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DC112 MODEM

OPERATOR’S MANUAL

REVISION: 12/91

COPYRIGHT



1987, 1989 CAMPBELL SCIENTIFIC, INC.

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Summary of Contents for DC112

Page 1: ...DC112 MODEM OPERATOR S MANUAL REVISION 12 91 COPYRIGHT 1987 1989 CAMPBELL SCIENTIFIC INC...

Page 2: ...lity 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 obta...

Page 3: ...s connected to a CSI datalogger by using a 9 pin subminiature D connector cable The pinout of the connector is shown in Figure 1 The pins used by the modem are all levels are OV for logic low 5V for l...

Page 4: ...his it may occasionally be necessary for them to make changes in their equipment operations or procedures If these changes might affect your service or the operation of your equipment the telephone co...

Page 5: ...3 Connect the 14 awg grounding wire provided with the DC112 to the grounding terminal GND on the DC112 and to the datalogger ground If the enclosure has a grounded bus bar then connect the ground wire...

Page 6: ...hone company gives a 40 to 150 VRMS 20 Hz signal on the phone lines to signify a ring which is typically on for 2 seconds and off for 4 seconds The ring detection circuitry is continuously powered but...

Page 7: ...gn This does not mean that the DC112 is tested and approved for all foreign countries CCITT is an international consultative committee that sets international communications usage standards V 22 is a...

Page 8: ...command mode COMMANDS AT Prefix to all commands except A A Repeat last command not followed by carriage return D Dial P Pulse T Tone 0 9 Telephone number digits W Wait for another dial tone Return to...

Page 9: ...nications 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 agains...

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