Campbell COM220 Instruction Manual - 2.  Specifications

Other manuals for COM220: Instruction Manual, Instruction Manual
Manual is about: Telephone Modem

Summary of COM220

  • Page 1

    Instruction manual com220 telephone modem revision: 3/15 c o p y r i g h t © 1 9 9 7 - 2 0 1 5 c a m p b e l l s c i e n t i f i c , i n c ..

  • Page 3: Limited Warranty

    Limited warranty “products manufactured by csi are warranted by csi to be free from defects in materials and workmanship under normal use and service for twelve months from the date of shipment unless otherwise specified in the corresponding product manual. (product manuals are available for review ...

  • Page 4: Assistance

    Assistance products may not be returned without prior authorization. The following contact information is for us and international customers residing in countries served by campbell scientific, inc. Directly. Affiliate companies handle repairs for customers within their territories. Please visit www...

  • Page 5: Precautions

    Precautions danger — many hazards are associated with installing, using, maintaining, and working on or around tripods, towers, and any attachments to tripods and towers such as sensors, crossarms, enclosures, antennas, etc. Failure to properly and completely assemble, install, operate, use, and mai...

  • Page 7: Table Of Contents

    Table of contents pdf viewers: these page numbers refer to the printed version of this document. Use the pdf reader bookmarks tab for links to specific sections. 1. Introduction ................................................................. 1 1.1 general description .................................

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    Table of contents figures 1-1. Com220 dip switches. Five screws and outer cover must be removed for access to dip switches. ............................................... 1 1-2. Com220 .............................................................................................. 2 3-1. Cr1000 and c...

  • Page 9: Com220 Telephone Modem

    Com220 telephone modem 1. Introduction 1.1 general description the com220 modem is a selectable-baud-rate modem employing the hayes at command set. Its primary use is as a remote-site phone modem connected to a csi datalogger. The modem is powered and enabled by the battery- powered datalogger. When...

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    Com220 telephone modem table 1-1. Default dip switch settings dip switch default setting 1 closed 2 open 3 closed 4 closed 5 open 6 open 7 open 8 open the com220 is connected to a csi datalogger by a 9-pin subminiature d cable. This is the same 9-pin cs i/o interface common to all campbell scientifi...

  • Page 11: 2.  Specifications

    Com220 telephone modem 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 com220. The computer’s modem must be configured to the proper settings using a set of modem-initialization strings ...

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    Com220 telephone modem 14-awg ground wire (green with yellow stripe, if provided by csi) table 3-1. Dataloggers that require direct 12-vdc connection to com220 cr10(x) with silver wiring panel cr10(x) with black cr10 wiring panel (pn 8032) 21x(l) — serial number 13,442 or lower cr500  serial number...

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    Com220 telephone modem figure 3-2. Cr10x with cr10 wiring panel and com220 using rj11c telephone jack 3.2 connecting to earth ground connect the 14-awg grounding wire (green with yellow stripe, provided with the com220) to the ground terminal (gnd) on the com220 and to the enclosure’s earth ground c...

  • Page 14

    Com220 telephone modem 3.3 loggernet setup • in the loggernet setup screen, press add root and choose comport. From the comport, select communications, and add a phonebase, a phoneremote, a pakbusport (if your datalogger is a pakbus datalogger), and your datalogger. • click on the comport in your ne...

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    Com220 telephone modem • press apply to save your changes. 3.4 telephone to md485 or telephone to rf systems telephone-to-md485 or telephone-to-radio configurations can be utilized for communicating with multiple dataloggers through one telephone line. For telephone-to-md485 or telephone-to-radio co...

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    Com220 telephone modem 3.6 connecting to a surge protector campbell scientific offers two surge protectors (pn 4330 and 6362). The 4330 and 6362 are essentially the same, except that the 6362 has hardware for mounting to an enclosure backplate. The 4330 is also known as the 2374-01. The 4330 and 636...

  • Page 17: 4.  Modem Settings

    Com220 telephone modem figure 3-4. Side view of surge-suppressor wiring 4. Modem settings the com220 is shipped from the factory with default settings that support pakbus dataloggers (such as the cr800, cr1000, cr3000, and cr10xpb). The modem comes configured for synchronous device communication (sd...

  • Page 18: 5.  Troubleshooting

    Com220 telephone modem some of the at command settings that may be changed are: disable auto-answer: this option is used only when the modem is not to answer a call. For example, the com220 is connected to a telephone line that is to be used partly for voice communication. In this situation, it is b...

  • Page 19

    Com220 telephone modem enable auto-bauding in the datalogger. If the datalogger baudrateme is positive (due to an earlier program instruction or status table configuration), the datalogger will be unable to communicate with the com220 unless baud rates happen to match. A good rule of thumb is to kee...

  • Page 20

    Com220 telephone modem to comply with fcc rules and regulations, all repairs on the com220 modem must be performed by campbell scientific, inc. Or an authorized agent of campbell scientific, inc. For assistance in installation or troubleshooting or for repairs, contact campbell scientific: campbell ...

  • Page 21: Settings

    Appendix a. Changing com220 settings changing any of the modem’s settings may result in communication problems. After changing the settings, try the modem locally before installing it at a remote location. To speed problem resolution when contacting campbell scientific for support, please inform us ...

  • Page 22: A.2  Hayes At Commands

    Appendix a. Changing com220 settings table a-1. Selecting me baud rates via dip switches 3 and 4 me baud rate switch 3 switch 4 9600 open open 38400 open closed 57600 closed open 115200 closed closed please note that older dataloggers (such as the cr10x, cr23x, and cr510) cannot support the highest ...

  • Page 23

    Appendix a. Changing com220 settings figure a-1. Com220 to computer connection to configure the com220 with hayes at commands, follow these steps: 1) close dip switch 8 on the com220 (power to the com220 must be cycled for about 5 sec before changes to dip-switch settings are effective). 2) you must...

  • Page 24

    Appendix a. Changing com220 settings you must click on the connect button before applying power to the com220. 7) follow the instructions that appear in the terminal emulator screen (figure a-3 ). 8) be sure to save all new commands before exiting (by entering 5 and pressing enter). 9) when finished...

  • Page 25

    Appendix a. Changing com220 settings figure a-3. Terminal emulator screen in device configuration 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 need...

  • Page 26: Com220

    Appendix a. Changing com220 settings m0 speaker always off m1 (default) speaker on during call establishment m2 speak on during entire call session s0=0 disable auto answer s0=1 (default) answer on second ring s0=2 answer on third ring s0=n answer on (n + 1)ring. When doing datalogger-to-datalogger ...

  • Page 27: A.4  Program Examples

    Appendix a. Changing com220 settings figure a-4. Send os screen in device configuration a.4 program examples a.4.1 modemcallback example (for cr1000) the modemcallback instruction is available in the cr1000 with operating system std.12 or greater, in the cr3000 with operating system std.05 or greate...

  • Page 28

    Appendix a. Changing com220 settings a.4.2 dialmodem example (for cr1000) the program below does 2-min callbacks via the com220 configured for sdc7. Dialmodem is set equal to a variable, so that the success/failure result can be used by the enddialsequence instruction. If the call fails, the link wi...

  • Page 29

    Appendix a. Changing com220 settings the com220 can return several possible responses once connected (each terminating in a carriage return): “1” connect “5” connect1200 “10” connect2400 “13” connect9600 “18” connect4800 “20” connect7200 “21” connect12000 “25” connect14400 hence, to work with the co...

  • Page 30

    Appendix a. Changing com220 settings do not put instruction 97 inside a loop or conditional statement; it must be executed each time the table is run. In the example below, the program does two minute data callbacks via the com220 phone modem. Edit instruction 13 with your pc’s (loggernet’s) phone n...

  • Page 31

    Appendix a. Changing com220 settings 13: extended parameters (p63) ;7-digit phone number 1: 5 option 2: 5 option 3: 5 option 4: 1 option 5: 2 option 6: 1 option 7: 2 option 8: 13 option ;13 is the termination character; always place after phone number end program a.4.4 example programs for data call...

  • Page 32

    Appendix a. Changing com220 settings remote datalogger program for cr1000: 'remote program for 2-min data callbacks via dl router with rf401 or md485 link and com220 link 'datalogger router pakbusadddress = 2 'loggernet server pakbusaddress = 4094 'replace dialmodem phone number with your pc's phone...

  • Page 33

    Appendix b. Cs i/o connection b.1 cs i/o 9-pin connection the pinout of the connector is shown in figure b-1 . The direction of the signal relative to the modem is shown in parentheses. Unless specified otherwise, all levels are 0 v for logic low, 5 v for logic high. Figure b-1. Cs i/o pinout 1. (in...

  • Page 34

    Appendix b. Cs i/o connection b-2.

  • Page 35: C.1  Theory Of Operation

    Appendix c. Theory of operation c.1 theory of operation the com220 modem is used to transmit data over bandwidth-limited channels such as telephone lines by modulating audio tones. The com220 uses various modulation schemes including fsk (frequency shift keying), tcm (trellis coded modulation), qam ...

  • Page 36

    Appendix c. Theory of operation c-2.

  • Page 37: Class B Computing Devices

    Appendix d. Fcc warning to users of class b computing devices this equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with t...

  • Page 38

    Appendix d. Fcc warning to users of class b computing devices d-2.

  • Page 39: Cp-01, Issue 8, Part I

    Appendix e. Ic information industry canada (ic) was formerly known as doc. Cp-01, issue 8, part i section 14.1 “notice: the industry canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety re...

  • Page 40

    Appendix e. Ic information e-2.

  • Page 42

    Campbell scientific companies campbell scientific, inc. (csi) 815 west 1800 north logan, utah 84321 united states www.Campbellsci.Com • info@campbellsci.Com campbell scientific africa pty. Ltd. (csaf) po box 2450 somerset west 7129 south africa www.Csafrica.Co.Za • cleroux@csafrica.Co.Za campbell sc...