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SC932C 9-Pin to RS232-DCE Interface
Table of Contents

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1.  Installation...................................................................1

2.  Use with Intelligent Telephone Modems ...................1

3.  Other Applications......................................................1

Appendices

A.  SC932C to RS232 Device Connection Details ...... A-1

A.1  Cable for Connection to a 25-Pin DCE Interface.................................A-1
A.2  Cable for Connection to a 9-Pin DCE Interface...................................A-1

B.  Technical Details of Special Modes of Operation B-1

B.1  Power Modes........................................................................................B-1
B.2  Handshaking Lines ...............................................................................B-1
B.3  ‘Printer Only’ Output ...........................................................................B-1
B.4  Maximum Recall Interval.....................................................................B-2

C.  Specifications......................................................... C-1

List of Figures

1.  SC932C Connected to RAD Short-Haul Modem........................................1
A-1.  Minimum Connections for SC932C to 25-pin DCE Interface ............A-1
A-2.  Minimum Connections for SC932C to 9-pin DCE Interface ..............A-1
B-1.  Connections for Using SC932C in ‘Printer’ Mode .............................B-2

List of Tables

C-1.  25-Pin Male Connector Pin-out ..........................................................C-2
C-2.  9-Pin Male Connector Pin-out ............................................................C-2

Summary of Contents for SC932C 9-Pin

Page 1: ...INSTRUCTION MANUAL 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...

Page 2: ...all other warranties expressed or implied including warranties of merchantability or fitness for a particular purpose CAMPBELL SCIENTIFIC INC is not liable for special indirect incidental or consequen...

Page 3: ...DCE Interface A 1 A 2 Cable for Connection to a 9 Pin DCE Interface A 1 B Technical Details of Special Modes of Operation B 1 B 1 Power Modes B 1 B 2 Handshaking Lines B 1 B 3 Printer Only Output B 1...

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Page 5: ...C The SC932C can usually be connected to the RS232 device by plugging the SC932C directly into the serial connector on the RS232 device No further configuration is normally required A typical applicat...

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Page 7: ...SC932C to 25 pin DCE Interface NOTE The link between pins 4 and 4 marked with the may not be required see the section on low power operation in Appendix B A 2 CABLE FOR CONNECTION TO A 9 PIN DCE INTER...

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Page 9: ...s which do not need to source power from the SC932C This is done by not connecting pin 11 or the RTS line to the RS232 device This is because a small current will flow from the active RTS line into a...

Page 10: ...ves communications mode ME goes low there is a delay of approximately one second before serial or ring line activity from the RS232 device will re awaken the datalogger This prevents spurious messages...

Page 11: ...With 3 inputs connected DTR RTS and Tx from the SC932C of the minimum 3k input impedance and high communications activity the consumption may be up to 16mA RS232 OUTPUT LEVELS RTS 4 2 4 5V with 3k loa...

Page 12: ...active by SC932C 7 GND Signal Ground 11 in PWR If held 3 5V will force SC932C into high power mode 20 out DTR Held high if ME is high see Appendix B TABLE C 2 9 Pin Male Connector Pin out Pin No I O N...

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Page 14: ...campbellsci com br suporte campbellsci com br Campbell Scientific Canada Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientifi...

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