wrapped framed by pre defined bits to mark the beginning and end of the serial transmission of the character The data rate and communication parameters for asynchronous communications have to be the...

Страница 33: ...BY 4 JxC CLOCK DIV C2 J1C DIV1 DIV2 DIV4 R31 E6 U9 16550 PLCC 16550 PLCC Port 1 Port 2 PORT1 J1x PORT2 J2x P PULL UP DOWN ENABLE T TERMINATION ENABLE L CONNECT RX TO TX JxA JUMPER SETTINGS Port 1 J2...

Страница 34: ...NOTES...

Страница 35: ...NOTES...

Страница 36: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 2000 Black Box Corporation All rights reserved...

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