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Please note that this manual was originally produced by Campbell Scientific Inc. primarily for the North 
American  market. Some spellings, weights and measures may reflect this origin. 

Some useful conversion factors: 

Area:

   1 in

2

 (square inch) = 645 mm

2

 

Length:    

1 in. (inch) = 25.4 mm 

1 ft (foot) = 304.8 mm 
1 yard = 0.914 m 
1 mile = 1.609 km 

Mass:

  

1 oz. (ounce) = 28.35 g 
1 lb (pound weight) = 0.454 kg 

Pressure:

 

1 psi (lb/in

2

) = 68.95 mb 

Volume:

 

1 UK pint = 568.3 ml 
1 UK gallon = 4.546 litres 
1 US gallon = 3.785 litres 

In addition, while most of the information in the manual is correct for all countries, certain information 
is specific to the North American market and so may not be applicable to European users.  

Differences include the U.S standard external power supply details where some information (for 
example the AC transformer input voltage) will not be applicable for British/European use. 

Please note, 

however, that when a power supply adapter is ordered it will be suitable for use in your country. 

Reference to some radio transmitters, digital cell phones and aerials may also not be applicable 
according to your locality. 

Some brackets, shields and enclosure options, including wiring, are not sold as standard items in the 
European market; in some cases alternatives are offered. Details of the alternatives will be covered in 
separate manuals. 

Part numbers prefixed with a “#” symbol are special order parts for use with non-EU variants or for 
special installations. Please quote the full part number with the # when ordering. 

Recycling information 

At the end of this product’s life it should not be put in commercial or domestic refuse but 
sent for recycling.  Any batteries contained within the product or used during the 
products life should be removed from the product and also be sent to an appropriate 
recycling facility. 

Campbell Scientific Ltd can advise on the recycling of the equipment and in some cases 
arrange collection and the correct disposal of it, although charges may apply for some 
items or territories.  

For further advice or support, please contact Campbell Scientific Ltd, or your local agent. 

Campbell Scientific Ltd, 80 Hathern Road, Shepshed, Loughborough, LE12 9GX, 

UK Tel: +44 (0) 1509 601141    Fax: +44 (0) 1509 

270924

Email: [email protected] 

www.campbellsci.co.uk 

Summary of Contents for SC932A

Page 1: ...SC932A CS I O to RS 232 DCE Interface Revision 12 2022 Copyright 1987 2022 Campbell Scientific CSL I D 483...

Page 2: ...under guarantee or not Please state the faults as clearly as possible and if the product is out of the guarantee period it should be accompanied by a purchase order Quotations for repairs can be give...

Page 3: ...cell phones and aerials may also not be applicable according to your locality Some brackets shields and enclosure options including wiring are not sold as standard items in the European market in some...

Page 4: ...beginning work Wear a hardhat and eye protection and take other appropriate safety precautions while working on or around tripods and towers Do not climb tripods or towers at any time and prohibit cl...

Page 5: ...ions 1 General Description 1 2 Specifications 2 3 Installation 3 4 RAD Modem Application 3 4 1 RAD Modem Two Way 4 4 2 RAD Modem Wiring and Grounding 4 4 3 Testing RAD Modem Communication 6 Figures 1...

Page 6: ...the 5 V supply on pin 1 of the data logger s CS I O port The SC932A will use the 5 V supply to power the RS 232 modem if needed Two way interactive communication The SC932A is frequently used with a s...

Page 7: ...Ground 6 In DSR Data Set Ready No Connection 7 Out RTS Request to Send Modem Enable 8 In CTS Clear to Send No Connection 9 In Ring Rings Data Logger CS I O 9 Pin Male Connector Pin out Pin No I O Nam...

Page 8: ...oper transient protection should be installed to protect the computer and data logger in areas where damage due to lightning is possible If this is a RAD modem application see Section 4 2 RAD Modem Wi...

Page 9: ...ollows 1 Set the DCE DTE switch on the back of the RAD modem connected to the SC932A to DCE For a RAD modem connected to a PC set the DCE DTE switch to DCE For a RAD modem connected to a serial printe...

Page 10: ...stomer needs to transmit data across longer or smaller gauge wires or at higher speeds than can be done with the RAD modem powered by the SC932A RAD does sell a 9 volt power supply that will boost the...

Page 11: ...em at the data logger end Twist together the XMT wire and RCV wire twist together the XMT wire and the RCV wire Repeat the process of step 1 by pressing a key on the computer keyboard If the key press...

Page 12: ...nfo campbellsci fr www campbellsci fr Germany Location Phone Email Website Bremen Germany 49 0 421 460974 0 info campbellsci de www campbellsci de India Location Phone Email Website New Delhi DL India...

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