CommTech FASTCOM 422/4-PCI Hardware Reference Manual Download Page 11 | Manualshive

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FASTCOM: 422/4-PCI

BOARD LAYOUT

DB37

CONNECTOR

PCI

CONTROLLER

16C864

UART

TRANSMIT /
RECEIVE
LEDs

PACKING LIST

FASTCOM: 422/4-PCI CARD

ADAPTER

CABLE

FASTCOM

CD

If an omission has been made, please call technical support for a replacement.

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Summary of Contents for FASTCOM 422/4-PCI

Page 1: ...F A ASTCOM DAPTERS FASTCOM 422 4 PCI Advanced Four Channel RS 422 RS 485 Interface for PCI Bus Hardware Reference Manual Manufactured by 9011 E 37th St N Wichita KS 67226 2006 ...

Page 2: ......

Page 3: ...d including those to reproduce this document or parts thereof in any form without permission in writing from Commtech Inc FASTCOM and SMART14 are trademarks of Commtech Inc IBM is a registered trademark of International Business Machines Corporation Microsoft is a registered trademark of Microsoft Corporation WINDOWS is a trademark of Microsoft Corporation ...

Page 4: ... years 2 2 13 Corrected DB9 diagram Made pin 6 CTS and pin 7 CTS 2 3 6 Added link to installation manual 2 4 13 Updated contact information 2 5 8 9 Updated Fastcom Serial Settings 2 6 1 14 Updated revision level Changed warranty period to lifetime 2 7 12 CTS pin numbers swapped ...

Page 5: ... Features 4 Board Layout 5 INSTALLATION Installing the Hardware Software 6 Testing the Installation 6 FASTCOM SERIAL SETTINGS 8 RS 422 485 10 Termination Resistance 11 CABLE DB37 to DB9 12 RS 422 CABLE 13 RS 485 CABLE 13 TECHNICAL SUPPORT 14 APPENDIX B 16C864 UART Technical Data 15 ...

Page 6: ......

Page 7: ...Class B Limits EN 50082 1 1992 EMC Generic Immunity Standard Part 1 Residential Commercial and Light Industry IEC 801 2 1984 Method of Evaluating Susceptibility to Electrostatic Discharge Level 4 IEC 801 3 1984 Radiated Electromagnetic field Requirements Level 3 IEC 801 4 1988 Electrical Fast Transient Burst Requirements Level 2 Products listed on this declaration are exempt from the requirements ...

Page 8: ...2 ...

Page 9: ... with RS 422 485 communications within high overhead operating systems such as Windows NT and Windows 98 The advanced UART on the Fastcom 422 4 PCI is capable of all standard baud rates plus a high speed mode capable of up to an amazing 1 5 Mbaud Software drivers for Windows 98 NT 2000 XP and Linux are supplied Multiple Fastcom 422 4 PCI adapters can be installed in all operating systems The Fastc...

Page 10: ...tes Control Registers 4 bytes INTERRUPT REQUIREMENTS 1 per board FEATURES New high performance 16C864 UART Standard on the Fastcom 422 4 PCI no extra charge All baud rates up to 1 5 Mbaud 128 byte FIFOs for improved throughput User programmable baud rate Switchless design Hardware control for 485 driver Echo cancel available in 485 mode Durable cables with RFI shielding Comprehensive Hardware and ...

Page 11: ...PCI BOARD LAYOUT DB37 CONNECTOR PCI CONTROLLER 16C864 UART TRANSMIT RECEIVE LEDs PACKING LIST FASTCOM 422 4 PCI CARD ADAPTER CABLE FASTCOM CD If an omission has been made please call technical support for a replacement ...

Page 12: ...his manual TESTING THE INSTALLATION To fully test the installation of your Fastcom 422 4 PCI you will need to build a loop back plug Materials needed are a DB9 male plug solder cup style and two short pieces of 20 or 24 AWG stranded wire This loop back plug can be used to test any RS 422 port Jumper the pins together on the DB9 as illustrated below 4 TX 5 4 8 9 5 TX 8 RX 9 RX TESTING YOUR FASTCOM ...

Page 13: ... an IRQ to the Fastcom card Try disabling IRQ steering or varying the options in Control Panel System Device Manager System Devices PCI Bus 4 Multiple COMx assignments In Windows NT the driver setup assumes that there are not any ports installed above COM4 and starts assigning the Fastcom ports at COM5 If there is already a COM5 or higher in the system it is likely that the Fastcom ports are being...

Page 14: ...ble When checked the receive is disabled during transmit Enable Source When checked the 485 driver control is RTS This is compatible with older boards and software which are not automatically controlled by hardware Uncheck Auto 485 When unchecked the 485 driver control is OUT1 on the UART This is compatible with hardware control of automatic 485 mode Check Auto 485 BaudTable Win2K XP This table re...

Page 15: ...ndard PC baud rate to the left of the box you ended on You will select this standard baud rate to set up your com ports and the baud rate you require will be substituted If you receive an error message stating that the maximum baud rate was exceeded change the Clock Divisor to 1 and try again INPUT FREQUENCY This is the calculated frequency required to generate the baud rate requested When you cli...

Page 16: ... differential signal consisting of TX and TX the receive signal RX in RS 232 consists of RX and RX Another draw back of RS 232 is that more than two devices cannot share a single cable This is also true of RS 422 and that s why the RS 485 standard was developed RS 485 offers all of the benefits of RS 422 and also allows multiple units up to 32 to share the same twisted pair of wires see diagram on...

Page 17: ...work the termination resistor should be removed from all units except the first and last see the RS 485 illustration below Call for technical support if you need to modify the resistor You may also order the Fastcom 422 4 PCI without the termination resistor installed it is easier to add the resistor than to remove it Observe the resistors in the following drawings and remember that they are built...

Page 18: ... 32 33 34 35 36 37 CTS 4 CTS 4 RTS 4 RX 4 TX 4 RTS 3 GND RX 3 TX 3 CTS 2 CTS 2 RTS 2 RX 2 TX 2 RTS 1 GND RX 1 TX 1 RX 1 TX 1 9 CTS 3 DB9 PIN DESCRIPTION Four Receptacles 9 8 7 6 5 4 3 2 1 TX TX RX RX RTS CTS RTS GND CTS DB9 PIN DESCRIPTION The FASTCOM 422 4 PCI features four RS 422 RS 485 channels which are accessed through four DB9 connectors on the cable assembly The following is a pin descripti...

Page 19: ... driver transmitter can occupy the network at a time This means that each station on the network must control the enabling disabling of its drivers in order to avoid network conflicts If two drivers engage the network at the same time data from both will be corrupted In RS 485 mode the receivers are always enabled The following cable illustration shows four RS 485 Devices sharing the same twisted ...

Page 20: ...tch positions your cables and your program We recommend that you build the loop back plug that is described in the Programming section of this manual With that plug you can quickly isolate the problem to the board cables or software If you still have unresolved questions use the following procedure to get technical support 1 Call our Technical Support Staff at 316 636 1131 They are on duty from 9 ...

Page 21: ...15 APPENDIX A 16C864 UART DATA ...

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