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Installation and Operation Manual AS M - 2 0 S ynchronous/Asynchronous S hort Range Modem ...
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ASM-20 Synchronous/Asynchronous Short Range Modem Installation and Operation Manual Notice T h i s m a n u a l c o n t a i n s i n f o r m a t i o n t h a t i s p r o p r i e t a r y t o R A D D a t a C o m m u n i c a t i o n s L t d . ( " R A D " ) . N o part of this publication may be reproduced in any form whatsoever without prior wri ...
Limited Warranty RAD warrants to DISTRIBUTOR that the hardware in the A SM-2 0 to be delivered her eunder shall be free of defects in material and workmans hip under no rmal use and service for a period of twelve (12) months following the date of shipment to DISTRIBUTOR. If, during the warranty period, any component part of the equipment becomes d ...
General Safety Instructions The following in structions ser ve as a general guid e for the safe installation and operation of telecommunications products. Addition al i nstructions, if appl icable, are included i nside the manual. Safety Symbols This symbol may appear on the equipment or in the text. It indicates potential safety hazards regarding ...
Handling Energized Products General Safety Practices Do not touch or tamper with the power supply when the power cord is connecte d. Line voltages may be present inside certain product s even wh en the power switch (if installed) is in the OFF position or a fuse is blown. For DC-powered products, alth ough the voltages levels are usua lly not hazar ...
Connection of Data and Telecommunications Cables Data and telecommunicatio n interfaces ar e classified accor ding to th eir safety status. The following table list s the status of several standard in terfaces. If the st atus of a given port differs from the standard one, a no tice will be given i n the manual. Ports Safety Status V.11, V.28, V.35, ...
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cords. Pour réduire les risques s’incendie, utiliser seulement des conducteurs de télécommunications 26 AWG ou de section supérieure. Some ports are suitable for connection to intra-buildin g or non-exposed wiring or cabling only. In such cases, a notice will be ...
Canadian Emission Requirements This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulation. Cet appareil numérique de la classe A respecte to utes les exigences du Règlement sur le matériel brouilleur du Canada. Warning per EN 55022 (CISPR- 22) This is a class A product. In a domestic envir ...
Declaration of Conformity Manufacturer's Name: RAD Data Communications Ltd. Manufacturer's Address: 24 Raoul Wallenberg St. Tel Aviv 69719 Israel declares that the product: Product Name: ASM-20 conforms to the following standard(s ) or other normative document(s): EMC : EN 55022: 1998 Information techno logy equipment, radio disturbance c ...
1 Quick Start Guide If you are fami liar 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. 2. Open the units. 3. Adjust the jumpers. See Chapter 2, Installation and Setup . Make sure that there is only one clock so urce in the applic ...
Quick Start Guide ASM-20 Installation and Operation Manual 2 ...
ASM-20 Installation and Operation Manual i Contents Chapter 1. Introduction 1.1 Overview ..................................................................................................................... 1-1 Applicat ions .......................................................................................................................... 1- ...
Table of Contents ASM-20 Installation and Operation Manual 4.3 Modem Self Test .......................................................................................................... 4-3 4.4 Local Test - An alog Loopback ...................................................................................... 4-3 4.5 Communication L ink Tests ..... ...
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. AS M-20 has a range of up to 23 km (14 mi) and operates at s electable data rates from 19.2 k bps to 256 kbps. ASM-20 uses conditioned diphase modulation (EUROCOM Std. D1) to prov i ...
Chapter 1 Introduction ASM-20 Installation and Operation Manual 1-2 Overview 02-Aug-2005 10:47 G.703 DIGI T A L SERVIC E NETWORK ASM-2 0 EXT CL K ASM-2 0 RCV CLK RAD RAD Te r m i n a l ASM-2 0 EXT CL K ASM-2 0 RCV CLK RAD RAD DTE Figure 1-2. G.7 03 Modem Link Application ASM-2 0 G. 703 or X. 21/RS- 530 /V . 24 or V .35 or ETH DTE RAD ASM-2 0 RAD Fi ...
ASM-20 Installation and Operation Manual Chapter 1 Introduction Physical Description 1-3 • Built-in Ethernet bridge. Connection to an RS-449/V.36 interface is acco mplished via the RS-530 interface (see Appendix A, Ethernet Interface ). AS M-20 incorporates a built-in B it Error Rate Tester (BERT). The internal BERT allows complete testing of bot ...
Chapter 1 Introduction ASM-20 Installation and Operation Manual 1-4 Functional Description 02-Aug-2005 10:47 shows an example of an ASM-20 rear pa nel. A description of the rear panel can be found in Electrical Installation in Chapter 2 . The line and interface connectors are lo cated on the rear panel of AS M-20 (see Figure 1-5 ). GND RCV XM T DTE ...
ASM-20 Installation and Operation Manual Chapter 1 Introduction Functional Description 1-5 Modulation Timing This circuit supplies the tr ansmit clock to the encoder. Three clock sources are available: • Internal oscillator • External from the DTE • Loop clock derived from the receive signal. Setting the XMT CLK jumper dete rmines the timing ...
Chapter 1 Introduction ASM-20 Installation and Operation Manual 1-6 Functional Description 02-Aug-2005 10:47 A synchronous transmission is provided by internal conversion from asynchronous to synchronous mode in compliance with IT U V.22 bis. In this standard, the modem compensates for frequency de vi ation between the modem and the DTE by adjustin ...
ASM-20 Installation and Operation Manual Chapter 1 Introduction Technical Specifications 1-7 1.4 Technical Specifications Transmission Line Type Unloaded twisted pair 19 to 26 AWG Range See Table 1-1 Level Strap-selectable to 0 dBm or -6 dBm Transmit Impedance 150 Ω or LOW (strap selectable) Receive Impedance 150 Ω or HIGH (strap sel ectable) R ...
Chapter 1 Introduction ASM-20 Installation and Operation Manual 1-8 Technical Specifications 02-Aug-2005 10:47 Diagnostics (Complies with the V.54 Standard) Digital Loopback Local (DIG), activated by a manual switch Remote (REM), activated by a manual switch or by a control signal from the DTE interface connector Analog Loopback Local (ANA), activa ...
ASM-20 Installation and Operation Manual Chapter 1 Introduction Technical Specifications 1-9 Table 0-1 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 mil es km miles 256 3.75 2.3 2.85 1.75 2.25 1.4 1.9 1.2 192 6.0 3.7 4.5 2.8 3.5 2.2 2.7 1.7 144 10.6 6.6 6.75 4.2 4.5 2.8 3.4 2.1 ...
Chapter 1 Introduction ASM-20 Installation and Operation Manual 1-10 Technical Specifications 02-Aug-2005 10:47 ...
Package Contents 2-1 Chapter 2 Installation and Setup 2.1 Introduction This chapter provides instruction s for mech anical and electrical installatio n of the ASM-20 standalone model. • For rack installation of the ASM-20, see Chapter 5, Card Cage Version . • For ETH interface installation see Appendix A, Ether net Interface . • For G.703 int ...
Chapter 2 Installation and Setup ASM-20 Installation and Operation Manual 2-2 Setting Internal Jumpers and Switches 2.4 Equipment Needed ASM-20 is a standalone device designed to be placed on a table top or bench. It is delivered completely assemb led. No provisions are made for bolting ASM-20 to the tabletop. No special equipment is need ed for in ...
ASM-20 Installation and Operation Manual Chapter 2 Installation and Setup Setting Internal Jumpers and Switches 2-3 BAUD RA TE kbp s INT EXT RCV ASY XMT CLK CHA SS DIS CON RTS -C T S DL Y (ms) 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 - 57.6 A - 5 6 B - 4 8 C - 38. 4 D - 32 E - 2 8.8 F - 19.2 V5 4 DIS EN DIS ...
Chapter 2 Installation and Setup ASM-20 Installation and Operation Manual 2-4 Setting Internal Jumpers and Switches Table 2-1. ASM-20 Str ap Selection Settings Jumper and Switch Identity Function Possible Settings** J1 V54 DIS Prevents activation of remote V.54 loops. EN DIS J2 CARRIER Selects the transmit carrier mode. When ON, transmit carrier is ...
ASM-20 Installation and Operation Manual Chapter 2 Installation and Setup Setting Internal Jumpers and Switches 2-5 Table 2-2. ASM-20 Str ap Selection Settings (Cont.) Jumper and Switch Identity Function Possible Settings ** SW2 ASYNC LENGTH (3 dip switches) Select character length in async mode (see Table 2-3. Async Chara cter Length Setting for f ...
Chapter 2 Installation and Setup ASM-20 Installation and Operation Manual 2-6 Connecting the Cables Table 2-3. Async Char acter Length Setting Start Bit Data Bits Parity Stop Bit No. of Bits 1 5 NONE 2 8 1 6 NONE 1, 1.5, 2 8 9 1 6 ODD, EVEN 1, 1.5, 2 9 10 1 7 NONE 1, 1.5, 2 9 10 1 7 ODD, EVEN 1, 1.5, 2 10 11 1 8 NONE 1, 1.5, 2 10 11 1 8 ODD, EVEN 1 ...
Controls and Indicators 3-1 Chapter 3 Operation This chapter: • Describes the controls and indicators of ASM- 20 and their functions • Explains the operation procedures • Provides jumper and swit ch information. Installation procedures given in Chapte r 2, Installation and Setup must be completed and checked before atte mpting to operate the ...
Chapter 3 Operation ASM-20 Installation and Operation Manual 3-2 Controls and Indicators DIG ANA REM PATT ASM-20 AB C D RTS PWR TD DCD TEST ERR 1 2 3 RD 5 6 7 4 Figure 3-1. ASM-20/SA Front Panel PWR 1 2 3 4 5 A E B C D 7 RT S TD DCD TEST DIG ANA PAT T ERR RPF ASM - 20 Figure 3-2. ASM-20R Front Pa nel ...
ASM-20 Installation and Operation Manual Chapter 3 Operation Controls and Indicators 3-3 Table 3-1. Control and Indicator Funct ions Item Name Type Function A DIG Pushbutton The Digital Loopback switch causes the local ASM-20 to loop received data and clock back to its transmitter. Data Set Ready will turn off (see Figure 4-5 ). B ANA Pushbutton Th ...
Chapter 3 Operation ASM-20 Installation and Operation Manual 3-4 Power Off 3.3 Operation ASM-20 operates entirely unattended, exce pt when the occasional monitoring of LED indicators is required. Test Activation In order to verify that the ASM- 20 is oper ating correctly, use the internal BERT and analog loopback tests as described in Bit Error Rat ...
Bit Error Rate Tester (BERT) 4-1 Chapter 4 Troubleshooting and Diagnostics This chapter contains procedures for performing system diagnost ic tests for ASM-20. Use the test procedures provided in th is chapter to: • Verify normal system operation • Isolate faulty equipment in the event of failure. Tests are activated by control push buttons on ...
Chapter 4 Troubleshooting and Diagnostics ASM-20 Installation and Operation Manual 4-2 Bit Error Rate Tester (BERT) PAT T Pre ssed Pattern Ge nerat or Pattern Te s t e r Error XMT RCV ASM-2 0 Figure 4-1. BERT U sing Loops Alternatively, the complete link can be tested when using tw o ASM-20 mo dems or an external BERT. Figure 4-2 illustrates the tw ...
ASM-20 Installation and Operation Manual Chap ter 4 Troubleshooting and Diagnostics Local Test - Analog Loopback 4-3 4.3 Modem Self Test The modem self test verifies that AS M-20 is operating correctly. To verify that ASM-20 is operating correctly: 1. Press the ANA (Analog Lo opback) push button on the front panel. Both the TEST and DCD LEDs sh ...
Chapter 4 Troubleshooting and Diagnostics ASM-20 Installation and Operation Manual 4-4 Communication Link Tests 2. Check that the DTE is o perating properly and can be used for a test. If a fa ult is indicated, call a technician or replace the unit. 3. Execute the test using one of the methods descri bed below: Use the DTE and check the echoed ...
ASM-20 Installation and Operation Manual Chap ter 4 Troubleshooting and Diagnostics Communication Link Tests 4-5 RCVR RCVR LO C AL DA T A TER MINAL XMTR XMTR LOCAL ASM- 20 REMOTE ASM-2 0 DA T A DA T A CLK CLK REMOTE DA T A TER MINAL REM Pre ssed Figure 4-4. Re mote ASM-20 in Digital Loopback Local Digital Loopback This test is activated by pressing ...
Chapter 4 Troubleshooting and Diagnostics ASM-20 Installation and Operation Manual 4-6 Frequently Asked Questions 4.6 Frequently Asked Questions Q. How is the new version of ASM-20 different fro m the older version? A. ASM-20 has been improv ed in orde r to get CE mark approval and has some new features. A different ordering name, AS M-20-2, was gi ...
ASM-20 Installation and Operation Manual Chap ter 4 Troubleshooting and Diagnostics Technical Support 4-7 4.7 Technical Support Technical support for this product can be obtained from the local distrib utor from whom it was purchased. For further information, please contact th e RAD distributor nearest you or one of RAD's offices worldwide. Th ...
Chapter 4 Troubleshooting and Diagnostics ASM-20 Installation and Operation Manual 4-8 Technical Support ...
ASM-MN-214 Card Cage 5-1 Chapter 5 Card-Cage Version This chapter describes the ASM-20/R c ard ve rsion, designed fo r installation in the ASM-MN-214 card cage. The chapter describes: • ASM-MN-214 card cage • ASM-20/R card version • ASM-20/R power supply • How to install ASM-20/R. 5.1 ASM-MN-214 Card Cage The ASM-MN-214 card cage contains o ...
Chapter 5 Card-Cage Version ASM-20 Installation and Operation Manual 5-2 ASM-MN-214 Card Cage Figure 5-1. ASM-MN-214 Rear Panel ...
ASM-20 Installation and Operation Manual Chapter 5 Card-Cage Version ASM-20/R Card Version 5-3 5.2 ASM-20/R Card Version Figure 5-2. ASM-2 0/R Front Panel shows the ASM-20/R card front panel. Th e LEDs and switches of the card version are identical in their functionality to th ose of the st andalone device. For this information, see Controls and In ...
Chapter 5 Card-Cage Version ASM-20 Installation and Operation Manual 5-4 Power Supply 5.3 Power Supply Power is supplied to the ASM-20/R card from the ASM- MN-214 power supply via the chassis. Each ASM-20/R card has two fuses, which protect the entire system against power failure resulting fr om a short circuit in one card. The ASM-MN-214 card cage ...
ASM-20 Installation and Operation Manual Chapter 5 Card-Cage Version Installation 5-5 Figure 5-3. ASM-MN-214 Front Panel ...
Chapter 5 Card-Cage Version ASM-20 Installation and Operation Manual 5-6 Installation 5.4 Installation To install the ASM-20/R card in the ASM-MN-214 card cage: 1. Install the AS M-MN-214 card cage in t he 19" rack. 2. Adjust the jumpers and switches on the card as re quired (see Table 2-1 and Figure 2-3 in Chapter 2). 3. Insert the ASM-20 ...
IR-ETH Connector Options A-1 Appendix A Ethernet Interface This appendix: • Describes the IR-ETH for RAD mo dems • Describes the different IR-ETH connector optio ns • Lists the Ethernet bridge specificat ions • Explains how to install and operate a n Ethernet bridge. A.1 Description The IR-ETH is an interface module fo r RAD modems, used fo ...
Appendix A Ethernet Interface ASM-20 Installation and Operation Manual A-2 IR-ETH Connector Options Line C onnecto r Figure A-2 ASM-20 Rear Panel wi th IR-ETH/UTP Co nnector Option Line Connec tor Figure A-3 ASM-20 Rear Panel wi th IR-ETH/BNC Connector Option DB-25 (13) RCV (+) (12) RCV (-) (1 1 ) X MT(+) (9 ) XM T ( - ) (7 ) G ND 7 9 13 11 12 Figu ...
ASM-20 Installation and Operation Manual Appendix A Ethernet Interface Installation and Operation A-3 A.3 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 802.3/Ethernet Data Rate 10 Mbps (20 Mbps 10BaseT FDX) Connectors 10BaseT (UTP): ...
Appendix A Ethernet Interface ASM-20 Installation and Operation Manual A-4 Installation and Operation 1 2 3 4 Figure A-6 Ethernet Bridge Layout (BNC option) LAN Installation For 10BaseT installation, either a str aight cable or a cross-cable may be req uired. Use a cross-cable when connecting to a port that does not implement the crossover function ...
ASM-20 Installation and Operation Manual Appendix A Ethernet Interface Installation and Operation A-5 Table A-3 IR-ETH Brid ge LED Indicators LED Name Description Location Color LINK ON indicates good link integrity (available only in the 10BaseT version) Panel Green COLL ON indicates collision on the attached Ethernet segment Panel Yellow RX ON wh ...
Appendix A Ethernet Interface ASM-20 Installation and Operation Manual A-6 Installation and Operation ...
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.70 3 codirectional interface (64 kbps) • Describes the EXT mode • Describes the INT/RCV mode B.2 General Description The IR-G.703 is an interface module for RAD modems, converting G.703 cod ...
Appendix B IR-G.703 Codirectional Interface (64 kbps) ASM-20 Installation and Operation Manual B-2 EXT Mode Figure B-1. I R-G.703 Connector Options In Figure B-1 , RCV refers to the input signals to the IR module; XMT refers to the output signals fr om the module. The IR-G.703 interface module is shown in Figure B-2 . It has two operation modes whi ...
ASM-20 Installation and Operation Manual Appendix B IR-G.703 Codirectional Interface (64 kbps) INT/RCV Mode B-3 T imi ng So urce TX Da ta TX TX RX RX RX Da ta G.703 Codi rect ional 64 kb ps netwo rk FI FO EXT Cl ock Mode RCV Clo ck Mode Cloc k In Cloc k Out Modem A Modem B Cloc k Reco very Data Data CLK Cloc k Reco very FI FO IR-G.703 Module Cloc k ...
Appendix B IR-G.703 Codirectional Interface (64 kbps) ASM-20 Installation and Operation Manual B-4 INT/RCV Mode ...
IR-X.21B Connectors C-1 Appendix C IR-X.21B Interface Module This appendix: • Provides a general description of the IR-X.2 1B interface module • Describes the IR-X.21B connectors an d pin assignments • Describes the IR-X.21B interface module • Describes the EXT mode for the IR-X. 21B • Describes the INT/RCV mode for the IR-X.21B. C.1 Desc ...
Appendix C IR-X.21B Interface Module ASM-20 Installation and Operation Manual C-2 IR-X.21B Interface Module The ASM-20 modem rack version requires an additional adapter to connect between the DB-15 connector of the X.21 equipment to the DB-25 connector of the ASM-MN-214 mode m rack. For this purpose, an optional DB-15 attach ment CIA/X.21 can be or ...
ASM-20 Installation and Operation Manual Appe ndix C IR-X.21B Interface Module EXT Mode C-3 JP 2 INT/RCV INT/RCV cloc k setting EXT cloc k setting Co nn ect o r DB -1 5 EXT Figure C-3 Location of Jumper JP2 in the IR-X.21B Interface Module C.4 EXT Mode This mode is used in applications of X.21 networks where the system timing is provided by the X.2 ...
Appendix C IR-X.21B Interface Module ASM-20 Installation and Operation Manual C-4 INT/RCV Mode Transmit Data DB Connector FIFO Buffer IR-X.21 MODEM (EXT) TD TC RD RC from DTE (2,9) External timing from DTE (7,14) Receive Data to DTE (4,11) FIFO Buffer Signal Timing (6,13) Figure C-4 EXT Mode Ti ming Block C.5 INT/RCV Mode This mode is used in appli ...
D-1 Appendix D DTE Interface Connectors Table D-1 lists detailed information a bout each DTE interface connector. ...
Appendix D DTE Interface Connectors ASM-20 Installation and Operation Manual D-2 Table D-1. Interface Signal List (Female Co nnectors) Pinout and Standard Signal Names RS-232 V.35 EIA-530 X.21 Signal Function DB-25 Standalone and Frame DB-25 Frame 34-pin Standalone Pin Circuit DB-25 Standalone and Frame Pin Circuit DB-25 Frame DB-15 Standalone Pin ...
ASM-20 Installation and Operation Manual Appendix D DTE Interface Connectors D - 3 Table D-1. Interface Signal List (Female Connect ors) Pinout and Standard Signal Name s (Cont.) RS-232 V.35 EIA-530 X.21 Signal Function DB-25 Standalone and Frame DB-25 Frame 34-pin Standalone Pin Circuit DB-25 Standalone and Frame Pin Circuit DB-25 Frame DB-15 Stan ...
Appendix D DTE Interface Connectors ASM-20 Installation and Operation Manual D-4 ...
E-1 Appendix E Connection to RS-422 Table E-1 describes how to connect ASM-20 (E IA 530) to a RS-422 (V.36) DTE. Table E-1. Interface List for Connecting ASM-20 (RS- 530) to RS-422 (V.36) DTE Signal Function RS-449 (RS-422/423) 37 Pins EIA 530 DB-25 Female Standalone and Frame Pin Circuit Pin Circuit Protective Ground 1 Shield 1 Signal Ground 19 SG ...
Appendix E Connection to RS-422 ASM-20 Installation and Operation Manual E-2 ...
Installation of the Unit Case into a 19-inch Rack F-1 Appendix F Unit Case Assembly This appendix: • Describes the unit case • Describes how to install the unit case into a 19-inch rack. F.1 Unit Case The unit case design facilitates quick acce ss to the interior strappings as well as easy installation into a 19-inch rack. F.2 Installation of t ...
Appendix F Unit Case Assembly ASM-20 Installation and Operation Manual F-2 Installation of the Unit Case into a 19-inch Rack Short Brac ket Fas ten ing Scre ws Lon g Bra cket Figure F-1. Installing a Single Unit Installing Two Units Rack adapter components for installing two units include: two lo ng side rails (one for each unit) that slide into ea ...
ASM-20 Installation and Operation Manual Appendix F Unit Case Assembly Installation of the Unit Case into a 19-inch Rack F-3 Short Bra cke t Left-Ha nd Unit Right-Hand Unit Rail Short Brac ket Rail Figure F-2 Rack Adapter Components for Installation of Two Units To install two units: 1. Fasten one long side rail to each unit (right side to one ...
Appendix F Unit Case Assembly ASM-20 Installation and Operation Manual F-4 Installation of the Unit Case into a 19-inch Rack 4. ). 5. Secure the supplie d plastic caps to the ends of the rails, to prevent the un its moving and to protect the rail ends. 6. Place the assembled units in the rack and fasten the brackets to the side rails of the rack, b ...
24 Raoul W allenberg St., T el Aviv 69719, Israel T el: +972-3-6458181, F ax: +972-3-6483331, +972-3-6498250 E-mail: , W eb site: Customer Response Form RAD Data Communications would like your hel p in improving its product documentation. Please complete and return this form by mail or by fax or s end us an e-mail with your comments. Thank you for ...
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Error Report Type of Error(s) ❒ Incompatibility with product or Problem(s): ❒ Difficulty in understanding text ❒ Regulatory information (Safety, Compliance, Warnings, etc.) ❒ Difficulty in finding needed informatio n ❒ Missing information ❒ Illogical flow of information ❒ Style (spelling, grammar, references, etc.) ❒ Appearance ❒ ...
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Publication No. 601-20 0-09/05 www.rad.com INTERNATIONAL HEADQUAR TERS: 24 Raoul Wallenberg Street, Tel Aviv 69719, Israel, Tel: 972-3-6458181 Fax: 972-3-6498250, 972-3-647 4436, Email: market@rad.com NORTH AMERICA HEADQUARTE RS: 900 Corporate Drive, Mahwah, N.J. 07430, Tel: (2 01) 529-1100 Toll Free: 1-800-444-7234, Fa x: (201) 529-5777, Email: ma ...
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