Related Manuals for Data-Linc Group LCM100
Summary of Contents for Data-Linc Group LCM100
- Page 1 UIDE LCM100 Line Carrier Modem It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment. Get other manuals https://www.bkmanuals.com...
- Page 2 Product User Guide FCC Information Appropriate FCC info PN 161-xxxxx-001A DATA-LINC GROUP Get other manuals https://www.bkmanuals.com...
- Page 3 RF current, static discharge and interference from fluorescent lamps. The LCM100 system is designed to operate with a reference ground located at the power distribution panel. Reference ground is usually connected to the copy ground bus or to the distribution panel frame.
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Page 4: Troubleshooting
The LCM100 has integral surge protection. Note: The LCM100 should not be plugged into isolator or surge protector devices as this may cause signal degradation. If Detect indicators do not illuminate with both units connected to line power, a coupling capacitor may be required for cross-phase communication (see appendix B). - Page 5 DATA-LINC GROUPp LCM100 User’s Guide Communication Failure Carrier Detect RS-232C Input Modulator/Oscillator Failure Failure Power Indicator Off Receiver Signal Modulator Cable/CNX Circuitry Coupler Oscillator Failure Failure Failure Failure Circuit Breaker Open Fuse Power Breaker Blows Fails Open Fault Tree Legend...
- Page 6 Data-Linc Group, transportation prepaid. Return Material Authorization If a part needs to be sent to the factory for repair, contact Data-Linc Group’s corporate office and request a Return Material Authorization (RMA) number. The RMA number identifies the part and the owner and must be included with the part when shipped to the factory.
- Page 7 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 10Ma and have a typical turn-on threshold of +1.25 volts and a turn-off threshold of +0.8 volts.
- Page 8 Notes 1. On the LCM100-1 module pin 8 is not carried at the connector through P3 because most computers provide this signal. Pin 8 may be carried to the connector, if desired. 2. On the LM100-2 module, the carrier detect signal is available at the connector because the interconnected equipment is receiving a signal.
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Page 9: Appendix B Line Conditioning
DATA-LINC GROUPp 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 connected to the line. Motors and transformers, for example, may have very high distributed capacitance. -
Page 10: Appendix C System Block Diagram
DATA-LINC GROUPp LCM100 User’s Guide Appendix C System Block Diagram Data Communications Data Terminal Equipment Equipment RS-232C RS-232C LCM100-1 Interface LCM100-2 Interface DB-25P DB-25P Connectors Connectors w/Cable w/Cable Frequency Lowband Data Data Data Data Pin 2 Modulator Receiver/ Pin 2...