RAD Data comm ASM-20 operation manual Warranty

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Warranty

This RAD product is warranted against defects in material and workmanship for a period of one year from date of shipment. During the warranty period, RAD will, at its option, either repair or replace products which prove to be defective. For warranty service or repair, this product must be returned to a service facility designated by RAD. Buyer shall prepay shipping charges to RAD and RAD shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges, duties and taxes for products returned to RAD from another country.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer, Buyer-supplied firmware or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation or maintenance.

Exclusive Remedies

The remedies provided herein are the Buyer’s sole and exclusive remedies. RAD shall not be liable for any direct, indirect special, incidental, or consequential damages, whether based on contract, tort, or any legal theory.

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Contents RAD data communications Headquarters US East US West ASM-20Page Warranty Ports Safety Status Safety WarningsRegulatory Information Supplementary Information SafetyINT or EXT and the other modem RCV LBT Installing and Operating ASM-20Adjust the jumpers. See , Installation and Setup Quick-Start GuidePreface Conventions Contents Troubleshooting and Diagnostics List of Figures List of Tables Chapter Introduction OverviewApplications Following DTE interface options are available DTE interfaceFront Panel Physical DescriptionFunctional Description CDD conditional diphase modulation techniqueAsync to Sync Converter Technical Specifications Unloaded twisted pair 19 to 26 AWGRange See Table Level Timing Elements Digital Interface DiagnosticsWeight 290 gm / 10.1 oz PowerRed Bit errors Err Yellow Power Supply 115 or 230 V 10% 47 to 63 Hz 5WBaud 19 AWG 22 AWG 24 AWG 26 AWG Rate Approximate RangeIntroduction Technical Specifications Chapter Installation and Setup IntroductionSite Preparation and Prerequisites Package Contents Mechanical InstallationElectrical Installation ASM-20 X.21 Rear Panel Strap Selection Setting Internal Jumpers SwitchesX.21, one of the modems should be set to RCV clock PCB Layout DiagramJumper Function Possible Factory Switch Identity Settings ASM-20 Strap Selection SettingsStart Bit Data Bits Parity Stop Bit No. of Bits Power Connection Installation and Setup Electrical Installation ASM-20 Controls and IndicatorsChapter Operation GeneralName Type Function Control and Indicator FunctionsOperating Instructions Power On ProcedureActivation of Tests Operational Jumper Switch Changes Power OffProcedure ASM-20 ASM-20-2 Chapter Troubleshooting DiagnosticsFrequently Asked Questions Differences in VersionsBit Error Rate Tester Bert Loop Tests ProcedureBert Using Loops Local Test Analog Loopback Modem Self TestRemote Digital Loopback Communication Link TestsRemote ASM-20 in Digital Loopback Local Digital LoopbackASM-MN-214 Card Cage Chapter Card Cage VersionASM-MN-214 Rear Panel ASM-20/R Card VersionAC Supply 100, 115 or 230 VAC DC Supply -48 VDC Power SupplyASM-MN-214 Front Panel Power Supply with RedundancyInstallation Card Cage Version Installation Description Appendix a Ethernet InterfaceSignal Pin DB-25 RJ-45 IR-ETH Connector OptionsEthernet Bridge Specifications Installation and OperationGeneral Option Other devices do notDescription Location Color Name Table A-3 IR-ETH Bridge LED IndicatorsAppendix A. Ethernet Interface Installation and Operation General Description Appendix B IR-G.703 Codirectional Interface 64 kbpsFigure B-2 Location of JP1 on the IR-G.703 Interface Module EXT ModeINT/RCV Mode Modem BOdem a Odem B Page Figure C-1 Typical ASM-20 X.21 Application Appendix C IR-X.21B Interface ModuleTable C-1 IR-X.21B DB-15 RS-422 Connector Pin Assignment Interface module $87,21 25&21,18Pin Function Position IR-X.21B Interface ModuleFigure C-4 EXT Mode Timing Block Pin Circuit Function Appendix D DTE Interface ConnectorsRTS Signal General 13/4/99 Signal Function RS-449 RS-422/423 EIA Pins Appendix E Connection to RS-422Pin Circuit Appendix E. Connection to RS-422 Unit Case Appendix F Unit Case AssemblyInstallation of the Unit Case into a 19 Rack Installation of a Single UnitFigure F-1 Installation of a Single Unit Installation of Two UnitsAppendix F. Unit Case Assembly Figure F-3 Installation of Two Units