MRV Communications LX-4000 Series manual Typical Interface Design for Control Output Signals

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Alternative Port Capabilities

The states are undefined upwards of 30 Seconds + the Boot Delay Timer value in some configurations, i.e. the signals are non-latching through power cycles.

Note that negative voltage could be present on the interface until the software is completely initialized.

Control Outputs in the LX-Series guarantee ±5.0V drive into a 3K Ohm load.

External loading below 3K Ohm can be tolerated but under no circumstances should the device load the LX-Series output below ±2.5V/7.6mA absolute maximum drive.

A common Signal Ground is required.

The MRV Corporation IR-7104 family can provide true Form C SPDT Relay outputs rated to 30VDC/1A per contact if higher capacity and stable contacts are required through restart and power cycles.

Figure 21 - Typical Interface Design for Control Output Signals

You must change the LX-Series port access type to control to utilize DTR and RTS as the Control Outputs. For example:

InReach:0>> config port async # access control

If you want the DTR signal to be asserted High (positive voltage) on the port:

InReach:0>> control port async # dtr high

Refer to the LX-Series Configuration Guide for a detailed explanation of the commands to set up a port in the Control function.

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MRV Communications, Inc.

www.mrv.com

451-0308

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Contents MRV Americas Service and Support Getting Started with the LX-4000 SeriesCorporate Headquarters MRV America Sales MRV International SalesFCC Notice Bsmi Notice Vcci Notice Licensing Notice451-0308 Table of Contents Appendix C Post Test Error Codes Figures 451-0308 Tables 451-0308 Preface Customer SupportOther Documentation Chapter Overview of the LX-4000 Series ConventionsSystem Specifications DescriptionChapter Installing the LX-4000 Series Hardware InstallationPackage Contents Unpack and Inspect the UnitLX-4000 Indicators and Interfaces Front Panel LEDsRear Panel LEDs Port Status LEDsRCV Link Environmental and Installation Considerations MbpsConnect the Power Cable Connecting the Ethernet InterfaceMounting the Unit into a 19-inch or 23-inch Rack Cable ConnectionsConnect Serial Device Cables Connecting Your Management StationConnecting DC Power Powering On Modem Port OptionalSystem Login and Passwords Resetting the UnitInstalling the LX-4000 Series First Time Quick Configuration Chapter Configuring the LX-4000 Series for the First TimeConfiguring the LX-4000 Unit for the First Time 451-0308 Completing the First Time Configuration Assigning an IP Address via the NetworkManually Setting the IP Address Via the CLI Accessing and Configuring the Graphical User Interface GUIMRV Communications, Inc 451-0308 Web Configure Mode Web Access Mode Menu/Config ModeGUI EZ Configuration Launching the EZConfig GUISoftware Upgrades IP Configuration MenuBooting from Defaults Accessing and Configuring Additional FeaturesAdditional Considerations Command Line Interface CLI Tree Structure Autobauding FeatureReinitializing/Powering Off the Unit Additional Considerations for an Internet EnvironmentChapter Alternative Port Capabilities Sensor Temperature/Humidity PortsConnecting the Temperature/Humidity Sensor Power Management Async 4-40access sensorConnecting ConnectingPower Strip Management Telco Using LX Ports as Alarm Inputs and Control Outputs Alarm Inputs Setup and UsageControl Output Setup and Usage Typical Alarm Inputs ConnectionsTypical Interface Design for Control Output Signals Appendix a Technical Specifications LX-4000 Series Specifications DescriptionLX-4008, LX-4016 Appendix a Technical Specifications Temperature/Humidity Sensor Specifications Description Appendix B Factory Defaults LX-4000 Series Factory Defaults DescriptionPpciboot Factory Default Settings Main Menu Configuration Factory Default SettingAppendix C Post Test Error Codes Error Code Definitions451-0308 Post Test Error Code Sample 3 4 5 6 7 Serial Device Connectors Diagnostic Port Connector PortAppendix D Cabling the LX-4000 Series Cabling Considerations10/100 Connector Modular AdaptersOrdering Cables Pin AssignmentsDB-25 Pins Modem Control/Hardware Flow Control Ordering and Installing the Inlet Connector LockConnecting to the Diagnostic Port Port RJ-45 Wiring Considerations Modular Adapters RJ-45 to DB-25Supports RTS/CTS MRV 8-Wire Cabling Adapter Wiring, LX-Series to DCE, with RingMX-151-3027 LX SeriesNumerics DB-2556, 61 RJ-4561 RJ-45 jacks Index