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SC105 CS I/O to RS-232 Interface 

enclosures models ENC10/12, ENC12/14, or ENC16/18).  Spark gap 
wiring is straight through such that pin to pin continuity exists between 
the two modems.  If the modems are installed entirely within a building, 
the transient spark gap protection is probably not needed.   

 

FIGURE 5-2.  Installation of Spark Gap Protection 

Occasionally, a customer needs to transmit data across longer or smaller gage 
wires or at higher speeds than can be done with the RAD modem powered by 
the SC105.  RAD does sell a 9-volt power supply that will boost the signals 
enough to meet some of these more demanding applications.  Please contact 
RAD for more information. 

Summary of Contents for SC105 CS

Page 1: ...SC105 CS I O to RS 232 Interface Revision 11 13 C o p y r i g h t 2 0 0 4 2 0 1 3 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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Page 3: ...emoving reinstalling and shipping defective products to Campbell Campbell will return such products by surface carrier prepaid within the continental United States of America To all other locations Ca...

Page 4: ...g container Campbell Scientific s shipping address is CAMPBELL SCIENTIFIC INC RMA _____ 815 West 1800 North Logan Utah 84321 1784 For all returns the customer must fill out a Statement of Product Clea...

Page 5: ...u 3 3 1 Set up Menu Selections 4 4 Installation 5 5 RAD Modem Application 5 5 1 RAD Modem Two Way 6 5 2 RAD Modem Wiring and Grounding 6 5 3 Testing RAD Modem Communication 8 6 CDMA Modem Application...

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Page 7: ...C105 is supplied from the 5 V supply on pin 1 of the datalogger s CS I O port The SC105 will use the 5 V supply to power the RS 232 modem if needed Two way interactive communication Supports most RS 2...

Page 8: ...ection 7 Out RTS Request to Send Modem Enable 8 In CTS Clear to Send 9 In Ring Rings Datalogger CS I O 9 Pin Male Connector Pin out Pin No I O Name Description 1 In 5 V Regulated 5 Volt supply 2 GND G...

Page 9: ...The Set up Menu is shown in FIGURE 3 1 It is accessed by connecting the SC105 s RS 232 port to a PC with the included null modem cable The SC105 also needs to have power Usually the SC105 is powered...

Page 10: ...Addressed Print Device is a mode that allows output from the datalogger when it executes the P96 instruction 2 RS 232 Port Configuration RS 232 baud rate data bits and parity are configured here as w...

Page 11: ...e to lightning is possible If this is a RAD modem application see Section 5 2 RAD Modem Wiring and Grounding 5 RAD Modem Application The SC105 can be used with a short range modem to communicate acros...

Page 12: ...back of the RAD modem connected to the SC105 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 printer set the DCE DTE switch to DTE 2 Select...

Page 13: ...ng the transient spark gap protection is probably not needed FIGURE 5 2 Installation of Spark Gap Protection Occasionally a customer needs to transmit data across longer or smaller gage wires or at hi...

Page 14: ...ter keyboard If the key pressed is not returned then the cable from the modem at the computer to the datalogger modem is defective and will need to be repaired or replaced 3 If steps 1 and 2 pass the...

Page 15: ...ion Typically the Freewave radios will be used in a PakBus network with PakBus OS dataloggers With a PakBus datalogger the CS I O port configuration on the SC105 should be set to SDC 7 SDC 8 SDC 10 or...

Page 16: ...SC105 CS I O to RS 232 Interface 10...

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Page 18: ...ANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Santo Domingo Heredia 40305 COSTA RICA www campbellsci cc info campbell...

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