RAD Data comm ASM-20 specification

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RAD Data comm ASM-20 operation manual

Contents

ASM-20 RAD data communications Headquarters US East US WestPage Warranty Safety Warnings Ports Safety Status Regulatory Information Safety Supplementary Information Quick-Start Guide Installing and Operating ASM-20Adjust the jumpers. See , Installation and Setup INT or EXT and the other modem RCV LBT Preface Conventions Contents Troubleshooting and Diagnostics List of Figures List of Tables Applications Chapter IntroductionOverview DTE interface Following DTE interface options are available Physical Description Front Panel CDD conditional diphase modulation technique Functional Description Async to Sync Converter Range See Table Level Technical SpecificationsUnloaded twisted pair 19 to 26 AWG Digital Interface Diagnostics Timing Elements Power Supply 115 or 230 V 10% 47 to 63 Hz 5W PowerRed Bit errors Err Yellow Weight 290 gm / 10.1 oz Approximate Range Baud 19 AWG 22 AWG 24 AWG 26 AWG Rate Introduction Technical Specifications Site Preparation and Prerequisites Chapter Installation and SetupIntroduction Electrical Installation Package ContentsMechanical Installation Strap Selection Setting Internal Jumpers Switches ASM-20 X.21 Rear Panel PCB Layout Diagram X.21, one of the modems should be set to RCV clock ASM-20 Strap Selection Settings Jumper Function Possible Factory Switch Identity Settings Start Bit Data Bits Parity Stop Bit No. of Bits Power Connection Installation and Setup Electrical Installation General Controls and IndicatorsChapter Operation ASM-20 Control and Indicator Functions Name Type Function Power On Procedure Operating Instructions Procedure Activation of Tests Operational Jumper Switch ChangesPower Off Differences in Versions Chapter Troubleshooting DiagnosticsFrequently Asked Questions ASM-20 ASM-20-2 Loop Tests Procedure Bit Error Rate Tester Bert Bert Using Loops Modem Self Test Local Test Analog Loopback Communication Link Tests Remote Digital Loopback Local Digital Loopback Remote ASM-20 in Digital Loopback Chapter Card Cage Version ASM-MN-214 Card Cage ASM-20/R Card Version ASM-MN-214 Rear Panel Power Supply AC Supply 100, 115 or 230 VAC DC Supply -48 VDC Power Supply with Redundancy ASM-MN-214 Front Panel Installation Card Cage Version Installation Appendix a Ethernet Interface Description IR-ETH Connector Options Signal Pin DB-25 RJ-45 General Ethernet Bridge SpecificationsInstallation and Operation Other devices do not Option Table A-3 IR-ETH Bridge LED Indicators Description Location Color Name Appendix A. Ethernet Interface Installation and Operation Appendix B IR-G.703 Codirectional Interface 64 kbps General Description EXT Mode Figure B-2 Location of JP1 on the IR-G.703 Interface Module Odem a Odem B INT/RCV ModeModem B Page Appendix C IR-X.21B Interface Module Figure C-1 Typical ASM-20 X.21 Application Pin Function Table C-1 IR-X.21B DB-15 RS-422 Connector Pin AssignmentInterface module $87,21 25&21,18 IR-X.21B Interface Module Position Figure C-4 EXT Mode Timing Block Appendix D DTE Interface Connectors Pin Circuit Function RTS Signal General 13/4/99 Pin Circuit Signal Function RS-449 RS-422/423 EIA PinsAppendix E Connection to RS-422 Appendix E. Connection to RS-422 Installation of a Single Unit Appendix F Unit Case AssemblyInstallation of the Unit Case into a 19 Rack Unit Case Installation of Two Units Figure F-1 Installation of a Single Unit Appendix F. Unit Case Assembly Figure F-3 Installation of Two Units