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Omron LCM100 manual

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Table of contents for the manual

  • Page 1

    U SER G UIDE I NDUSTRIAL D ATA C OMMUNICA TIONS It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment. Line Carrier Modem LCM100[...]

  • Page 2

    DA T A-LINC GROUP PN 161-xxxxx-001A Product User Guide FCC Information Appropriate FCC info[...]

  • Page 3

    DA T A- L I N C GROUP p LCM100 User’s Guide LCM100 Line Carrier Modem Introduction In the line carrier system, the hot line supplies current to connected loads and is a lso used as a carrier for data communication between modules. The Data-Linc LCM100 can communicate over the same line in a 240 volt single phase system or on any individual phase [...]

  • Page 4

    DA T A- L I N C GROUP p LCM100 User’s Guide Note: If a three-to-two-wire adapter is used to connect to a two-wire AC outlet, the ground lead of the adapter must be connected to earth ground to complete the ground system. An open ground connection may cause a communications defect and/or shock hazard. Line conditioners in the form of isolators, re[...]

  • Page 5

    DA T A- L I N C GROUP p LCM100 User’s Guide Communication Failure C a r r i e r D e t e c t O f f RS-232C Input Modulator/Oscillator Failure Failure P o w e r Indicator Off Receiver Signal Modulator Cable/CNX Circuitry Coupler Oscillator Failure Failure Failure Failure C i r c u i t B r e a k e r Open Fuse Power Breaker Blows Fails Open Fault Tre[...]

  • Page 6

    DA T A- L I N C GROUP p LCM100 User’s Guide LCM100 Technical Specifications Power requirements 120 volts at +/- 10%, 50- 60 Hz, 4.5 watts. Power is on when module(s) are con nected Data Rate Up to 9600 baud Data Formats Any serial asynchronous format up to 9600 ba ud Operation Full Duplex Receive Sensitivity 20 millivolts Transmit Level 250mW int[...]

  • Page 7

    DA T A- L I N C GROUP p LCM100 User’s Guide Appendix A RS-232 Connector Pin Assignments Both modules of the LCM100 have female DB-25 connectors which can be directly connected to DTE and DCE equipment. All output levels are a minimum of +6 volts when active and a maximum of –6 volts when inactive, measured in a 3k ohm load. Inputs will sink 10M[...]

  • Page 8

    DA T A- L I N C GROUP p LCM100 User’s Guide Connector J2 (Female) Please note that male pin numbering is a mirror image of the female connector depicted below: 13 12 11 10 9 8 7 6 5 4 3 2 1 25 24 23 22 21 20 19 18 17 16 15 14 Figure 3: DB-25P J2 Connector Pins J2 Pin Description 9-19 Pins 9-19 are unused, open. 20 Data Terminal Ready Data Termina[...]

  • Page 9

    DA T A- L I N C GROUP p LCM100 User’s Guide Appendix B Line Conditioning In some industrial installations, power lines must be conditioned to prevent the FSK signal from being shunted by distributed capacitance possibly associated with other loads conne cted to the line. Motors and transformers, for example, may have very high distributed capacit[...]

  • Page 10

    DA T A- L I N C GROUP p LCM100 User’s Guide Appendix C System Block Diagram Data T erminal Equipment RS-232C Interface DB-25P Connec tors w/Cab le Pin 2 LCM 100-2 Data Communicatio ns Equipment RS-23 2C Int erfa ce DB-25P Connec tors w/Cable Pin 2 Data Out Data In LCM100-1 Data In Data Out Frequency Modulator Lowb and Oscillat or Carrier Detect C[...]