Advent Instruments AI-5120 User Manual

Telephone line monitor

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AI-5120

Telephone

Line Monitor

User Guide

Advent Instruments Inc.

Release 1.2d

Table of Contents

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Summary of Contents for Advent Instruments AI-5120

Page 1 AI-5120 Telephone Line Monitor User Guide Advent Instruments Inc. Release 1.2d...
Page 2: Safety Symbols And Terms
User Guide. Installation Categories Advent Instruments products are designed for use and to measure electrical signals that are rated Measurement Category I as described in the International Electrotechnical Commission (IEC) Standard IEC 606064. The equipment measurement terminals are not designed to be directly connected to the mains...
Page 3: Table Of Contents
Safety Symbols and Terms Installation Categories 1. Getting Started 1.1 Introduction 1.2 Package Contents 1.3 Important Safeguards and Safety Precautions 1.4 Powering on the AI-5120 1.5 Connecting to the PC 2. TRsSim Software 2.1 Introduction 2.2 For More Information 3. AI-5120 Instrument Suite 3.1 Introduction...
Page 5: Getting Started
On/Off hook, Line Reversals, Open Switching Intervals (OSI) As a line monitor, the AI-5120 does not go off-hook (seize the line), or generate tones. It only listens. The impedance presented by the AI-5120 to the telephone line is over 10 Mohm.
Page 6: Package Contents
5 second memory depth in addition to programmable triggers, filters, and cursors. The AI-5120 connects to the PC via either a full speed (12 Mbit/s) USB 2.0 interface, or a legacy RS-232 communications port. While the TRsSim software functions with either interface, the use of the USB connection is strongly recommended due to the fast data transfer rates.
Page 7: Important Safeguards And Safety Precautions
However please ensure the AC voltage source is within the limits printed on the label. The AI-5120 does not have power switch. To turn the unit on, insert the 2mm plug from the supplied power adapter into the matching rear panel jack of the AI-5120. Then plug the power adapter into the mains AC socket.
Page 8: Connecting To The Pc
Appendix B: Error Codes for more information and possible corrective action. 1.5 Connecting to the PC The AI-5120 can be connected to the PC by either its RS-232 port or USB 2.0 compliant full speed (12 Mbit/second) port. Both connectors are present on the rear panel of the unit.
Page 9 AI-5120 and the PC serial port. The AI-5120's RS-232 data transmissions are fixed at 8 data bits with 1 stop bit and no parity. The baud rate is adjustable from a default (at power up) setting of 9600 bps to a maximum of 115200 bps.
Page 10: Trssim Software
The graphical representation of the AI-5120 is the main control panel. The TRsSim software can connect with more than one AI-5120, and each one is displayed in a separate control panel window. From this window, the current telephone line status is shown as well as the DC voltage and AC signal readings.
Page 11 Caller ID transmission are displayed. The AI-5120 records waveforms using two different channels. The first channel is DC coupled and provides a maximum range of +/- 300 volts. It is used for recording events such as ringing, on-hook, off-hook, line flash, and pulse dialing.
Page 12 The Waveform Analysis option gives the TRsSim software the following abilities: • Show byte and bit level decoding of any FSK waveforms • More detailed physical layer FSK signal measurements • More detailed DTMF signal measurements • Waveform filtering and adjustments • Waveform measurements AI-5120 User Guide...
Page 13: For More Information
2.2 For More Information Detailed information on the operation of the TRsSim software for the AI-5120 can be found in the "TRsSim - Telephone Line Monitor - User Guide" document. It shows how to install and setup the software along with more complete instructions on its use.
Page 14: Ai-5120 Instrument Suite
3. AI-5120 Instrument Suite 3.1 Introduction The AI-5120 Instrument Suite is a Windows software package allowing the AI-5120 Telephone Line Monitor to operate as a digital storage oscilloscope (DSO) and spectrum analyzer. The software enables the user to investigate the time domain and frequency domain representation of signals through an intuitive instrument like software interface.
Page 15 Center Frequency Programmable (Note: not all center frequencies are available since negative frequencies and frequencies >35kHz will not be displayed) Other Features Peak Hold, Programmable Averaging * Accuracy is specified with Blackman windowing, and no signal filters engaged AI-5120 User Guide...
Page 16: For More Information
Along with software updates, the web site also contains the latest versions of any relevant documentation. For technical support regarding the AI-5120 or the Instrument Suite software, please contact us in any of the manners listed in Appendix C: Support.
Page 17: Technical Overview
10 Mohm to ground for each of the tip and ring leads. The high input impedance prevents the AI-5120 from affecting the signals present on the telephone line in any significant manner. Following the amplifier, the signals are split into two paths.
Page 18 8 ohms to 32 ohms. Its maximum output level is 2.8 volts peak-to-peak. The next figure depicts the signal processing flow within the AI-5120. The source of all signal data is from either the DC coupled channel or AC coupled channel.
Page 19: Indicators & Connections
When the "Ready" indicator is illuminated (no fault condition), then the two right side LED's show when the AI-5120 has detected ringing or when the line state is in the off- hook condition. Ringing is detected if an AC voltage exceeding 40 Vrms with a frequency in the range of 10 to 100 Hz.
Page 20 The connection to the PC (or any other host) is made via either the USB type B connector or the 9 pin RS-232 connector. It is possible to transfer data to the AI-5120 over both the USB and RS-232 ports simultaneously. However the TRsSim software is configured to only use one of the two ports.
Page 21 The standard product support and warranty period for the instruments is one year. This option increases the parts and labor warranty period for another three years to a total of four years from date of purchase on the instrument. AI-5120 User Guide...
Page 22: Specifications
Output Pin Pull-up Resistance 5.1 kΩ Number of Input Pins Input Pin Impedance 100 kΩ Input Pin Low Level Input 0.8 Volts (for logic 0) Maximum Input Pin High Level Input 2.0 Volts (for logic 1) Minimum AI-5120 User Guide...
Page 23 Width: 14 cm (5.5") Height: 4 cm (1.6") Depth: 20 cm (8.0") Weight ≈ 680 g (1½ lbs) Operating Temperature Range 5 to 40 ºC, 80%RH Storage Temperature Range -25 to 70 ºC, 80%RH Operating Altitude ≤ 2000 m AI-5120 User Guide...
Page 24: Firmware Updates
The program is available from the included CD or from our web site at: http://www.adventinstruments.com Once the AI Firmware Update software is installed on a PC, connect the AI-5120 to one of its COM ports. Power the AI-5120 on and start the firmware update software. The software will ask if it should query our website for latest updates.
Page 25 Once the update process is complete and no errors were detected, a green icon is shown to the left of the device information. If the update could not be completed due to errors, a message providing information on the error is displayed. Please contact us for assistance in resolving the error. AI-5120 User Guide...
Page 26: Appendix A: Usb Driver Installation
USB drivers with this installer package. 1. Download the USB installer Package The USB installer package can be downloaded from our website at the following page http://www.adventinstruments.com/Downloads/ or copied from the original CDrom provided with the instrument. AI-5120 User Guide...
Page 27 Once the file is located on the target computer double click on the file to start the self extraction and the following window will be displayed. 3. Click on the Next button to install the driver files Windows will now copy the driver files from the installer package to the target computer. AI-5120 User Guide...
Page 28 6. Connect the Instrument to the PC via the USB cable The following brief popup bubble will appear indicating Windows has detected the new instrument. Then a short time later the following popup will appear and the instrument is recognized by Windows and the PC. AI-5120 User Guide...
Page 29: Appendix B: Error Codes
Appendix B: Error Codes Various AI-5120 error conditions may be detected at power on or during operation. If such a condition is detected, the "Ready" indicator starts to flash from its normally solid on state. The type of error detected is determined by examining the state of the "Ringing"...
Page 30 It represents a software problem and should be corrected. The following error code is a special case in which the "Ready" indicator is not flashing. This error can only occur shortly after the AI-5120 is powered on. READY RINGING OFF-HOOK...
Page 31: Appendix C: Support
• In Asia: Tel: (852) 8108-1338 Fax: (852) 3909-2338 Mail: Advent Instruments (Asia) Ltd. Unit 42, 18/F., Block D Wah Lok Industrial Centre, Phase II 31 / 35 Shan Mei Street Fotan, Shatin, New Territories, Hong Kong AI-5120 User Guide...
Page 32 The RoHS Directive restricts the use of certain substances including lead, mercury, cadmium, hexavalent chromium and certain halogenated flame retardants such as PBB and PBDE in electrical and electronic equipment. Advent Instruments products will have less than the RoHS limits stated below for the six restricted use substances. Restricted Substance List:...