Laird CL4790 Hardware Integration Manual Download

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CL4790 Hardware Integration Guide

Version 3.0

Americas: +1-800-492-2320 Option 2
Europe: +44-1628-858-940
Hong Kong: +852-2923-0610

www.lairdtech.com/ramp

CONN-HIG_CL4790

ELATED

OCUMENTS AND

ILES

The following additional CL4790 technical documents are also available from the Laird RAMP ConnexLink
modules product page under the Documentation tab:



Product Brief



CL4790 User Guide

The following downloads are also available from the Laird RAMP ISM modules product page:



Configuration Utility



USB Drivers

Summary of Contents for CL4790

Page 1: ...CL4790 HARDWARE INTEGRATION GUIDE VERSION 3 0 Americas 1 800 492 2320 Europe 44 1628 858 940 Hong Kong 852 2923 0610 www lairdtech com ramp...

Page 2: ...posure Installation Instructions WARNING To satisfy FCC RF exposure requirements for mobile transmitting devices this equipment must be professionally installed such that the end user is prevented fro...

Page 3: ...790 REVISION HISTORY Version Date Changes Approved By 1 0 Initial Release Chris Downey 1 1 Changes and Revisions Chris Downey 2 0 02 Aug 2013 Major changes and revisions updated format and data Chris...

Page 4: ...940 Hong Kong 852 2923 0610 www lairdtech com ramp 4 CONN HIG_CL4790 CONTENTS Revision History 3 Contents 4 CL4790 RF Transceiver 5 Overview 5 Features 5 Detailed Specifications 6 Status LEDs 7 Seria...

Page 5: ...es several transceiver pairs to carry on simultaneous conversations on the same network CL4790s implement a proprietary communication protocol to provide secure data transmissions Using FHSS technolog...

Page 6: ...Canada 915 928 MHz US Canada Australia RF Data Rate 76 8 Kbps fixed Host Data Throughput 20 5 Kbps maximum RF Technology Frequency Hopping Spread Spectrum FHSS EEPROM write cycles 20000 Hop Period 50...

Page 7: ...ecautions when handling this device to prevent permanent damage External ESD protection is required to protect this device from damage as required to pass IEC 61000 4 2 or ISO 10605 based on end syste...

Page 8: ...re represented by voltage levels with respect to a system common power logic ground The idle state MARK has the signal level negative with respect to common and the active state SPACE has the signal l...

Page 9: ...hrough serial cable When interfacing two DCE or two DTE devices together a null modem cable or crossover cable is required to swap the pins and convert the signals accordingly Figure 3 DTE to DCE inte...

Page 10: ...que addresses and can send addressed packets to specific nodes Because the bus is half duplex no two nodes should try to talk at the same time The CL4790 does not have a RS485 address therefore it tra...

Page 11: ...e potential to be lost due to buffer overflow Ready to Send RTS is an input to the CL4790 from the OEM host When the RTS Enable option is selected in the software configuration of the CL4790 the trans...

Page 12: ...RMM 915 Nearson 1 2 Wave Dipole 2 X 0600 00024 S467AH 915 Nearson 1 2 Wave Dipole 2 X 0600 00027 S467AH 915R Nearson 1 2 Wave Dipole 2 X 0600 00028 S161AH 915R Nearson 1 2 Wave Dipole 2 5 X 0600 00029...

Page 13: ...3 CONN HIG_CL4790 RELATED DOCUMENTS AND FILES The following additional CL4790 technical documents are also available from the Laird RAMP ConnexLink modules product page under the Documentation tab Pro...

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