Connective Peripherals ES-R-2 01B-M Series Manual

Rs-232 to rs-422/rs-485
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RS-232 to RS-422/RS-485
The Connective Peripherals ES-R-2001B-M and ES-R-2101B-M are used to convert RS-232 signals to
RS-422/RS-485
signals.
communication devices for factory automation equipment, multi-drop data collection devices,
barcode readers, time clocks, scales, data entry terminals, PC to PC long distance communications
(up to 1.3KM) and serial communication in harsh environments.
This manual covers the following products:
ES-R-2001B-M
ES-R-2101B-M
E-Mail (Support):
support@connectiveperipherals.com
Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced
in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are
supplied on an as-is basis and no warranty as to their suitability for any particular purpose is either made or implied. Connective
Peripherals Pte Ltd will not accept any claim for damages howsoever arising as a result of use or failure of this product. Your statutory
rights are not affected. This product or any variant of it is not intended for use in any medical appliance, device or system in which the
failure of the product might reasonably be expected to result in personal injury. This document provides preliminary informat ion that
may be subject to change without notice. No freedom to use patents or other intellectual property rights is implied by the publication of
this document. Connective Peripherals Pte Ltd, 178 Paya Lebar Road, #07-03 Singapore 409030. Registered Number: 201617872E
ES-R-2x01B-M
Converters Manual
Document Reference No.: CP_000047
Version 1.2
Issue Date: 2019-03-25
The
converters
provide
Connective Peripherals Pte Ltd
178 Paya Lebar Road, #07-03 Singapore 409030
Tel.: +65 67430980
Copyright © Connective Peripherals Pte Ltd
instant
connectivity
Fax: +65 68416071
Web:
www.connectiveperipherals.com/products
to
RS-422/RS-485

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Summary of Contents for Connective Peripherals ES-R-2 01B-M Series

  • Page 1 No freedom to use patents or other intellectual property rights is implied by the publication of this document. Connective Peripherals Pte Ltd, 178 Paya Lebar Road, #07-03 Singapore 409030. Registered Number: 201617872E Copyright © Connective Peripherals Pte Ltd...
  • Page 2: Table Of Contents

    RS-485 Signal Pin-out (full duplex) ........14 6 Contact Information ............16 Appendix A - List of Figures and Tables ......17 List of Figures ................. 17 List of Tables ................... 17 Appendix B - Revision History ..........18 opyright © Connective Peripherals Pte Ltd...
  • Page 3: Introduction

    Document Reference No.: CP_000047 Clearance No.: CP#037 Introduction The Connective Peripherals ES-R-2001B-M and ES-R-2101B-M are used to convert RS-232 signals to RS- 422/RS-485 signals. The converters provide instant connectivity to RS-422/RS-485 communication devices for factory automation equipment, multi-drop data collection devices, barcode readers, time clocks, scales, data entry terminals, PC to PC long distance communications (up to 1.3KM) and serial...
  • Page 4: Specification

    RS-485 data signals (half-duplex) : Data-, Data+, GND  LEDs indicate TxD and RxD  Wide input power range : 9V DC to 48V DC  Operating temperature range : –20 C to 60 opyright © Connective Peripherals Pte Ltd...
  • Page 5: Features Of The Es-R-2X01B-M

    They also feature jumpers to set the pinout of the RS-232 port to a DCE or DTE configuration, and to enable termination and biasing when required. Please refer to section 4 for more information on the DIP switch and jumper settings available. opyright © Connective Peripherals Pte Ltd...
  • Page 6: Hardware Installation

    Pull-down Rx- to GND by 750 Ohm Bias resistor). The Tx biasing (Pull-up Tx+ to VCC by 750 Ohm Bias resistor and Pull-down Tx- to GND by 750 Ohm Bias resistor) should not be enabled as this would provide two biasing resistors per line. opyright © Connective Peripherals Pte Ltd...
  • Page 7: Rs-232 Dce Or Dte Pin Assignment

    The RS-422 & RS-485 Mode Block Configuration Settings are shown in Table 2. Operation Mode RS-422 4 wire with handshaking Full Duplex (4 wire) Half Duplex (2 wire) RS-485 with Echo Half Duplex (2 wire ) without Echo Table 2 - RS-422 and RS-485 configuration opyright © Connective Peripherals Pte Ltd...
  • Page 8: Termination And Biasing Configuration

    CTS Termination of 120 Ohm. 20-21 disable This function should be enabled for RS-422 mode. Table 3 - Termination and Biasing configuration Note: See section 4.1 for further information before setting termination and biasing opyright © Connective Peripherals Pte Ltd...
  • Page 9: Connector Pinout Information

    DSR = Data Set Ready GND = RS232 signal ground DTR = Data Terminal Ready CTS = Clear To Send RTS = Request To Send No Connect Table 5 - RS-232 Pin-Out for DB-9 connector (DCE) opyright © Connective Peripherals Pte Ltd...
  • Page 10: Rs-422 Signal Pin-Out

    TxD- = Transmit data, negative polarity TxD+ = Transmit data, positive polarity RxD+ = Receive data, positive polarity RxD- = Receive data, negative polarity GND = Signal ground Table 7 - RS-422 Pin-Out for 5-way terminal block opyright © Connective Peripherals Pte Ltd...
  • Page 11: Figure 4 - Rs-422 4 Wire Full Duplex

    Twisted pair wires are required for each signal pair. ES-R-2x01B-M RS-422 Device TxD+ RxD+ TxD- RxD- RxD+ TxD+ RxD- TxD- RTS+ CTS+ RTS- CTS- CTS+ RTS+ CTS- RTS- Figure 5 - RS-422 with handshaking signals connected opyright © Connective Peripherals Pte Ltd...
  • Page 12: Rs-485 Signal Pin-Out (Half Duplex)

    Data+ = Transmit / Receive Data, positive polarity GND = Signal ground Table 9 - RS-485 half-duplex pin-out for 5-way terminal bloc Note: Other terminals have no function in this mode and should be left unconnected. opyright © Connective Peripherals Pte Ltd...
  • Page 13: Figure 6 - Rs-485 Half Duplex Wiring

    4.1 and 4.4. These should not be enabled if another device on the bus is already providing biasing. Twisted pair wires are required for each signal pair. ES-R-2x01B-M RS-485 Devices Data+ Data- Data+ Data- Data+ Data- Data+ Data- Figure 6 - RS-485 Half Duplex Wiring opyright © Connective Peripherals Pte Ltd...
  • Page 14: Rs-485 Signal Pin-Out (Full Duplex)

    TxD- = Transmit data, negative polarity TxD+ = Transmit data, positive polarity RxD+ = Receive data, positive polarity RxD– = Receive data, negative polarity GND = Signal ground Table 11 - RS-485 full duplex pin-out for terminal block opyright © Connective Peripherals Pte Ltd...
  • Page 15: Figure 7 - Rs-485 Full Duplex Wiring

    ES-R-2x01B-M would be terminated at the receiver at the other end of the bus as shown. Twisted pair wires are required for each signal pair. ES-R-2x01B-M RS-485 Device TxD+ RxD+ TxD- RxD- RxD+ TxD+ TxD- RxD- Figure 7 - RS-485 Full Duplex Wiring opyright © Connective Peripherals Pte Ltd...
  • Page 16: Contact Information

    Global Headquarters – Singapore Connective Peripherals Pte Ltd 178 Paya Lebar Road #07-03 Singapore 409030 Tel: +65 67430980 Fax: +65 68416071 E-Mail (Sales) sales@connectiveperipherals.com E-Mail (Support) support@connectiveperipherals.com Web Site URL http://www.connectiveperipherals.com Web Shop URL http://www.connectiveperipherals.com opyright © Connective Peripherals Pte Ltd...
  • Page 17: Appendix A - List Of Figures And Tables

    Table 9 - RS-485 half-duplex pin-out for 5-way terminal bloc ............12 Table 10 - RS-485 full duplex pin-out for DB-9 connector ..............14 Table 11 - RS-485 full duplex pin-out for terminal block ..............14 opyright © Connective Peripherals Pte Ltd...
  • Page 18: Appendix B - Revision History

    Added temperature specification to section 2 2012-01-25 Updated DTE and DCE definitions in sections 5.1 and 5.2 Re-branding to reflect the migration of the product to Connective Peripherals name – logo change, 2019-03-25 copyright changed, contact information Changed, all internal hyperlinks changed.

This manual is also suitable for:

Es-r-2001b-mEs-r-2101b-m

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