Black Box SW177A User Manual
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Black Box SW177A User Manual

Black Box SW177A User Manual

Compact bidirectional reversible autoswitch
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JUNE 1999
SW177A
Compact Bidirectional
Reversible Autoswitch
CUSTOMER SUPPORT INFORMATION
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com

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  • Page 1 Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...

  • Page 2: Trademarks Used In This Manual

    COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH TRADEMARKS USED IN THIS MANUAL Centronics is a registered trademark of GENICOM Corporation. DeskJet is a registered trademark of Hewlett-Packard. Windows is a registered trademark of Microsoft Corporation. Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.

  • Page 3: Federal Communications Commission

    COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH FEDERAL COMMUNICATIONS COMMISSION INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference...

  • Page 4: Instrucciones De Seguridad

    COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
  • Page 5 COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH 10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor. 11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato.

  • Page 6: Specifications

    COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH 1. Specifications Function #1 (Default) and #2 (File-Transfer Mode) No. of Parallel Device Output Ports No. of Computer Input Ports Cable Type Required IEEE 1284 Cables Computer to Autoswitch DB25 M/M Device to Autoswitch DB25 M/Centronics ®...
  • Page 7 COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH Function #3 (Reverse Mode) No. of Parallel Device Output Ports No. of Computer Input Ports Cable Type Required IEEE 1284 Cables Computer to Autoswitch DB25 M/M Device to Autoswitch DB25 M/Centronics 36 M Maximum Cable Distance 5 meters Maximum Transfer Rate 2 megabytes per second...
  • Page 8 COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH 2. Introduction The IEEE 1284 standard is found on most printers today. It enables bidirectional communication between the PC and the printer, which allows printer information to be sent back to the host PC using its built-in micro- processor.

  • Page 9: Quick Start

    COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH 3. Quick Start This chapter contains four easy steps to set up your Autoswitch. 1. Be sure to turn off the power to your computers and printers. 2. Using an IEEE 1284 straight-through DB25 M/M cable, connect your computers to the Autoswitch. 3.

  • Page 10: Dip Switch Settings

    COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH 4. DIP-Switch Settings The four DIP switches on the side of the Autoswitch control Reverse Mode and the time-out settings. 4.1 Time-Out Settings 4.2 Reverse Mode The factory-default mode is DIP-switch #1 set to OFF. When set to ON, the switch will be in Reverse Mode.
  • Page 11 COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH 4.3 Reset Push Button If the two LEDs for the computers do not flash alternately and at the same time, none of the computer ports can communicate to the parallel device. Reset the switch for synchronization between computers and parallel devices.

  • Page 12: Typical Applications

    COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH 4.6 Typical Applications Two PCs Sharing One Parallel Device. (Set the DIP Switch #1 to OFF, Factory Default.) Flatbed Printer scanner Zip drive Camera COMMON Compact Bidirectional Reversible Autoswitch One PC Accessing Two Parallel Devices. (Set the DIP Switch #1 to ON.) COMMON Compact Bidirectional Reversible Autoswitch...

  • Page 13: Driver Software

    COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH 5. Driver Software 5.1 Software Selection Mode This Autoswitch comes with a driver diskette that contains driver software for DOS, Windows ® , and Windows 95/98 to set the appropriate AutoSwitch working mode, which includes Function #1 (Default), Function #2 (File Transfer Mode), and Function #3 (Reverse Mode).

  • Page 14: Troubleshooting

    COMPACT BIDIRECTIONAL REVERSIBLE AUTOSWITCH 6. Troubleshooting 6.1 Common Problems 1. Check all the cables. We recommend you use IEEE 1284 cables. 2. Use the optional AC power adapter. The Autoswitch is usually powered by the signal drawn from the computer and parallel device parallel port.
  • Page 15 If you determine that your Autoswitch is malfunctioning, do not attempt to alter or repair the unit. It contains no user-serviceable parts. Contact Black Box Technical Support at 724-746-5500. Before you do, make a record of the history of the problem.
  • Page 16 • Package it carefully. We recommend that you use the original container. • If you are shipping the Autoswitch for repair, make sure you include everything that came in the original package. Before you ship, contact Black Box to get a Return Materials Authorization (RMA) number.
  • Page 17 © Copyright 1999. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

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