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COM200A Telephone Modem 3/99 C o p y r i g h t ( c ) 1 9 9 7 - 1 9 9 9 C a m p b e l l S c i e n t i f i c ,...
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CAMPBELL SCIENTIFIC, INC. CAMPBELL SCIENTIFIC, INC. will return such products by surface carrier prepaid. This warranty shall not apply to any CAMPBELL SCIENTIFIC, INC. products which have been subjected to modification, misuse, neglect, accidents of nature, or shipping damage. This warranty is in lieu of all other warranties, expressed or implied, including warranties of merchantability or fitness for a particular purpose.
COM200A ..........................2 CR10X with CR10X Wiring Panel and COM200A Using Remote Telephone Line....3 CR10X with CR10 Wiring Panel and COM200A Using RJ11C Telephone Jack .......4 COM200A to Computer Connection ..................A-1 COM200A to Computer Connection with 10704 Adaptor ............A-2...
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TABLES Dataloggers that Require Direct 12 VDC Connection to COM200A ..........2...
• Current drain: 120 µA quiescent, 140 mA connector. active The COM200A can be used as an originate modem at the datalogger site. To originate a • Direct connection to and powered by CSI call to the computer, the datalogger is dataloggers programmed using Instruction 97.
12 VDC and ground need to be connected via the green power connector on 3.4 TELEPHONE SERVICE the side of the COM200A (see Figure 3). Table The goal of the telephone company is to provide 1 lists the Campbell Scientific dataloggers that you with the best service it can.
0002 MADE IN USA REN = 0.5 Blue = Ring Burial Phone Cable Blue/White = Tip Phone Line To Earth Ground Transient Protector (Model 6362 or 2372-01) FIGURE 2. CR10X with CR10X Wiring Panel and COM200A Using Remote Telephone Line...
A M O D E S /N 0 0 0 2 M A D E IN U S A R E N = 0. 5 Telephone Wall Jack FIGURE 3. CR10X with CR10 Wiring Panel and COM200A Using RJ11C Telephone Jack...
For example, the COM200A is sharing a line with 5) Verify the COM200A is receiving 12 VDC. If the COM200A is receiving 12 VDC from a people at an office. It can be programmed to...
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Bell 212A (U.S. and Canada) system to a CCITT V.32 (foreign, 9600 baud) or CCITT V.22 (foreign, 1200 baud) system. This does not mean that the COM200A is tested and approved for all foreign countries. CCITT is an international consultative committee that sets international communications usage standards.
APPENDIX A. MODIFYING THE NON-VOLATILE MEMORY To modify the COM200A’s settings, one must communicate directly to the COM200A. This may be accomplished by using one of the two methods below. CAUTION: Changing some 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.
S/ N 0 0 0 2 10704 Adaptor MA DE IN US A RE N = FIGURE A-2. COM200A to Computer Connection with 10704 Adaptor Example Program 1 3: Extended Parameters (P63) Option ;O Option ;D *Table 1 Program Option ;T...
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It is possible in some conditions to allow more than four rings. Consult a Campbell Scientific applications engineer about optimizing modem negotiations before trying this and be sure to try the set up locally before...
3. (output) Ring - a logic high signifies a ring signal has been detected 4. (output) RX Data - serial data from COM200A 5. (input) Modem Enable - a logic high internally switches power to the modem. A logic low internally shuts off power to the modem.
APPENDIX C. THEORY OF OPERATION C.1 THEORY OF OPERATION The COM200A modem is used to transmit data over bandwidth-limited channels such as telephone lines by modulating audio tones, using Phase Shift Keying (PSK) at 9600 or 1200 baud and Frequency Shift Keying (FSK) at 300 baud.
APPENDIX D. AUSTEL MODEM WARNING NOTICE Modems connected to the Australian telecommunications network must have a valid AUSTEL permit. This modem has been specifically configured to ensure compliance with AUSTEL Standards. Do not adjust your modem or software outside the values indicated below. To do so would result in your modem being operated in a non-compliant manner.
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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 sales@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA)
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