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ASM-20 Synchronous/Asynchronous Short Range Modem Installation and Operation Manual Notice This manual c ont ai ns i nfor mation that is prop rietary to RA D D at a Communi cati ons. No part of this p u blicat io n m ay b e r e p r od u ce d in an y fo r m wh at so e ver wit h ou t p r ior wr it t e n ap p r o val by R AD Dat a Communications.
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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.
Safety Warnings The exclamation point within a triangle is intended to warn the operator or service personnel of operation and maintenance factors relating to the product and its operating environment which could pose a safety hazard. Always observe standard safety precautions during installation, operation and maintenance of this product.
Regulatory Information FCC-15 User Information This equipment has been tested and found to comply with the limits of the Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Declaration of Conformity Manufacturer’s Name: RAD Data Communications Ltd. Manufacturer’s Address: 12 Hanechoshet St. Tel Aviv 69710 Israel declares that the product: Product Name: ASM-20 Conform.
20/4/99 11:47 Installing and Operating ASM-20 1 Quick-Start Guide 1 . Installing and Operating ASM-20 If you are familiar with ASM-20, use this guide to prepare it for operation. Perform the following steps for both the local and the remote units. 1. Disconnect all cables from the units.
Preface Foreword This manual provides information on the technical characteristics, installation and operating instructions of ASM-20. The manual contains the following information: Chapter 1. Introduction describes ASM-20 and its applications, features, options, physical and functional descriptions and technical specifications.
Conventions Note A note draws attention to a general rule for a procedure, or to exceptions to a rule. Caution A caution warns of possible damage to the equipment if a procedure is not followed correctly.
ASM-20 Installation and Operation Manual i Contents CHAPTER 1 INTRODUCTION 1.1 Overview ................................................................................................................... .... 1-1 Applications .........................
Contents ii ASM-20 Installation and Operation Manual 3.2 Controls and Indicators ................................................................................................... 3 -1 3.3 Operating Instructions ......................................
ASM-20 Installation and Operation Manual iii List of Figures Figure 1-1 Point-to-point Application ........................................................................................ ... 1-1 Figure 1-2 G.703 Modem Link Application ...............
ASM-20 Installation and Operation Manual iv List of Tables Table 1-1 Approximate Range ....................................................................................................... 1-9 Table 2-1 ASM-20 Strap Selection Settings ..............
6/4/99 13:10 Overview 1 - 1 Chapter 1 Introduction 1 . 1 Overview The ASM-20 Short Range Modem operates synchronously or asynchronously at full or half duplex, over unconditioned lines. ASM-20 has a range of up to 23 km (14 miles) and operates at selectable data rates from 19.
Chapter 1. Introduction ASM-20 Installation and Operation Manual 1 - 2 Overview 6/4/99 13:10 G. 70 3 DI G I T AL SERVI C E NETWORK ASM - 20 EXT C LK ASM - 20 RCV CL K RAD RAD Te r m i n a l ASM - 20 EXT C LK ASM - 20 RCV CL K RAD RAD DT E Figure 1- 2 G.
ASM-20 Installation and Operation Manual Chapter 1. Introduction 6/4/99 13:10 Physical Description 1 -3 Connection to an RS-449/V.36 interface is accomplished via the RS-530 interface (see Appendix A, Ethernet Interface ). ASM-20 incorporates a built-in Bit Error Rate Tester (BERT).
Chapter 1. Introduction ASM-20 Installation and Operation Manual 1 -4 Functional Description 6/4/99 13:10 GND RCV XM T DTE 100 - 1 1 5 V A C -0 .2 A T 2 5 0 V ~ 2 3 0 V / 0 .
ASM-20 Installation and Operation Manual Chapter 1. Introduction 6/4/99 13:10 Functional Description 1 -5 Modulation Timing This circuit supplies the transmit clock to the encoder. Three clock sources are available: • Internal oscillator • External from the DTE • Loop clock derived from the receive signal.
Chapter 1. Introduction ASM-20 Installation and Operation Manual 1 -6 Technical Specifications 6/4/99 13:10 characters. The remote converter will add a shorter stop bit (shorter by 12.
ASM-20 Installation and Operation Manual Chapter 1. Introduction 6/4/99 13:10 Technical Specifications 1 -7 Digital Interface Type • V.24/RS-232 via 25-pin D-type, (up to 64 kbps only), female connector • V.35 via 34-pin female connector • X.21 via 15-pin D-type female connector • RS-530 (RS-422) via 25-pin D-type female connector • V.
Chapter 1. Introduction ASM-20 Installation and Operation Manual 1 -8 Technical Specifications 6/4/99 13:10 Indicators Power PWR (green) Request to Send RTS (yellow) Transmit Data TD (yellow) Receive .
ASM-20 Installation and Operation Manual Chapter 1. Introduction 6/4/99 13:10 Technical Specifications 1 -9 Table 1- 1 Approximate Range Baud Rate 19 AWG (0.8 mm) 22 AWG (0.6 mm) 24 AWG (0.5 mm) 26 AWG (0.4 mm) kbps km miles km miles km miles km miles 256 3.
Chapter 1. Introduction ASM-20 Installation and Operation Manual 1-10 Technical Specifications 6/4/99 13:10.
11/4/99 14:09 Site Preparation and Prerequisites 2 -1 Chapter 2 Installation and Setup 2 . 1 Introduction This chapter provides instructions for mechanical and electrical installation of the ASM-20 standalone model. For rack installation of the ASM-20, see Chapter 5, Card Cage Version .
Chapter 2. Installation and Setup ASM-20 Installation and Operation Manual 2 -2 Electrical Installation 11/4/99 14:09 2 . 3 Package Contents The ASM-20 package includes the following items: • ASM-2 0 • AC cord • 48 VDC plug (optional) • Adapter cable for the different interfaces (optional) • AS M-20 Installation and Operation Manual.
ASM-20 Installation and Operation Manual Chapter 2. Installation and Setup 11/4/99 14:09 Electrical Installation 2- 3 ~230 V AC -1A T 250V DTE X.21 Line C on nect or Figure 2- 2 A S M -20 - X.21 Rear Panel Strap Selection Before connecting power to the unit, determine the required configuration of ASM-20 and position the straps accordingly.
Chapter 2. Installation and Setup ASM-20 Installation and Operation Manual 2 -4 Electrical Installation 11/4/99 14:09 BAUD RA TE kbps IN T EXT RC V ASY XMT CL K CH ASS DI S CON RTS-CTS DL Y ( m s) 0 9 70 0 - 256 1 - 192 2 - 144 3 - 128 4 - 1 15.2 5 - 1 12 6 - 96 7 - 72 8 - 64 9 - 57.
ASM-20 Installation and Operation Manual Chapter 2. Installation and Setup 11/4/99 14:09 Electrical Installation 2- 5 Table 2- 1 ASM -20 Strap Selection Settings Jumper and Switch Identity Function Possible Settings Factory Setting J1 V54 DIS Prevents activation of remote V.
Chapter 2. Installation and Setup ASM-20 Installation and Operation Manual 2 -6 Electrical Installation 11/4/99 14:09 Table 2 - 1 ASM -20 Strap Selection Settings (Cont.
ASM-20 Installation and Operation Manual Chapter 2. Installation and Setup 11/4/99 14:09 Electrical Installation 2- 7 Power Connection AC power is supplied to ASM-20 through a standard 1.5 m (5 ft) detachable power cord terminated by a standard 3-prong plug.
Chapter 2. Installation and Setup ASM-20 Installation and Operation Manual 2 -8 Electrical Installation 11/4/99 14:09.
6/4/99 13:13 Controls and Indicators 3- 1 Chapter 3 Operation 3 . 1 General This chapter: • Describes the controls and indicators of ASM-20 and their functions • Explains the operation procedures • Provides jumper and switch information.
Chapter 3. Operation ASM-20 Installation and Operation Manual 3- 2 Controls and Indicators 6/4/99 13:13 PW R 1 2 3 4 5 A E B C D 7 RT S TD DCD TE ST DI G ANA PAT T ERR RPF ASM - 2 0 Figure 3- 2 ASM -2.
ASM-20 Installation and Operation Manual Chapter 3. Operation 6/4/99 13:13 Operating Instructions 3- 3 Table 3- 1 Control and Indicator Functions (Cont.) Item Name Type Function E RPF RESET Pushbutton Resets ERR/RPF LED (only available in ASM -20/R). 1 PWR LED Indicator Green LED is on when power is on.
Chapter 3. Operation ASM-20 Installation and Operation Manual 3 -4 Operating Instructions 6/4/99 13:13 Activation of Tests In order to verify that the ASM-20 is operating correctly, use the internal BERT and analog loopback tests as described in Bit Error Rate Tester (BERT) in Chapter 4 and Local Test - Analog Loopback in Chapter 4 .
11/4/99 12:34 Frequently Asked Questions 4 - 1 Chapter 4 Troubleshooting and Diagnostics 4 . 1 General This chapter contains procedures for performing system diagnostic tests for AS M-20. Use the test procedures provided in this chapter to: • Verify normal system operation • Isolate faulty equipment in the event of failure.
Chapter 4. Troubleshooting and Diagnostics ASM-20 Installation and Operation Manual 4 - 2 Bit Error Rate Tester (BERT) 11/4/99 12:34 Table 4- 1 Differences in Versions (Cont.
ASM-20 Installation and Operation Manual Chapter 4. Troubleshooting and Diagnostics 11/4/99 12:34 Bit Error Rate Tester (BERT) 4 - 3 PAT T Pr ess ed P a tte rn Gener a t or P a tte rn Te s t e r E rro r XM T RCV ASM - 20 Figure 4- 1 BERT Using Loops Alternatively, the complete link can be tested when using two ASM-20 modems or an external BERT.
Chapter 4. Troubleshooting and Diagnostics ASM-20 Installation and Operation Manual 4 -4 Local Test - Analog Loopback 11/4/99 12:34 4 . 5 Modem Self Test The modem self test verifies that ASM-20 is operating correctly. To verify that ASM-20 is operating correctly: 1.
ASM-20 Installation and Operation Manual Chapter 4. Troubleshooting and Diagnostics 11/4/99 12:34 Communication Link Tests 4 -5 To check the performance of the local modem and the local data terminal: 1. Press the ANA (Analog Loopback) push button on the front panel (see Figure 3- 1 ).
Chapter 4. Troubleshooting and Diagnostics ASM-20 Installation and Operation Manual 4 -6 Communication Link Tests 11/4/99 12:34 3. If Step 2 indicates a fault, and if the modem test described Modem Self Test on page 4- 4 was positive for both the local and remote modems, the line circuits are not operating properly.
11/4/99 12:46 ASM-MN-214 Card Cage 5- 1 Chapter 5 Card Cage Version 5 . 1 General This chapter describes the ASM-20/R card version, designed for installation in the ASM-MN-214 card cage. The chapter contains the following sections: • Section 5.2 describes the ASM-MN-214 card cage • Section 5.
Chapter 5. Card Cage Version ASM-20 Installation & Operation Manual 5- 2 ASM-20/R Card Version 11/4/99 12:46 Figure 5- 1 A S M -MN-214 Rear Panel 5 . 3 ASM-20/R Card Version Figure 5-2 shows the ASM-20/R card front panel. The LEDs and switches of the card version are identical in their functionality to those of the standalone device.
ASM-20 Installation & Operation Manual Chapter 5. Card Cage Version 11/4/99 12:46 Power Supply 5 -3 PW R RTS TD RD DCD TEST DI G ANA REM PAT T ERR RPF ASM - 20 Figure 5- 2 ASM-20/R Front Panel 5 . 4 Power Supply Power is supplied to the ASM-20/R card from the ASM-MN-214 power supply via the chassis.
Chapter 5. Card Cage Version ASM-20 Installation & Operation Manual 5 -4 Installation 11/4/99 12:46 Power Supply with Redundancy This special ordering option is equipped with two separate power supplies, operating together and sharing the load of the whole card cage.
ASM-20 Installation & Operation Manual Chapter 5. Card Cage Version 11/4/99 12:46 Installation 5 -5 5 . 5 Installation To install the ASM-20/R card in the ASM-MN-214 card cage: 1. Install the ASM-MN-214 card cage in the 19" rack. 2. Adjust the jumpers and switches on the card as required (see Table 2-1 and Figure 2-3 in Chapter 2).
Chapter 5. Card Cage Version ASM-20 Installation & Operation Manual 5 -6 Installation 11/4/99 12:46.
6/4/99 13:17 Description A-1 Appendix A Ethernet Interface A . 1 General This appendix: • Describes the IR-ETH for RAD modems • Describes the different IR-ETH connector options • Lists the Ethernet bridge specifications • Explains how to install and operate an Ethernet bridge.
Appendix A. Ethernet Interface ASM-20 Installation and Operation Manual A-2 IR-ETH Connector Options 6/4/99 13:17 A . 3 IR-ETH Connector Options Figure A-2 and Figure A-3 show the rear panel of ASM-20 with the IR-ETH connector options. The IR-ETH connector for the ASM-20/R card (rack mount version) is shown in Figure A-4 .
ASM-20 Installation and Operation Manual Appendix A. Ethernet Interface 6/4/99 13:17 Installation and Operation A-3 A . 4 Ethernet Bridge Specifications General LAN Table 10,000 addresses Filtering and Forwarding 15,000 pps Buffer 256 frames Delay 1 frame LAN Standard Conforms to IEEE 802.
Appendix A. Ethernet Interface ASM-20 Installation and Operation Manual A-4 Installation and Operation 6/4/99 13:17 1 2 3 4 Figure A - 6 Ethernet Bridge Layout (BNC option) LAN Installation For 10BaseT installation, either a straight cable or a cross-cable may be required.
ASM-20 Installation and Operation Manual Appendix A. Ethernet Interface 6/4/99 13:17 Installation and Operation A-5 Table A - 3 IR-ETH Bridge LED Indicators LED Name Description Location Color LINK ON.
Appendix A. Ethernet Interface ASM-20 Installation and Operation Manual A-6 Installation and Operation 6/4/99 13:17.
6/4/99 13:17 General Description B- 1 Appendix B IR-G.703 Codirectional Interface (64 kbps) B. 1 Introduction This appendix: • Provides a general description of the IR-G.703 codirectional interface (64 kbps) • Describes the EXT mode for the IR-G.703 codirectional interface (64 kbps) • Describes the INT/RCV mode for the IR-G.
Appendix B. IR-G.703 Codirectional Interface (64 kbps) ASM-20 Installation and Operation Manual B- 2 EXT Mode 6/4/99 13:17 Figure B - 1 IR-G.703 Connector Options Note In Figure B-1, RCV refers to the input signals to the IR module; XMT refers to the output signals from the module.
ASM-20 Installation and Operation Manual Appendix B. IR-G.703 Codirectional Interface (64 kbps) 6/4/99 13:17 INT/RCV Mode B- 3 This mode corresponds to the modem clock working in the EXT mode.
Appendix B. IR-G.703 Codirectional Interface (64 kbps) ASM-20 Installation and Operation Manual B- 4 INT/RCV Mode 6/4/99 13:17.
6/4/99 13:18 General Description C - 1 Appendix C IR-X.21B Interface Module C . 1 General This appendix: • Provides a general description of the IR-X.21B interface module • Describes the IR-X.21B connectors and pin assignments • Describes the IR-X.
Appendix C. IR- X.21B Interface Module ASM-20 Installation and Operation Manual C- 2 IR-X.21B Interface Module 6/4/99 13:18 C . 3 IR-X.21B Connectors Figure C- 2 shows the rear panel of a standalone ASM-20 with the IR-X.21B interface module. DTE X21 Line Con nect or Figure C- 2 ASM-20 Rear Panel with X.
ASM-20 Installation and Operation Manual Appendix C. IR- X.21B Interface Module 6/4/99 13:18 EXT Mode C -3 C . 4 IR-X.21B Interface Module The IR-X.21B interface module is shown in Figure C- 3 . It has two operation modes which are selectable on the PCB board.
Appendix C. IR- X.21B Interface Module ASM-20 Installation and Operation Manual C -4 INT/RCV Mode 6/4/99 13:18 IR-X.21 FIFO Buffer Transmit Data from DTE External Timing from DTE Receive Data to DTE (Jumpers 2,9) (Jumpers 6,13) (Jumpers 4,11) DB Connector RD RC TC TD MODEM (EXT) Figure C- 4 EXT Mode Timing Block C .
13/4/99 16:40 General D- 1 Appendix D DTE Interface Connectors D.1 . General Table D-1 provides detailed information about each DTE interface connector. Table D - 1 Interface Signal List (Female Connectors) Pins and Standard Signal Names RS-232 V.35 EIA-530 X.
Appendix D. DTE Interface Connectors ASM-20 Installation & Operation Manual D- 2 General 13/4/99 16:40 Table D- 1 Interface Signal List (Female Connectors) Pins and Standard Signal Names (Cont.
ASM-20 Installation & Operation Manual Appendix D. DTE Interface Connectors 13/4/99 16:40 General D- 3 Table D- 1 Interface Signal List (Female Connectors) Pins and Standard Signal Names (Cont.
Appendix D. DTE Interface Connectors ASM-20 Installation & Operation Manual D- 4 General 13/4/99 16:40 Table D- 1 Interface Signal List (Female Connectors) Pins and Standard Signal Names (Cont.
6/4/99 13:20 General E -1 Appendix E Connection to RS-422 E. 1 General Table E-1 provides detailed information for connecting an ASM-20 (EIA 530) to a RS-422 (V.
Appendix E. Connection to RS-422 ASM-20 Installation and Operation Manual E -2 General 6/4/99 13:20 Table E - 1 Interface List for Connecting ASM-20 (EIA 530) to RS -422 (V.
11/4/99 12:26 Installation of the Unit Case into a 19" Rack F- 1 Appendix F Unit Case Assembly F. 1 General This appendix: • Describes the unit case • Describes how to install the unit case into a 19” rack.
Appendix F. Unit Case Assembly ASM-20 Installation and Operation Manual F- 2 Installation of the Unit Case into a 19" Rack 11/4/99 12:26 Shor t Br ack et Faste n i ng Scr ews Lo ng Br ac ke t Fig.
ASM-20 Installation and Operation Manual Appendix F. Unit Case Assembly 11/4/99 12:26 Installation of the Unit Case into a 19" Rack F-3 Shor t Br ack et Le f t- Hand Uni t Ri ght - Hand Uni t Rai l Shor t Br ack et Rai l Figure F -2 Rack Adapter Components for Installation of Two Units To install two units: 1.
Appendix F. Unit Case Assembly ASM-20 Installation and Operation Manual F- 4 Installation of the Unit Case into a 19" Rack 11/4/99 12:26 4. Secure the supplied plastic caps to the ends of the rails, to prevent the units moving and to protect the rail ends.
Een belangrijk punt na aankoop van elk apparaat RAD Data comm ASM-20 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen RAD Data comm ASM-20 heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens RAD Data comm ASM-20 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding RAD Data comm ASM-20 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over RAD Data comm ASM-20 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van RAD Data comm ASM-20 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de RAD Data comm ASM-20 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met RAD Data comm ASM-20 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.