Black Box ClassWork Plus Manual
  1. Manuals
  2. Brands
  3. Black Box Manuals
  4. Multiplexer
  5. ClassWork Plus
  6. Manual
Black Box ClassWork Plus Manual

Black Box ClassWork Plus Manual

Line multiplier
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
JUNE 2001
AC817A
AC817AE
ClassWork Plus Line Multiplier
CUSTOMER
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
SUPPORT
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
INFORMATION
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com

Advertisement

Table of Contents
loading

Related Manuals for Black Box ClassWork Plus

Summary of Contents for Black Box ClassWork Plus

  • Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) SUPPORT FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 INFORMATION Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 2 FCC INFORMATION 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 when the equipment is...
  • Page 3 CLASSWORK PLUS LINE MULTIPLIER 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 4 NOM STATEMENT 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.
  • Page 5 CLASSWORK PLUS LINE MULTIPLIER TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.

  • Page 6: Table Of Contents

    2. Introduction ..........7 2.1 Designing a ClassWork Plus Classroom Using the Line Multiplier . . 7 2.2 What the Package Includes .

  • Page 7: Specifications

    CLASSWORK PLUS LINE MULTIPLIER 1. Specifications Input Signal: Input: R, G, B video signals, 200 MHz, 1.6 Vpp Sync: Input: H, V, TTL Sync Range: Horizontal: Up to 100 kHz; Vertical: Up to 100 Output Video Gain: Output: R, G, B video signals 200 MHz, 1.6 Vpp...

  • Page 8: Introduction

    CPUs in the classroom. 2.1 Designing a ClassWork Plus Classroom Using the Line Multiplier The following example will explain how to set up a ClassWork Plus classroom of 30 students using one Line Multiplier (see Figure 2-1).

  • Page 9: What The Package Includes

    • ClassWork Plus Line Multiplier • (1) 6.6-ft. (2-m) System cable • (1) Power supply (110-VAC for AC817A, 220-VAC for AC817AE) • (4) DB25 terminators • This users’ manual If anything is missing or damaged, please call Black Box at 724-746-5500.

  • Page 10: Installation

    Turn OFF all CPUs before installing the Line Multiplier. 3.2 Connecting the System Figures 3-1 and 3-2 show the front and rear panels of the ClassWork Plus Line Multiplier. Figure 3-3 shows a diagram of the ClassWork Plus system. Refer to these diagrams when connecting the various cables.
  • Page 11 CPU 16 CPU 14 CPU 17 CPU 18 CPU 20 CPU 19 CPU 21 CPU 22 CPU 23 CPU 24 CPU 29 CPU 25 CPU 26 CPU 27 CPU 28 CPU 30 Figure 3-3. The ClassWork Plus Line Multiplier system.

  • Page 12: Connecting The Line Multiplier

    CHAPTER 3: Installation 3.3 Connecting the Line Multiplier To connect the Line Multiplier to the ClassWork Plus system: Connect the DB25 male connector from the System cable (see Figure 3-4) to the System In port of the Line Multiplier. System Cable...

  • Page 13: Connecting Branch 1

    CLASSWORK PLUS LINE MULTIPLIER 3.4 Connecting Branch 1 The System cable from Student Interface Unit (SIU) 7 is used to connect Branch 1 to the Line Multiplier (see Figure 3-6). To connect this cable: 1. Connect the DB25 male connector of the System cable (see Figure 3-4) to the Branch 1 port of the Line Multiplier.

  • Page 14: Connecting Branch 3

    CHAPTER 3: Installation 3.6 Connecting Branch 3 The System cable from Student Interface Unit (SIU) 19 is used to connect Branch 3 to the Line Multiplier (see Figure 3-8). To connect this cable: 1. Connect the DB25 male connector of the System cable (see Figure 3-4) to the Branch 3 port of the Line Multiplier.

  • Page 15: Connecting The Terminators

    DB25 male Figure 3-10. Terminator. 3.9 Connecting the Power Supply Insert the power-supply plug into the 9-VAC power port on the rear of the ClassWork Plus Line Multiplier, and plug the cord into a wall socket. To Wall Socket Power Supply...

  • Page 16: Setting The Dip Switches

    CHAPTER 3: Installation 3.10 Setting the DIP Switches Each branch of the ClassWork Plus Line Multiplier contains two DIP switches. You must set these DIP switches to the Student Number of the first and last student in each branch. Take a look at Figure 3-12. Tables 3-1 and 3-2 show you how to set the DIP switches for this application.
  • Page 17 CLASSWORK PLUS LINE MULTIPLIER NOTE All of the Line Multiplier’s unused branches must have their DIP switches set to that of a Virtual Branch (student station numbers that do not exist in the system). If your system consists of 16 student stations (8 student stations...
  • Page 18 CHAPTER 3: Installation Table 3-2 (continued). Setting the Student Number. Student No. Switch Number...
  • Page 19 CLASSWORK PLUS LINE MULTIPLIER Table 3-2 (continued). Setting the Student Number. Student No. Switch Number 0=OFF, 1=ON...

  • Page 20: Operation

    To operate the ClassWork Plus Line Multiplier: 1. Turn on all CPUs. 2. Turn on the Power switch on the rear of the ClassWork Plus Line Multiplier. LED Indicators The ClassWork Plus Line Multiplier’s front panel contains three LED indicators for each branch.
  • Page 21 CLASSWORK PLUS LINE MULTIPLIER Table 4-1. LED status. LED Name LED Status: ON LED Status: OFF Branch Status Indicates that the Indicates that the branch is functioning branch is not functioning properly. properly. Function Status Indicates that a ClassWork Indicates that no...
  • Page 22 © Copyright 2001. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

Table of Contents