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DCSCOM

Telephone Modem

User Guide

 Issued 1.3.99

Copyright 

1999 Campbell Scientific Ltd.

Summary of Contents for DCSCOM

Page 1: ...DCSCOM Telephone Modem User Guide Issued 1 3 99 Copyright 1999 Campbell Scientific Ltd...

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Page 3: ...lieu of all other guarantees expressed or implied including those of suitability and fitness for a particular purpose Campbell Scientific is not liable for consequential damage Please inform us befor...

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Page 5: ...uction 1 2 Installation 2 2 1 Modem Configuration 3 3 Power Requirements 3 4 Troubleshooting 3 Appendix A AT Command Summary A 1 Figures 1 Connector Pin Diagram 2 2 Schematic Diagram of Datalogger Mod...

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Page 7: ...on datalogger programming refer to the description of Instruction 97 in the datalogger manual The DCSCOM is powered from the 5V supply of the datalogger Current con sumption is 0 002mA when off line...

Page 8: ...ne line we recommend that you install lightning arrestors on the telephone line note that the warranty on the DCSCOM does not cover lightning damage Please contact British Telecom or Campbell Scientif...

Page 9: ...n in Section 1 When not com municating power consumption is negligible However note that the on line consumption although not great is large compared to the datalogger s normal requirements This must...

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Page 11: ...for the remote modem carrier If the carrier is detected the result code 1 will be returned otherwise the result code 3 will be returned and the modem will return to the command mode Commands AT Prefi...

Page 12: ...isters S0 Rings before auto answer 0 255 S6 Wait for dial tone 2 255 seconds S7 Wait for remote carrier 1 255 seconds S8 Comma pause time 0 255 seconds S10 Delay time between loss of carrier and hang...

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