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FEBRUARY 1998
SW175A
SW176A
Compact Bidirectional
AutoSwitch
CUSTOMER SUPPORT INFORMATION
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
PRINTER
A
B
POWER
MANUAL
D
B
C
B
SELECT
A
RESET
C
D
Compact Bi-directional
Auto Switch
A
Compact Bi-
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COMPACT BIDIRECTIONAL AUTOSWITCH FEDERAL COMMUNICATIONS COMMISSION AND 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 B of Part
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COMPACT BIDIRECTIONAL 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. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4. Todas las instrucciones de operación y uso deben ser segui
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COMPACT BIDIRECTIONAL 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. 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los
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COMPACT BIDIRECTIONAL AUTOSWITCH TRADEMARKS USED IN THIS MANUAL Centronics is a registered trademark of Centronics Corporation. DeskJet, Hewlett Packard, and LaserJet are registered trademarks of Hewlett-Packard. Windows is a registered trademark of Microsoft Corporation. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners. 4
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COMPACT BIDIRECTIONAL AUTOSWITCH Specifications SW175A SW176A No. of Computers 2 4 Input Interface (2) DB25 (4) DB25 Input Port Selection Auto Auto/Manual Weight 0.25 lb. (0.1 kg) 0.5 lb. (0.2 kg) No. of Printers 1 Max. Transfer Rate 2 MB per second Output Interface (1) DB25 Form Feed Selectable Time-Out 5, 10, 20, or 40 seconds Operating Temp. 41 to 104°F (5 to 40°C) Compatible Printers: ® Hewlett Packard ® • LaserJet 4P, 4Plus, 4LC, 4V, 4VC, 4MV, 4SiMX, 4MP, 4ML, 4Si, 5, 5M, 5N, 5P, 5L, 5MP, 5
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COMPACT BIDIRECTIONAL AUTOSWITCH Description The Compact Bidirectional AutoSwitch allows 2 or 4 users to share one IEEE 1284 printer. The Switch also lets you control the printer remotely using the printer software (which is supplied with your printer). You can change printer settings, as well as receive printer messages like “printer busy,” “printer out of paper,” and “paper jam” directly from your computer. The Switch is compatible with Windows 3.x and Windows 95, is IEEE 1284 compliant, and s
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COMPACT BIDIRECTIONAL AUTOSWITCH Installation Installation Procedure 1. Turn off all computers and the printer. 2. Set the DIP switches to the proper position according to the DIP-Switch Setting Chart (on the next page). 3. Use the standard “straight-through” or IEEE 1284 DB25 M/M cables to connect the computers to the AutoSwitch. 4. Use an IEEE 1284 DB25/Centronics 36 printer cable to connect the AutoSwitch to the IEEE 1284 printer. 5. Turn on the computers and the printer. The computers are no
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COMPACT BIDIRECTIONAL AUTOSWITCH DIP-Switch Settings There are four DIP switches located at the side of the AutoSwitch. Switch 1 controls form feed, 2 and 3 set the the timeout length, and 4 is not used. The tables below show you the DIP-switch settings for enabling or disabling form feed, and for setting the time-out for 5, 10, 20, or 40 seconds. 1 FORM FEED 2 3 TIME-OUT ON ENABLE ON ON 5 sec. OFF DISABLE ON OFF 10 sec. OFF ON 20 sec. OFF OFF 40 sec. The Reset Button The RESET button resets the
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COMPACT BIDIRECTIONAL AUTOSWITCH The Power Adapter The AutoSwitch is usually powered by the signals drawn from computers and the printer. A power supply is not required under such conditions. However, if the peripherals are not able to supply enough power to the AutoSwitch, a 9-VDC, 500-mA power supply may be required to operate the switch properly. 9
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COMPACT BIDIRECTIONAL AUTOSWITCH Troubleshooting ® If Windows is used on the computer, set the time- out to 40 seconds. This will accommodate the longer time that Windows needs to request information from the printer. Also, if a large document or graphic is printed through the Switch, a longer time- out, such as 20 or 40 seconds, may be required for the Switch to operate properly. NOTE We recommend not running a DOS window from Windows 95. 10
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COMPACT BIDIRECTIONAL AUTOSWITCH Calling Black Box 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 at 724-746-5500. Before you do, make a record of the history of the problem. We will be able to provide more efficient and accurate assistance if you have a complete description, including: • the nature and duration of the problem. • when the problem occurs. • the components involved in the
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COMPACT BIDIRECTIONAL AUTOSWITCH Shipping and Packaging If you need to transport or ship your AutoSwitch: • 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 Authorization (RA) number. 12
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© Copyright 1998. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746
