Campbell Scientific COM210 Telephone Modem User Manual
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COM210 Telephone Modem
Table of Contents
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1. Introduction..................................................................1
1.1 General Description ..................................................................................1
1.2 Computer Requirements ...........................................................................1
2. Specifications ..............................................................1
3. Installation....................................................................2
3.1 Connecting to Datalogger .........................................................................2
3.2 Connecting to Earth Ground.....................................................................3
3.3 Telephone to MD485 or Telephone to RF Systems..................................3
3.4 Telephone Service ....................................................................................3
4. Troubleshooting ..........................................................6
5. Modem Settings in Non-Volatile Memory ..................7
Appendixes
A. Modifying the Non-Volatile Memory ...................... A-1
A.1 Hardware Connection to COM210 ..................................................... A-1
A.2 Remote Communication to the COM210 ........................................... A-2
A.3 Hayes AT Command Summary .......................................................... A-4
B. CS I/O Connection................................................... B-1
B.1 CS I/O 9 Pin Connection......................................................................B-1
C. Theory of Operation................................................ C-1
C.1 Theory of Operation.............................................................................C-1
D. FCC Warning to Users of
Class A Computing Devices.............................. D-1
E. IC Information .......................................................... E-1