Manual Black Box PSD-4

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  • Black Box PSD-4 - page 1

    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 CUSTOMER SUPPORT INFORMATION SEPTEMBER ...

  • Black Box PSD-4 - page 2

    FCC ST A TEMENT 1 FEDERAL COMMUNICA TIONS COMMISSION AND INDUSTR Y CANADA RADIO FREQUENCY INTERFERENCE ST A TEMENTS 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 inter ference to radio communication. I ...

  • Black Box PSD-4 - page 3

    PSD-4 AND PSD-8 2 INSTRUCCIONES DE SEGURIDAD (Normas Oficiales Mexicanas Electrical Safety Statement) 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 ...

  • Black Box PSD-4 - page 4

    TRADEMARKS 3 TRADEMARKS USED IN THIS MANUAL AS/400 is a registered trademark of International Business Machines Corporation. Any other trademarks mentioned in this manual are acknowledged to be the pr oper ty of the trademark owners. ...

  • Black Box PSD-4 - page 5

    PSD-4 AND PSD-8 4 1. Specifications Number of Sub-Channels — PSD-4: 4 PSD-8: 8 Channel Configuration — Lowest Priority: Sub-channel 1 Highest Priority: PSD-4: Sub-channel 4 PSD-8: Sub-channel 8 Sub-Channel Selection — R TS/DCD on or data transitions (strap-selectable) Sub-Channel Deselection — R TS/DCD off or 16 bits of idle data (strap-sel ...

  • Black Box PSD-4 - page 6

    CHAPTER 2: Introduction 5 2. Introduction The Programmable Sharing Device enables up to 4 (TL304A) or 8 (TL305A) modems or terminals to share a master modem, multiplexor , or computer port in an asynchronous or synchronous multipoint environment. (Asynchronous and synchronous equipment cannot be mixed on the same PSD.) M AIN C HANNEL The main chann ...

  • Black Box PSD-4 - page 7

    PSD-4 AND PSD-8 6 3. Installation 3.1 Choosing a Site • The PSD must be installed within five feet (1.5 m) of a grounded AC outlet. • The PSD must be within 50 feet (15 m) of the equipment that will be attached to the main channel and each sub-channel. • Allow 36 inches (91 cm) frontal clearance for operating and maintenance accessibility . ? ...

  • Black Box PSD-4 - page 8

    CHAPTER 3: Installation 7 T able 1. Printed Circuit-Board Switch and Strap Settings Possible Factory Stap Identity Location Settings Setting Function MAIN DCE/DTE switch DTE DTE Determines the PSD’s Main Channel DCE interface as either DTE (straight connection to a modem) or as DCE (straight connection to a computer or terminal). Sub-channel DTE ...

  • Black Box PSD-4 - page 9

    PSD-4 AND PSD-8 8 Figure 3. The Printed Circuit Boar d of the PSD-4. Figure 4. The Printed Circuit Boar d of the PSD-8. ...

  • Black Box PSD-4 - page 10

    CHAPTER 3: Installation 9 3.3 System Synchronization A SYNCHRONOUS M ODE Strap the J6 jumper over the ASYNC pins. All attached equipment must be asynchronous. T urn the BIT RA TE rotary switch (BRI) to the correct system speed. No other adjustments to the PSD are necessar y . S YNCHRONOUS M ODE Strap the J6 jumper over the SYNC pins (this is the fa ...

  • Black Box PSD-4 - page 11

    PSD-4 AND PSD-8 10 • BIT RA TE rotar y switch: Set BRI to the correct system speed. • EXT . BUFFER: If any of the devices connected to the sub-channels numbered 1 through 4 are set to internal clock, then switch S1 should be ON. If any of the devices connected to the sub-channels numbered 5 through 8 are set to internal clock, then switch S2 sh ...

  • Black Box PSD-4 - page 12

    CHAPTER 4: Operation and T roubleshooting 11 4. Operation and T roubleshooting 4.1 Operation T urn on the rear-panel POWER rocker switch. The front-panel POWER LED will light. The PSD operates automatically . Except for manually disabling a sub-channel, you will not need to attend to the PSD. 4.2 Changing Setting During Operation If you have to rec ...

  • Black Box PSD-4 - page 13

    PSD-4 AND PSD-8 12 Figure 5. The back panels of the PSD-4 (top) and the PSD-8 (bottom). FUSE POWER: Rocker switch to turn AC power on or off 110/220 VAC Selector: Align either 110 or 220 with the arrow. SCREWS: Loosen these screws to take off the cover of the PSD. ...

  • Black Box PSD-4 - page 14

    CHAPTER 5: T echnical Guide 13 5. T echnical Guide 5.1 Control Signals M AIN C HANNEL C ONTROL S IGNALS RTS (DCD) • In R TS/DCD contention mode: follows R TS (DCD) of the selected sub-channels. • In Data Contention mode: ON if one of the sub-channels R TS (DCD) is ON. CTS On only when the CTS signals of all active sub-channels are ON. A sub-cha ...

  • Black Box PSD-4 - page 15

    PSD-4 AND PSD-8 14 Figure 6. Main Channel DTE with Sub-Channel DCE. Figure 7. Main Channel DTE with Sub-Channel DTE. ...

  • Black Box PSD-4 - page 16

    CHAPTER 5: T echnical Guide 15 Figure 8. Main Channel DCE with Sub-Channel DCE. Figure 9. Main Channel DCE with Sub-Channel DTE. ...

  • Black Box PSD-4 - page 17

    1000 P ark Drive • Lawrence, P A 15055-1018 • 724-746-5500 • F ax 724-746-0746 © Cop yright 1998. Black Box Corporation. All rights reserved. ...

Manufacturer Black Box Category Computer Hardware

Documents that we receive from a manufacturer of a Black Box PSD-4 can be divided into several groups. They are, among others:
- Black Box technical drawings
- PSD-4 manuals
- Black Box product data sheets
- information booklets
- or energy labels Black Box PSD-4
All of them are important, but the most important information from the point of view of use of the device are in the user manual Black Box PSD-4.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Black Box PSD-4, service manual, brief instructions and user manuals Black Box PSD-4. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Black Box PSD-4.

A complete manual for the device Black Box PSD-4, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Black Box PSD-4 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Black Box PSD-4.

A complete Black Box manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Black Box PSD-4 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Black Box PSD-4, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Black Box PSD-4, that we can find in the current document
3. Tips how to use the basic functions of the device Black Box PSD-4 - which should help us in our first steps of using Black Box PSD-4
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Black Box PSD-4
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Black Box PSD-4 in a specific country, if it was not possible to solve the problem on our own.

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Comments (1)

jose

que es una Black Box psd-4 y para que sirve?