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Campbell SC932C 9-Pin Instruction Manual

9-pin to rs-232-dce interface
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SC932C 9-Pin to
RS-232-DCE Interface
Revision: 6/97
C o p y r i g h t
( c )
1 9 9 7
C a m p b e l l
S c i e n t i f i c ,
I n c .

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Summary of Contents for Campbell SC932C 9-Pin

  • Page 1 SC932C 9-Pin to RS-232-DCE Interface Revision: 6/97 C o p y r i g h t ( c ) 1 9 9 7 C a m p b e l l S c i e n t i f i c ,...
  • Page 2 Warranty and Assistance The SC932C 9-PIN TO RS232-DCE INTERFACE is warranted by CAMPBELL SCIENTIFIC, INC. to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. Batteries have no warranty. CAMPBELL SCIENTIFIC, INC.'s obligation under this warranty is limited to repairing or...

  • Page 3: Table Of Contents

    SC932C 9-Pin to RS232-DCE Interface Table of Contents PDF viewers note: These page numbers refer to the printed version of this document. Use the Adobe Acrobat® bookmarks tab for links to specific sections. 1. Installation..............1 2. Use with Intelligent Telephone Modems ....1 3.
  • Page 4 This is a blank page.

  • Page 5: Installation

    SC932C 9-PIN TO RS232-DCE INTERFACE The SC932C is used to interface a Campbell Scientific datalogger to modem devices that are configured with an RS232 DCE (Data Communications Equipment) serial port. The most common application is to allow the connection of a RAD short haul modem or third party telephone modem to a datalogger.
  • Page 6 This is a blank page.

  • Page 7: Sc932C To Rs232 Device Connection Details

    APPENDIX A. SC932C TO RS232 DEVICE CONNECTION DETAILS This Appendix gives details of the cables required for connection of an SC932C to DCE type RS232 devices, if the SC932C cannot be directly plugged into the 25-pin DCE, RS232 socket. A.1 CABLE FOR CONNECTION TO A 25-PIN DCE INTERFACE A standard pin-to-pin cable is suitable.
  • Page 8 This is a blank page.

  • Page 9: Technical Details Of Special Modes Of Operation

    The SC932C is designed as a simple plug-in device with no internal jumpers. This Appendix describes alternative modes of operation and also relates these to Campbell Scientific’s original SC932 interface, for those users who are already familiar with that interface.

  • Page 10: Maximum Recall Interval

    Campbell Scientific are aware of some modems which will re-trigger the ring line, despite this delay. The only consequence of this is that the datalogger will remain in communications mode for an extra 30 seconds after the end of the call;...

  • Page 11: Specifications

    APPENDIX C. SPECIFICATIONS • Data rates: up to 38,400 baud (limited by RTS full power 7 - 9V with 3kΩ load (ME datalogger) high) • Size: 63 x 55 x 17mm (L x W x D), excluding DTR 7.5 - 9.5V with 3kΩ load (8.8V typical mating D connectors with RAD);...

  • Page 12: C-1. 25-Pin Male Connector Pin-Out

    APPENDIX C. SPECIFICATIONS CONNECTION DETAILS TABLE C-1. 25-Pin Male Connector Pin-out Name Description Chassis Ground SC932C transmits data on this line SC932C receives data on this line Held active by SC932C Signal Ground If held >3.5V will force SC932C into high power mode Held high if ME is high (see Appendix B)
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  • Page 14 Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za sales@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA)

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