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Telesto Private Wire Manual

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Telesto Private Wire Modem
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Summary of Contents for Telesto Private Wire

  • Page 1 Telesto Private Wire Modem Manual...
  • Page 3 Telesto Private Wire Modem Manual...
  • Page 4 Revision History Filenames are: G:\Company\Manuals &graphics\Manuals \ReferenceManual\Components \Telesto_modem\Private Wire\Remote\RevA\CompleteManual\TelestoPwModemCover.lwp G:\Company\Manuals &graphics\Manuals \ReferenceManual\Components \Telesto_modem\Private Wire\Remote\RevA\CompleteManual\TelestoPwModemManual.lwp G:\Company\Manuals &graphics\Manuals \ReferenceManual\Components \Telesto_modem\Private Wire\Remote\RevA\CompleteManual\TelestoPwModemTitle.lwp Date Author Description May 6, 2002 R. Catalfamo Initial release. Approval: ________________________________...

  • Page 5: Table Of Contents

    ............. . . Telesto Private Wire Modem...
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  • Page 7: Introduction

    It is strongly recommended that you read the entire manual before commencing testing, configuring, or using the Telesto. On the following pages you will find a wealth of information regarding all aspects of the Telesto modem. Please read the instructions carefully.
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  • Page 9: Organization Of This Manual

    "as-shipped" section. Chapter 4 Technical Description Description of features and technical specifications. Chapter 5 Servicing Recommended maintenance and repair procedures. Appendices These list pin connections, outline & installation drawings and the Telesto Private Wire Modem Technical Specification Telesto Private Wire Modem...
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  • Page 11: Unpacking & Post Delivery Inspection

    Open and inspect the shipment for possible damage. Carefully check each item for damage or defects. The following list includes items generally included with the Telesto modem. This list can vary from application to application. To determine the exact list of items included in your shipment refer to the shipping documents.
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  • Page 13: Technical Description

    Figure 1: Telesto Private Wire Modem, General Function Theory of Operation The two main functions of the Telesto modem are to interface the data from the Europa digitiser to the leased-line telephony network and, optionally, to supply power to the E uropa digitiser. The functions are performed by a Printed Circuit Board (PCB) mounted inside the Telesto enclosure.
  • Page 14 Because data flow can occur in both directions, i.e., to/from a remote site, the Telesto private wire modem is a full-duplex device. This allows seis mic data to be sent continuously to the central data acquisition site while also providing a return path for retransmission requests from the central site.

  • Page 15: Configuration

    This configuration assumes that the telephone network is a 4-wire leased line system. Because the Telesto Modem at the remote site is paired with a corresponding unit at the central site, it is important to configure the remote site Telesto Modem in ANSWER mode (the central site modem, in this case, is in ORIGINATE mode).
  • Page 16 Firmware configuration allows the user to tailor such configurable parameters as data port rate, flow control, error correction, etc. In this application, as a point-to-point private wire modem, the following settings are required. The Telesto Private Wire Modem is shipped with this configuration.
  • Page 17 Technical Description Connect the comms port of the Telesto Private Wire Modem to the serial COM port of a PC or laptop computer. Start a terminal emulator, e.g., ZOC, on the computer and configure it to the correct COM port.
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  • Page 19: Servicing

    5. Servicing Basic troubleshooting The Telesto Private Wire Modem is always used as part of a network containing Europa digitisers. Therefore troubleshooting the Telesto usually involves setting up some combination of (digitiser,Telesto Modem,central site) equipment under laboratory conditions. In this manner the commas port of the Telesto Modem can be checked for data continuity which is sufficient proof that the Telesto Modem is operational.
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  • Page 21: Appendix A - Connector Pinouts

    3 (Dial 2) Table 2: Leased Line Connector Pinout Pin Number Signal Name Battery+ Earth Battery- Table 3: Input Power Connector Pinout Pin Number Signal Name Battery+ Earth Battery- Table 4: Output Power Connector Pinout Telesto Private Wire Modem...
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  • Page 23: Appendix B - Outline And Installation Drawing

    Appendix B - Outline and Installation Drawing Telesto Private Wire Modem...

  • Page 24: Appendix C - Technical Specifications

    The Telesto Private Wire Modem is an interfacing unit between an RS232 line and an analog private wire line (dedicated telephone line). At one end it connects to the serial data port (port 2) of the Callisto Europa digitiser and at the other end to a 2 or 4 wire analog telephone line. The Telesto is powered from a 24 Vdc power source and provides 12 Vdc to the Callisto Europa digitiser.
  • Page 25 Included Parts Telesto Private Wire Modem Power Mating connector Notes See Nanometrics document 13005 for physical characteristics. The unit must be properly grounded with a ground wire connected to the grounding lug on the front panel. Telesto Private Wire Modem...

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