ASMi-31 Short Range Modem Installation and Operation Manual Notice This manual contains information that is proprietary to RAD Data Communications. No part of this publication may be reproduced in any form whatsoever without prior written approval by RAD Data Communications. No representation or warranties for fitness for any purpose other than what is specifically mentioned in this manual is made either by RAD Data Communications or its agents.
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.
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. Only a qualified and authorized service personnel should carry out adjustment, maintenance or repairs to this instrument.
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: ASMi-31/S Conforms to the following standard(s) or other normative document(s): EMC: Safety: EN 55022 (1994) Limits and methods of measurement of radio disturbance characteristics of information technology equipment.
Quick Start Guide If you are familiar with ASMi-31, use this quick start guide to prepare the unit for operation. Perform the following steps for both the local and the remote units. Note 1. Disconnect all cables from the units. 2. Open the case of the units. 3. Adjust the jumpers (see Chapter 2, Installation and Setup). Make sure that there is only one clock source in the application. Select one modem as INT or EXT, and the second modem as RCV. 4. Close the case of the units. 5.
Quick Start Guide 2 ASMi-31 Installation and Operation Manual
Contents CHAPTER 1 INTRODUCTION 1.1 Overview ....................................................................................................................... 1-1 General ................................................................................................................................ 1-1 Versions................................................................................................................................ 1-1 Application .................................................
Table of Contents CHAPTER 5 CARD CAGE VERSION 5.1 ASM-MN-214 Card Cage ............................................................................................... 5-1 5.2 ASMi-31/R Card Version ................................................................................................ 5-3 5.3 Power Supply................................................................................................................. 5-4 AC Supply (100, 115 or 230 VAC)...............................................
Table of Contents List of Figures Figure 1-1 ASMi-31 Working Opposite HS-U Card in Megaplex-2100.......................................... 1-2 Figure 1-2 ASMi-31 Standalone Unit ............................................................................................ 1-3 Figure 2-1 Figure 2-2 Figure 2-3 Figure 2-4 Figure 2-5 ASMi-31 PCB Layout ................................................................................................... 2-4 ASMi-31 Rear Panel.......................................
List of Tables List of Tables Table 2-1 ASMi-31 Internal Jumpers and Switches........................................................................ 2-4 Table 2-2 DTE Interfaces and Matching Adapter Cables................................................................ 2-7 Table 3-1 Local Control Functions (via DTE) ................................................................................. 3-2 Table 3-2 ASMi-31 Controls and Indicators – Normal Operation .............................................
Chapter 1 Introduction This chapter describes basic physical and functional features of the ASMi-31 standalone modem, as well as some typical applications. It discusses the following topics: • An overview of the modem • Physical description • Functional description • Technical specifications. 1.1 Overview General The ASMi-31 modem is a synchronous/asynchronous short-range modem which is managed by a remote master modem.
ASMi-31 Installation and Operation Manual Chapter 1. Introduction Application Figure 1-1 illustrates the ASMi-31 application. 2-wire Backbone HS-U card MP-2100 ASMi-31 Figure 1-1 ASMi-31 Working Opposite HS-U Card in Megaplex-2100 Features The ASMi-31 short range modem supports full duplex transmission over 2-wire twisted pair unconditioned lines. The ASMi-31 modem operates in pairs with either another standalone modem, or as a card installed in the ASM-MN-214 hub.
ASMi-31 Installation and Operation Manual Chapter 1. Introduction 1.2 Physical Description ASMi-31 is available as a standalone desktop unit or as a card for the ASM-MN-214 hub. Figure 1-2 shows the 3D view of the ASMi-31 standalone unit. Figure 1-2 ASMi-31 Standalone Unit The front panel includes eight LEDs, which display the status of power, data flow, control signals and diagnostics. For detailed description of the front panel, see Chapter 3, Operation.
ASMi-31 Installation and Operation Manual Chapter 1. Introduction Remote Management The ASMi-31 standalone modem is very conveniently managed from the master station by means of RADview, a RAD SNMP application. This user-friendly graphical user interface manages the ASMi-31C modem cards installed in the LRS-12 or LRS-24 hub and, through them, the ASMi-31 standalone units. Both data and management are transmitted inband over the same line, simultaneously, without interference.
ASMi-31 Installation and Operation Manual Chapter 1. Introduction 1.4 Technical Specifications Line Interface Digital Interface (DTE) Type 2-wire, full duplex unconditioned telephone line (twisted pair), using echo-cancellation Line Coding 2B1Q Range Up to 8 km (5 miles), over a 24 AWG wire, independent of data rate Level Up to 14 dBm (assuming a 135Ω load) Connector Type 3-clip terminal block and RJ-45 connector Standard Complies with ANSI T1.601.1988 specifications Types ITU V.
ASMi-31 Installation and Operation Manual Chapter 1. Introduction Clock Source Master Clock Internal clock – The master clock uses its own internal crystal when transmitting or receiving data from the DTE interface and from the line. External clock – The master clock uses the clock derived from the digital interface to receive data from the DTE and for transmitting data to the line. If the digital interface is X.21, the same clock is used to transmit and receive data.
ASMi-31 Installation and Operation Manual Chapter 1. Introduction 0.2A, slow-blow for 115V Physical Environment 16-03-00 15:51 Height 4.4 cm / 1.7 in Width 19.3 cm / 7.6 in Depth 24.3 cm / 9.6 in Weight 1.5 kg Temperature 0°-50° C / 32°-122° F Humidity Up to 90%, non-condensing / 3.
Chapter 1.
Chapter 2 Installation and Setup This chapter provides the following information for the ASMi-31 standalone model: • Site requirements and prerequisites • Package contents • Instructions for mechanical installation • Instructions for electrical installation. After installing the unit, refer to Chapter 3 to assure normal operation. In case a problem encountered, refer to Chapter 4 for test and diagnostic instructions. Refer to Chapter 5 for additional information on the ASMi-31/R card version. 2.
Chapter 2. Installation and Setup ASMi-31 Installation and Operation Manual 2.2 Package Contents • One ASMi-31 unit (protected by adequate cushioning) • AC power cord or DC power supply connector kit • ASMi-31 Installation and Operation Manual • Interface adapter cable(s) (see Table 2-2) - Optional. 2.3 Installation and Setup ASMi-31 is a standalone device intended for tabletop or bench installation. It is delivered completely assembled. No provisions are made for bolting ASMi-31 to the tabletop.
ASMi-31 Installation and Operation Manual Chapter 2. Installation and Setup Access to the inside of the equipment is permitted only to the authorized and qualified personnel. Warning To avoid accidental electric shock, always disconnect the interface cables and the power cord before removing the unit from its casing. Line voltages are present inside ASMi-31 when it is connected to power and/or the lines.
ASMi-31 Installation and Operation Manual Chapter 2. Installation and Setup EN DIS EN DIS JP14 RLB 1 DIS 3 LLB 2 JP18 CHASS-GND CON JP15 CLOCK LBT INT EXT SW7 ABC D MAST DTR CNT 2STB ODD DIS 7BIT SYNC SW6 1 2 4 5 6 7 8 DIP 2345 SLAV DSR DCD 1STB EVEN P.EN 8BIT ASY EF1 6789 JP9 4 POS BAUD 0 1 2 3 4 5 6 7 8 9 A B C D E F 5 0.6K 1.2K 2.4K 4.8K 9.6K 19.2K 38.4K 48K *56K 64K 128K *144K *57.6K *115.2K 16K 32K 6 * Baud rates not applicable.
ASMi-31 Installation and Operation Manual Chapter 2. Installation and Setup Table 2-1 ASMi-31 Internal Jumpers and Switches (Cont.
ASMi-31 Installation and Operation Manual Chapter 2. Installation and Setup Table 2-1 ASMi-31 Internal Jumpers and Switches (Cont.) Item Jumper Section 7 Description Values Default Setting Controls the DTR to DSR transfer DSR ON – Indicates only that the local unit is powered up.
ASMi-31 Installation and Operation Manual Chapter 2. Installation and Setup ➤ To connect the line: 1. Insert the screwdriver into a square hole (see Figure 2-3). Figure 2-3 Connecting the Line – Step 1 2. Raise the inserted screwdriver, putting pressure on the ramp within the square hole (see Figure 2-4). Figure 2-4 Connecting the Line – Step 2 3. Insert the stripped end of the wire and remove the screwdriver (see Figure 2-5).
ASMi-31 Installation and Operation Manual Chapter 2. Installation and Setup Table 2-2 DTE Interfaces and Matching Adapter Cables (Cont.) DTE Interface Connector Description RAD Cable RS-530/RS-449 25-pin, D-type connector. For a description of the cabling connection between the RS-530 interface and the RS-449/RS-442 (V.36) 37-pin, D-type connector, see Appendix E. The cable is provided with the product. CBL-HBT/RS-530 G.703 Codirectional 64 kbps interface. For a description of the G.
Chapter 3 Operation This chapter provides the following information for the ASMi-31 standalone modem: • ASMi-31 front-panel indicators and controls • Operating procedures (turn-on, front-panel indications, performance monitoring and turn-off). Installation procedures given in Chapter 2 must be completed and checked before attempting to operate ASMi-31. 3.1 Controls and Indicators Figure 3-1 illustrates the ASMi-31 standalone modem front panel.
ASMi-31 Installation and Operation Manual Chapter 3. Operation Table 3-1 Front Panel Controls and Indicators (Cont.) Name Type ITU Circuit Function DCD Yellow LED 109 On when the local and remote modems are in sync, and the section 6 of the internal SW6 switch is set to ON. On when the local and remote modems are in sync, and the section 6 of the internal SW6 switch is set to OFF, and the RTS at the remote modem is ON.
ASMi-31 Installation and Operation Manual Chapter 3. Operation If the above LED indicators are not obtained following initial power-up, make sure that: Turning ASMi-31 Off 16-03-00 15:51 • One modem is set to internal or external clock, and the other to LBT clock. • None of the modems are in test mode. To turn off ASMi-31, simply remove the power cord from the power source.
Chapter 3.
Chapter 4 Troubleshooting and Diagnostics This chapter describes how to perform diagnostics tests on ASMi-31. The function of diagnostic tests on ASMi-31 is to: • Check that the system is operating normally • Isolate faulty equipment or cables • Identify other sources of system malfunction. Tests are activated via the corresponding DTE pins and monitored via the ASMi-31 front-panel LED indicators. 4.
ASMi-31 Installation and Operation Manual Chapter 4. Tests and Diagnostics Local Analog Loopback (LLB) The Local Analog Loopback (LLB) test checks the performance of the local ASMi-31, the local DTE, and the connections between them (see Figure 4-1). Perform the test separately at the local and the remote site.
ASMi-31 Installation and Operation Manual Chapter 4. Tests and Diagnostics Remote Loopback This test determines the performance of both the local and the remote ASMi-31 modems, as well their connecting 2-wire line between them. The (RLB) test activates a diagnostic loopback at the remote ASMi-31 modem (see Figure 4-2).
Chapter 4.
Chapter 5 Card Cage Version This chapter describes the ASMi-31/R card version, designed for installation in the ASM-MN-214 card cage. The chapter contains the following sections: • Section 5.1 describes the ASM-MN-214 card cage • Section 5.2 describes the ASMi-31/R card version • Section 5.3 describes the power supply to ASMi-31/R • Section 5.4 describes how to install ASMi-31/R. 5.1 ASM-MN-214 Card Cage The ASM-MN-214 card cage contains one or two power supplies and up to 14 plug-in cards.
ASMi-31 Installation and Operation Manual Chapter 5. Card Cage Version Terminal Block Terminal Block CIA/V.35/1 Protection Cover CIA/X.
ASMi-31 Installation and Operation Manual Chapter 5. Card Cage Version 5.2 ASMi-31/R Card Version Figure 5-2 shows the ASMi-31/R card front panel. The LEDs and switches of the card version are identical in their functionality to those of the standalone device. For this information, refer to Section 3.1, Controls and Indicators, in Chapter 3. The jumper settings are the same as with ASMi-31 standalone version (refer to Table 2-1).
ASMi-31 Installation and Operation Manual Chapter 5. Card Cage Version 5.3 Power Supply Power is supplied to the ASMi-31/R card from the ASM-MN-214 power supply via the chassis. Each ASMi-31/R card has two fuses, which protect the entire system against power failure resulting from a short circuit in one card. The ASM-MN-214 card cage can accept both AC or DC power supplies.
ASMi-31 Installation and Operation Manual Chapter 5. Card Cage Version 5.4 Installing ASMi-31/R ➤ To install the ASMi-31/R card in the ASM-MN-214 card cage: Warning 16-03-00 15:51 1. Install the ASM-MN-214 card cage in the 19" rack. 2. Adjust the jumpers and switches on the card as required (see Figure 21 and Table 2-1 in Chapter 2). 3. Insert the ASMi-31/R card into one of the ASM-MN-214 slots.
Chapter 5.
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. A.2 Description The IR-ETH is an interface module for RAD modems, used for converting the Ethernet (10BaseT or 10Base2) electrical levels to the modem TTL levels.
ASMi-31 Installation and Operation Manual Appendix A. Ethernet Interface A.3 IR-ETH Connector Options Figure A-2 and Figure A-3 show the rear panel of ASMi-31 with the IR-ETH connector options. The IR-ETH connector for the ASMi-31/R card (rack mount version) is shown in Figure A-4.
ASMi-31 Installation and Operation Manual Appendix A. Ethernet Interface When using the RJ-45 connector, the customer must prepare a mechanical cable for adapting the DB-25 pinout to that of RJ-45. The pinouts of the DB-25 and RJ-45 connectors are given in Table A-1. Table A-1 DB-25 and RJ-45 Pin Assignment for IR-ETH Connection Signal Pin DB-25 RJ-45 RCV (+) 13 3 RCV (-) 12 6 XMT (+) 11 1 XMT (-) 9 2 GND 7 - A.
Appendix A. Ethernet Interface ASMi-31 Installation and Operation Manual A.5 Installation and Operation Figure A-5 and Figure A-6 show the Ethernet bridge layout, the locations of the DIP switches, and the rear panel components for the UTP and the BNC versions, respectively.
ASMi-31 Installation and Operation Manual LAN Installation Note Switch Settings Appendix A. Ethernet Interface For 10BaseT installation, either a straight cable or a cross-cable may be required. Use a cross-cable when connecting to a port that does not implement the crossover function internally. Otherwise, use a straight cable. Hubs usually implement the crossover function internally while NICs and other devices do not. Set switches according to Table A-2.
Appendix A.
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.703 Codirectional interface (64 kbps). B.2 General Description The IR-G.703 is an interface module for RAD modems, converting G.703 Codirectional signals to TTL levels.
Appendix B. IR-G.703 Codirectional Interface (64 kbps) ASMi-31 Installation and Operation Manual (9,11) RCV RCV (3, 6) GND (2) G.703 LINE FUSE XMT (4, 5) 1 (7) GND 7 8 LINE GND 2 4 5 230 V/0.1A T 250V GND XMT 2 (2,16) XMT 16 9 11 RCV Terminal Block (Standalone) RJ-45 (Standalone) DB-25 (Rack Version) Figure B-1 IR-G.703 Connector Options Note In Figure B-1, RCV refers to the input signals to the interface module; XMT refers to the output signals from the module. The IR-G.
ASMi-31 Installation and Operation Manual Appendix B. IR-G.703 Codirectional Interface (64 kbps) Modem A Modem B IR-G.703 Module TX Data G.703 Codirectional 64 kbps network TX Data Clock Recovery CLK Clock Out RX FIFO Clock Recovery Data Clock Recovery RX Data Timing Source FIFO RX TX Clock In EXT Clock Mode RCV Clock Mode Figure B-3 IR-G.703 EXT Mode Timing Block B.4 INT/RCV Mode This mode is used in applications where the G.
Appendix B. IR-G.
Appendix C X.21 Interface Module C.1 General IR-X.21 is an interface module for RAD modems, converting X.21 signals to TTL levels. The converted data is sent over the modem link, using the modem modulation technique, and is converted back at the other end into X.21 signals, or into any other digital interface signal. ASMi-31 is generally supplied with IR-X.21. This is due to an internal FIFO that assumes the phase mismatch when the clock is supplied by an external source.
ASMi-31 Installation and Operation Manual Appendix C. X.21 Interface Module Pin Assignment Table C-1 shows the X.21 DB-15 pin assignment. Table C-1 IR-X.
ASMi-31 Installation and Operation Manual Appendix C. X.21 Interface Module INT/RCV clock setting EXT JP 2 EXT clock setting Connector DB-15 Figure C-3 Location of Jumper JP2 in the IR-X.21 Interface Module C.3 EXT Mode This mode is used in applications of X.21 networks where the system timing is provided by the X.21 network. The IR-X.21 module has an internal buffer to compensate for the phase delay introduced to the system by the line delay between the two modems.
ASMi-31 Installation and Operation Manual Appendix C. X.21 Interface Module IR-X.21B TXD TXD (2, 9) Signal Timing ETC (6, 13) MODEM DTE ETC RXC FIFO Buffer Rx RXD (7, 14) RXD (4, 11) Figure C-4 EXT Mode Timing Block C.4 INT/RCV Mode This mode is used in applications where the IR-X.21 side uses the clock signal from the modem link. This mode is used mainly when the attached equipment has an IR-X.21 interface, but no ability to produce clock signals.
Appendix D DTE Interface Connectors D.1 General Table D-1 provides detailed information about each DTE interface connector. Table D-1 DTE Interface Signal Assignments RS-232 Signal Function DB-25 Standalone and Frame V.35 DB-25 Frame EIA-530 34-pin Standalone Pin Circuit DB-25 Standalone and Frame Pin Protective Ground 1 1 A Frame 101 1 Signal Ground 7 7 B Signal 102 Ground 7 Transmitted Data 2 11 9 S TD(B) 103 P TD(A) 103 Received Data 3 12 13 R RD(A) 104 T RD(B) 104 X.
ASMi-31 Installation and Operation Manual Appendix D. DTE Interface Connectors Table D-1 DTE Interface Signal Assignments (Cont.) RS-232 Signal Function DB-25 Standalone and Frame V.35 DB-25 Frame EIA-530 34-pin Standalone DB-25 Standalone and Frame Pin Circuit Pin Circuit X.
ASMi-31 Installation and Operation Manual Appendix D. DTE Interface Connectors Table D-1 DTE Interface Signal Assignments (Cont.) RS-232 V.35 EIA-530 X.21 DB-25 Standalone and Frame DB-25 Frame 34-pin Standalone DB-25 Standalone and Frame DB-25 Frame Pin Circuit Pin Circuit External Transmit Clock 24 19 16 U SCTE(A) 113 W SCTE(B) 113 24 11 DA(A) DA(B) 24 11 7 14 (A)* (B)* A serial data rate clock input from the data source.
ASMi-31 Installation and Operation Manual Appendix D. DTE Interface Connectors Table D-1 DTE Interface Signal Assignments (Cont.) RS-232 V.35 DB-25 Standalone and Frame DB-25 Frame Remote Loopback 21 Test Indicator 25 Signal Function D-4 General EIA-530 X.21 34-pin Standalone DB-25 Standalone and Frame DB-25 Frame Pin Circuit Pin Circuit 21 N and h 140 21 RL A control signal input; when on, commands ASMi-31 to send a remote Loopback command (V.54 Loop 2) to the remote ASMi-31.
Appendix E Connecting RS-530 to RS-422 Table E-1 Connecting RS-530 to RS-422 Signal Function RS-449 (RS-422/423) RS-530 37-pin Pin DB-25 Female Standalone & Card Cage Pin Circuit Circuit Protective Ground 1 Shield 1 Signal Ground 19 SG 7 AB DTE Common Return 37 SC DCE Common Return 20 RC Transmitted Data 4 SD (A) 2 BA (A) 22 SD (B) 14 BA (B) Received Data 6 RD (A) 3 BB (A) 24 RD(B) 16 BB (B) 7 RS (A) 4 CA (A) 25 RS (B) 19 CA (B) 9 CS (A) 5 CB (A) 27 CS (B
Appendix E Connecting RS-530 to RS-422 ASMi-31 Installation and Operation Manual Table E-1 Connecting RS-530 to RS-422 (Cont.
Appendix F Installation in 19" Rack F.1 Installation of the ASMi-31 Unit in 19" Rack General The height of the unit is 1U (1.75"); the width of the unit is slightly less than half the available mounting width. A rack adapter kit, RM-9, is available for installing either a single unit or two units side by side in the 19" rack. Warning Installation of a Single Unit Disconnect the power before performing the procedures below.
ASMi-31 Installation and Operation Manual Appendix F. Installation in 19" Rack Figure F-1 Installation of a Single Unit Installation of Two Rack adapter components for installing two units include two long side rails (one for each unit) which slide one into the other, fastening the two units Units together and two short side brackets which hold the two units in the 19" rack (see Figure F-2).
ASMi-31 Installation and Operation Manual Appendix F. Installation in 19" Rack Figure F-2 Installation of Two Units ➤ To install two units: 1. Fasten one long side rail to each unit (right side to one unit, left side to the other unit) using the four screws supplied. The side rails must be attached in opposing fashion, the narrow flange of the first rail opposite the wide flange of the second rail. 2. Attach one short bracket opposite the side rail on each unit using the four screws supplied. 3.
Appendix F.