Quatech QTM-8524 Manual de usuario
QTM-8524
2.4 GHz RF Radio Modem Module
Users Manual
QUATECH, Inc. TEL: (330) 434-3154
662 Wolf Ledges Pkwy FAX: (330) 434-1409
Akron, Ohio 44311 http://www.quatech.com
WIRELESSMODEMMODULE
FORQTM-8000 SERIESSYSTEMS
QTM-8524
User’s Manual
Revision 1.0
PN
WarrantyInformation
Quatech Inc. warrants the QTM-8524 to be free of defects for one
(1) year from the date of purchase. Quatech Inc. will repair or replace any
system component that fails to perform under normal operating conditions
in accordance with the procedures outlined in this document, provided the
failure occurs during the one year warranty period. Any damage resulting
from improper installation, operation or general misuse voids all warranty
rights. No representation is made regarding the suitability of this product
for any particular purpose.
Please complete the following information and retain for your records.
Date of Purchase:
ModelNumber: QTM-8524
Product: 2.4 GHz RF Radio Modem_
Serial Number:
All products returned to Quatech for either warranty or non-
warrantyrepairMUSTbeassignedaReturnedMaterialAuthorization(RMA)
numberprior to shipment. ThisRMA number mustbe clearly markedon the
exterior of the product’s return packaging and in any correspondence to
ensure proper routing and prompt attention. To obtain an RMA number,
contact the Quatech Technical Support Department at 1-800-553-1170 or
(330) 434-3154. In order to prevent damage to returned merchandise during
shipment, please package electronic components in anti-static/shock proof
materials.
For warrantyrepair/returns,please have the following informationavailable
when contacting the Technical Support department:
1. Modelnumber and serialnumber of the product under warranty,
2. Repair instructions and/or specific description of the problem.
For non-warranty repairs or upgrades, contact the Technical Support
department for current repair charges and please have the following
information available:
1. Purchase order number to cover the cost of the service,
2. Model number and serial number of the product,
3. Repair or upgrade instructions relative to the product.
Notice
The information contained in this document cannot be
reproduced in any form without the written consent of Quatech
Inc. Any software programs accompanying this document can
be used only in accordance with any licensing agreement(s)
between the purchaser and Quatech Inc. Quatech Inc. reserves
the right to change this documentation or the product to which
it refers at any time and without notice.
The authors have taken due care in the preparation of this
document and any associated software program(s). Every
attempt has been made to ensure accuracy and completeness.
Underno circumstanceswill QuatechInc. beliable fordamages
of any kind, incidental or consequential, in regard to or arising
from the performance or form of the materials presented herein
or in any software program(s) that may accompany this
document.
Quatech Inc. encourages and appreciates feedback concerning
this document. Please send any written comments to the
Technical Support Department at the address listed on the
cover of this manual.
Table of Contents
1. Introduction 9
1.1 AvailableQTM-8000 Series Modules 10
1.2 QTM-8000 Series Common Features 11
1.3 QTM-8000 Series Wireless Networks 12
1.3.1 Disadvantages of Conventional Two-Wire
RS-485 Networks 13
1.3.2 TheQTM-8000 Series NetworkAdvantage 14
1.3.3 Operation Principle 15
1.3.4 Supporting Multiple Baud Rates 16
1.4 QTM-8000 Series Module dimensions 17
2. QTM-8524 Specifications 20
2.1 Pin Assignments 20
2.2 QTM-8524 Module Specifications 21
2.3 QTM-8524 Block Diagram 22
2.4 QTM-8524 Disassembly 22
2.5 QTM-8524 Jumper Settings 24
2.6 QTM-8524 Basic Wire Connections 26
2.6.1 RS-232 Connection Between PC and QTM-8524 26
2.6.2 Connecting QTM-8000 Modules to the QTM-8524 26
3. Antennas 27
3.1 QTM-8524 Antenna Options 27
3.1.1 QTM-24ANT-SWSpecifications 27
3.1.2 QTM-24ANT-C Specifications 28
3.2 Connecting Antennas to QTM-8524 Modules 29
3.2.1 SiteSelection 29
3.2.2 Installation 29
3.2.3 Connection 29
3.3 Mounting External Antennas 30
3.3.1 Mountingthe QTM-24ANT-SW 30
3.3.2 Mountingthe QTM-24ANT-C 32
3.3.3 RFSafety 34
4. Configuration 34
4.1 RS-232 or RS-485 Configuration 34
4.2 Half-Duplex and Full-Duplex Operation 34
4.3 Synchronous and Asynchronous Communication 35
4.4 Configuration Modes 36
4.4.1 Mode 1: Full-Duplex, Synchronous 37
4.4.2 Mode 2: Half-Duplex, Synchronous 38
4.4.3 Mode 3: Full-Duplex, Asynchronous 39
5. Application Examples 40
5.1 Peer-to-Peer Communication (Mode 1) 40
5.2 Interfacingwith QTM-8000 Modules (Mode 1) 41
5.3 MultiplePC Communication (Mode2) 42
5.4 Asynchronous Communication (Mode 3) 43
6. Approvals 44
List of Figures
1.3 QTM-8000 Series Network with Multiple Baud Rates
and Multiple Data Formats 12
1.3.2.1 Single Baud Rate QTM-8000 Wireless Network 13
1.3.2.2 Multi-BaudRate Wireless QTM-8000Network 14
1.4.1 QTM-8000 Series Front, Side, Rear and Top Views 17
1.4.2 QTM-8000 Series DIN Rail Mounting 18
1.4.3 QTM-8000 Series Panel Mounting 19
2.3 QTM-8524 Block Diagram 22
2.4 Disassembling the QTM-8524 23
2.5 QTM-8524 Jumper Settings 25
2.5.1 Connecting QTM-8524 to DB-9 Serial Cable 26
2.5.2 Connecting QTM-8524 to QTM-8000 I/O Modules 26
3.1.1 QTM-24ANT-SW Transmission Pattern 27
3..1.2 QTM-24ANT-C Transmission Pattern 28
3.3.1.1 Mounting the QTM-24ANT-SW Steps 1-6 30
3.3.1.2 Mounting the QTM-24ANT-SW Step 7 31
3.3.2.1 Installing the QTM-24ANT-C Ceiling Mount Bracket 33
3.3.2.2 ConnectingtheQTM-24ANT-C Antenna to theBracket 33
5.1 QTM-8524 Peer-to-Peer Communication 40
5.2 QTM-8524 as part of a QTM-8000 Series I/O Network 41
5.3 QTM-8524 Modules Used to Network Multiple PCs 42
5.4 QTM-8524 Modules in an Asynchronous Network 43
Quatech QTM-8524 Manual 9
1. Introduction
The QTM-8000 Series of modules is comprised of analog and
digital I/O modules designed for a wide variety of data ac-
quisition and signal conditioning functions. These modules
are designed for an RS-485 communication network, and re-
quire an RS-485 to RS-232 converter in order to be accessed
through a standard PC serial port. The QTM-8520/8520R
module performs this function. Unlike many other convert-
ers, the versatile QTM-8520 contains a unique self-tuner ASIC
that allows it to process signals from multiple serial devices
operating at different baud rates and using different data for-
mats. This flexibility makes a QTM-8000 Series network an
extremely cost effective solution for remote signal monitoring
and control.
The QTM-8524 is a radio modem module that can implement
QTM-8000 Series modules as a wireless data acquisition and
signal conditioning network. The wireless communication
modules form RF communication between peer-to-peer or
multi-point structures, which eliminates the use of long cables.
Like the QTM-8520, the QTM-8524 functions as a RS-485 to
RS-232 converter. However, it does not contain the self-tuner
ASIC which means that all modules operating in a QTM-8524
wireless network must be functioning at the same baud rate
and using the same data format. To implement a wireless net-
work functioning at several different baud rates, a QTM-8520
module must be used in conjunction with multiple pairs of
QTM-8524 modules.
10 Quatech QTM-8524 Manual
1.1 Available QTM-8000 Series Modules
Wireless Radio Modem Modules:
QTM-8524: 2.4 GHz RF to RS-232 or RS-485 converter
Bus Conversion and Repeater Modules:
QTM-8520: RS-232 to RS-485 converter with 3000V isolation
QTM-8520R: RS-232 to RS-485 converter with 3000V isolation
QTM-8510: RS-485 to RS-485 repeater with 3000V isolation
DigitalI/O Modules:
QTM-8050: 7 digital input s, 8 TTL compatible digital outputs
QTM-8052: 8 isolated digital input channels
QTM-8060: 4 isolated digital inputs, 4 digital relay outputs
Analog Output Modules:
QTM-8021: Single channel analog (current or voltage) output
Analog Input Modules:
QTM-8013D: Single channel RTD analog input
QTM-8014D: 1 analog input, 1 digital input, 2 digital outputs,
with LED display.
QTM-8017: 8 channel analog input module
QTM-8018: 8 channel thermocouple input module
Timer/Counter Modules:
QTM-8080D: 2 independent 32-bit counters,
2 digital output channels
5 Hz to 50kHz frequency measurement range
Quatech QTM-8524 Manual 11
1.2 QTM-8000 Series Common Features
Communication :
❍Asynchronous half-duplex 2-wire RS-485 network
❍Maximum network distance without repeater=4000 feet (1.2Km)
❍Baud Rates: 600,1200,2400,4800,9600,19200,38400,57600 (bps)
❍Asingle network canaccommodate multiple devices with different
baud rates and data formats
❍QTM-8000 series data format=
1 start + 8 data + 1 stop + no parity = 10-bit
❍Two extra checksum bytes can be enabled or disabled
❍Built-in transient voltage suppressor and PTC protector
❍ASCIIcommand/response protocol
❍Plug-in screw terminal block
Power :
❍+10V ~ +30V DC
❍Powerreverse protection, over-voltage brown-out protection
System :
❍Internal Dual watchdog, power-on start value and safe value
for host failure
❍Operating temperature : -10 to 70ºC (14 to 185ºF)
❍Storage temperature : -25 to 80ºC(-13to 185ºF)
❍Humidity : 5 to 95%, non-condensing
❍Isolation voltage : 3000 VDC
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