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COM200 TELEPHONE MODEM

INSTRUCTION MANUAL

REVISION: 5/01

COPYRIGHT (c) 1997-2001 CAMPBELL SCIENTIFIC, INC.

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Summary of Contents for COM200

Page 1: ...COM200 TELEPHONE MODEM INSTRUCTION MANUAL REVISION 5 01 COPYRIGHT c 1997 2001 CAMPBELL SCIENTIFIC INC ...

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Page 3: ...bility or fitness for a particular purpose CAMPBELL SCIENTIFIC INC is not liable for special indirect incidental or consequential damages Products may not be returned without prior authorization To obtain a Returned Materials Authorization RMA contact CAMPBELL SCIENTIFIC INC phone 435 753 2342 After an applications engineer determines the nature of the problem an RMA number will be issued Please w...

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Page 5: ...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 COM200 A 1 A 2 Remote Communication to the COM200 A 1 A 3 Hayes at Command Summary A 3 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 Compu...

Page 6: ...with CR10 Wiring Panel and COM200 Using RJ11C Telephone Jack 5 A 1 CR10X with CR10 Wiring Panel and the old COM200 Using RJ11C Telephone Jack A 2 A 2 COM200 to Computer Connection A 2 B 1 CS I O Pin Out B 1 List of Tables 1 Dataloggers that Require Direct 12 VDC Connection to COM200 3 F 1 Dataloggers that Require Direct 12 VDC Connection to COM200 F 1 ...

Page 7: ...talogger is programmed using Instruction 97 Instruction 97 is described in detail in the datalogger manual 1 2 Computer Requirements A Hayes compatible modem is used at the computer site with Campbell Scientific computer software to call the datalogger attached to the COM200 The computer s modem must be configured to the proper settings using the modem initialization strings listed in the software...

Page 8: ...nce to radio and TV reception requiring the operator to take whatever steps are necessary to correct the interference 12V G FIGURE 1 COM200 3 Installation The COM200 is designed to be used with standard analog telephone lines It will not work with a digital telephone line Connection to telephone company provided coin service central office implemented systems is prohibited Connection to party line...

Page 9: ...dio systems can be utilized for communicating with multiple dataloggers through one telephone line Nothing additional or special is required for the telephone part of the link See the MD9 or RF Manuals for complete information on their special requirements 3 4 Telephone Service The goal of the telephone company is to provide you with the best service it can In order to do this it may occasionally ...

Page 10: ... I N G TI P B urialP hone C abl e B l ue R ing B l ue W hite Tip To E arth G round P hone L ine Transient P rotector M odel6 3 6 2 or 2 3 7 2 0 1 S C 1 2 C abl e C ompl ies with P art 6 8 F C C rul es F C C R egistration N o B 9 Q U S A 7 5 3 7 8 M M T R inger E q uiv al ence 0 5 A R eq uired C onnector U S O C R J 1 1 C This eq uipment compl ies with the req uirements in P art 1 5 of F C C R ul e...

Page 11: ... V P O W E R I N S E R I A L I O S E D I F F A G H L A G H L A G H L A G G G E 1 E 2 1 2 3 1 2 3 4 5 6 G 5 V 5 V P 1 P 2 C 8 C 7 C 6 C 5 C 4 C 3 C 2 C 1 C O N TR O L 1 2 V S W I TC H E D To E arth G round 1 4 A W G G round W ire S C 1 2 C abl e Tel ephone W al l J ack R ed B l ack G round 1 2 v CAME SCIENTIFIC AUSTRAIA T TD COM2A MODEM S N 0 0 0 2 M A D E I N U S A R E N 0 5 FIGURE 3 CR10X with CR...

Page 12: ...will respond back to the computer with result codes depending on how the call is progressing These result codes can be either numeric 0 1 2 etc or verbose OK CONNECT RING etc Our software expects numeric result codes The result codes may appear on a new line be appended to the last line or may even replace the first letter s of the last line If these characters are verbose the initialization strin...

Page 13: ... auto answer This option is used only when the modem is not to answer a call For example the COM200 is connected to a telephone line which is to be used part time for voice communication In this situation it is best to have the datalogger call the computer Answer on X th ring This option is used when the modem is sharing a line and you only want it to answer after a specified number of rings For e...

Page 14: ...COM200 Telephone Modem 8 This is a blank page ...

Page 15: ...uter software PC208W used to communicate with the COM200 must set the RS232 RTS line low For example to change the COM200 to answer on the 3 rd ring the following commands would be sent to the COM200 through the PC208W terminal emulator RTS not active on modem hardware configuration ATS0 3 AT W0 A 2 Remote Communication to the COM200 To remotely communicate with the COM200 program the datalogger t...

Page 16: ... necessary to correct the interference C Cable ed lac C2 A AC A A A o o FIGURE A 1 COM200 to Computer Connection CA CC C C A A Complies ith art CC rules CC egistration o A inger uialence euired Connector C C Canadian oad o his euipment complies ith the reuirements in art of CC ules for Class A computing deice peration of this euepment in a residential area may cause unacceptable interference to ra...

Page 17: ...tion S 4 48 Option 0 5 61 Option 6 51 Option 3 7 38 Option 8 87 Option W 3 Extended Parameters P63 1 48 Option 0 2 68 Option D 3 84 Option T 4 13 Option 5 00 Option 6 00 Option 7 00 Option 8 00 Option A 3 Hayes AT Command Summary This manual does not attempt to be a primer on the Hayes AT command set The commands are therefore only summarized below For most applications these commands will not nee...

Page 18: ...load on power up V Display the current profile to the screen RESULT CODES 0 OK 1 Connect 2 Ring 3 No Carrier 4 Error 5 Connect 1200 Baud 6 No Dial Tone 7 Busy 8 No Answer 12 Connect 9600 Baud 13 Connect 9600 14400 Baud 17 Connect 9600 Baud If more than four rings are specified the datalogger may time out before the modem answers communication will never be established It is possible in some condit...

Page 19: ...C supply Not used by COM200 2 input Ground 3 output Ring a logic high signifies a ring signal has been detected 4 output RX Data serial data from COM200 5 input Modem Enable a logic high internally switches power to the modem A logic low internally shuts off power to the modem 6 input Serial Device Enable a logic high disables communication with the modem without removing power or changing the mod...

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Page 21: ...er through an opto coupler The datalogger responds by raising the Modem Enable line which internally switches the 12 VDC power to the modem The modem then answers and remains off hook until it loses the carrier or the datalogger lowers the Modem Enable line The datalogger lowers the Modem Enable line by remote command or after 40 seconds in the absence of a command When the Modem Enable line goes ...

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Page 23: ...ns It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when operated in a COMMERCIAL ENVIRONMENT Operation of this equipment in a residential area may cause interference to radio and television reception The operator must take whatever measur...

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Page 25: ... be coordinated by a representative designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe s...

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Page 27: ...r CR7 700X serial number 2778 or lower BDR301 and BDR320 F 1 MADE IN USA WIRING PANEL NO EARTH DIFF SE AG H L AG H L AG H L AG G G E3 AG 4 5 6 7 8 9 10 11 12 G G G G 12V 12V SWITCHED 12V G 12V POWER IN SERIAL I O SE DIFF AG H L AG H L AG H L AG G G E1 E2 1 2 3 1 2 3 4 5 6 G 5V 5V P1 P2 C8 C7 C6 C5 C4 C3 C2 C1 CONTROL 12V SWITCHED TIP RING GND CAMPBELL SCIENTIFIC INC COM200 MODEM MADE IN USA S N 10...

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