Black Box IC155A Manual
Black Box IC155A Manual

Black Box IC155A Manual

Rs-485 repeater; rs-485 repeater (opto-isolated)
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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

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Summary of Contents for Black Box IC155A

  • Page 1 ©Copyright 1998. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...
  • Page 2 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 SUPPORT Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 3 FEDERAL COMMUNICATIONS COMMISSION CANADIAN DEPARTMENT OF COMMUNICATIONS 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.
  • Page 4 RS-485 Repeater and RS-485 Repeater (Opto-Isolated) 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 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.
  • Page 6: Table Of Contents

    RS-485 Repeater and RS-485 Repeater (Opto-Isolated) Contents Chapter Page 1.0 Specifications................7 2.0 Introduction................8 2.1 Optical Isolation ............... 8 2.2 Indicators and Connectors..........8 3.0 Installation ................9 3.1 Setting Jumpers and Switches.......... 9 3.2 Connecting the Repeater to Your Network ....11 Appendix..................
  • Page 7: Specifications

    CHAPTER 1: Specifications 1.0 Specifications Speed — Transparent to baud rate Interface — RS-485 up to 128 Kbps Connectors — (2) 4-screw terminal Maximum distance — 4000 ft. block; (2) RJ-45, (1) edge card (1.2 km) connector Operation — Full- or half-duplex Power —...
  • Page 8: Introduction

    RS-485 Repeater and RS-485 Repeater (Opto-Isolated) 2.0 Introduction The RS-485 Repeaters extend your communications, and the difference RS-485 communications beyond the in ground potential between 4000-foot limit. Even located 5000 buildings won’t damage your feet from your master device, they’ll sensitive equipment.
  • Page 9: Installation

    CHAPTER 3: Installation 3.0 Installation Installing the RS-485 Repeater in When both are in the BC your setup is simple: Just set position, the Repeater is set for internal jumpers and switches to 4-wire cabling and either half- your application, connect your or full-duplex operation.
  • Page 10 RS-485 Repeater and RS-485 Repeater (Opto-Isolated) Power Connector Edge Card Connector PORT RJ-45 Connectors PORT Optical isolation circuitry Fig. 3-2. The Opto-Isolated Repeater Circuit Board. Repeater's transmitter is See Table 3-1 for the setting turned off after sending a that's right for your signal, and the Repeater's application.
  • Page 11: Connecting The Repeater To Your Network

    CHAPTER 3: Installation NOTE: The greater the length of 3.2 Connecting the Repeater to Your the RS-485 line and/or the larger Network. the number of drops on the After the RS-485 Repeater has network, the longer the line will been configured for your remain charged after the application, connect it to your RS- transmitter has been disabled.
  • Page 12 RS-485 Repeater and RS-485 Repeater (Opto-Isolated) 2.To connect the Repeater to To set the Repeater for 4-wire your network via the modular operation, follow the steps under connectors (J1 and J2), use . (See Fig. Cabling to Your Network either RJ-45 or RJ-11 cables. 3-4 for general information on Make sure these cables are connecting master and slave devices...
  • Page 13 CHAPTER 3: Installation RS-232 Printer Smart Minus (-) line Node Plus (+) IC485 line (End of line) Bar Code Scale Reader Port B Minus (-) (terminated) Plus line (+) line Port A (terminated) RS486 Repeater RS485 Twisted-Pair (Opto-Isolator) Pump Wiring Data Logger Terminated...
  • Page 14 RS-485 Repeater and RS-485 Repeater (Opto-Isolated) Port A Port B Network 2 Master Network 1 Slave RDA- TDA- TXD- RDA- Signal Flow RDB+ TDB+ TXD+ RDB+ RXD- TDA- TDA- RDA- RXD+ TDB+ Signal Flow TDB+ RDB+ RS-485 RS-485 (Slave) (Slave) Fig.
  • Page 15: Appendix

    Appendix Appendix the Repeater transmitter and being A.1 The RS-485 Repeater Delay passed as data. Typically, noise on Circuitry the RS-485 line is an electrical signal of very short duration. If The Repeater uses three different noise should reach the RS-485 types of delays: a Turn-around receiver on Port A in Fig.
  • Page 16: Connector Pinning

    RS-485 Repeater and RS-485 Repeater (Opto-Isolated) Table A-2. RJ-45Connector Pinning the transmitter is ready to send. Thus the delay circuitry keeps noise from being passed along by the Pins Signal Repeater. The turn-ON delay for Not connected the RS-485 Repeater has been Not connected factory-set to @3.3 µsec.
  • Page 17: Network Performance

    Appendix A.3 Network Performance Signal speed on any communication line is directly dependent on the distance the signal must travel. Table A-3 shows speed versus distance characteristics for a 4-wire point-to-point application using 24 AWG twisted-pair wiring. TableA-4.DataCommunication Rates Speed Distance in bps in miles (km)
  • Page 18: Quick Setup Guide

    RS-485 Repeater and RS-485 Repeater (Opto-Isolated) Quick Setup Guide Quick Setup Guide This chapter is designed to help the Follow these steps for experienced user get the RS-485 full-duplex operation: Repeater installed and running as quickly as possible. (Figure 3-1 or •...

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