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Quatech QTM-8524 User manual

Manual is about: 2.4 GHz RF Radio Modem Module FOR QTM-8000 SERIES SYSTEMS

Summary of QTM-8524

  • Page 1

    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 wireless modem module for qtm-8000 series systems.

  • Page 2

    Qtm-8524 user’s manual revision 1.0 pn.

  • Page 3: Warranty Information

    Warranty information 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, prov...

  • Page 4: Notice

    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 ...

  • Page 5: Table of Contents

    Table of contents 1. Introduction 9 1.1 available qtm-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 the qtm-8000 series network advantage 14 1.3.3 operation principle 15 1.3...

  • Page 6

    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, asynchron...

  • Page 7: List of Figures

    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-baud rate wireless qtm-8000 network 14 1.4.1 qtm-8000 series front, side, rear and top views 17 1.4.2 qtm-8000 series din rail mountin...

  • Page 8: 1.  Introduction

    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-2...

  • Page 9

    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 ...

  • Page 10

    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) ❍ a single network can accommodate multiple devi...

  • Page 11

    12 quatech qtm-8524 manual 1.3 qtm-8000 series wireless networks figure 1.3--qtm-8000 series network with multiple baud rates and multiple data formats.

  • Page 12

    Quatech qtm-8524 manual 13 1.3.1 disadvantages of conventional two-wire rs-485 networks: in a standard rs-485 network, a converter is used to adapt the host pc’s single wire rs-232 signal to the two-wire rs-485 signal required by the network. However, when using a standard converter, not only must t...

  • Page 13

    14 quatech qtm-8524 manual f ig u re 1 .3 .2 .2 --u sin g a q t m -8 52 0 c on ve rte r m od u le in co n ju n ct io n w ith m u lti pl e p ai rs o f q t m -8 52 4 m od u le s t o s u pp or t m u lti pl e b au d r at es in a w ir ele ss q t m -8 00 0 s er ie s n et w or k.

  • Page 14

    Quatech qtm-8524 manual 15 1.3.3 operation principle (refer to figure 1.3.2.1 & 1.3.2.2): (1) the host pc sends out a command via com1. (2) the qtm-8520 or upstream qtm-8524 converts the rs-232 signal into a rs-485 signal or a rf signal respectively. (3) all modules connected to the rs-485 network w...

  • Page 15

    16 quatech qtm-8524 manual 1.3.4 supporting multiple baud rates as noted earlier, qtm-8000 series networks support devices operating at different baud rates. For example, in figure 1.3 the diagram depicts a wire- less modem operating at 19200 bps, qtm-8000 series modules operating at 2400 bps and a ...

  • Page 16: Front View

    Quatech qtm-8524 manual 17 1.4 qtm-8000 series module dimensions figure 1.4.1--qtm-8000 series front, side, rear, and top views front view side view.

  • Page 17

    18 quatech qtm-8524 manual figure 1.4.2--qtm-8000 series din rail mounting.

  • Page 18

    Quatech qtm-8524 manual 19 plastic part for panel mount figure 1.4.3--qtm-8000 series panel mounting.

  • Page 19: 2.  Qtm-8524 Specifications

    20 quatech qtm-8524 manual 2. Qtm-8524 specifications 2.1 pin assignments qtm-8524 wireless rf modem frequency range: 2.4 ghz channel spacing: 2 mhz rf power output: 0.707w interface: rs-232/rs-485 1 1 2 0 1 1 0 (rs-485) dsr rx tx computer gnd (y)d+ (g)d- (r)+vs power gnd.

  • Page 20

    Quatech qtm-8524 manual 21 qtm-8524: 2.4 ghz rs-232/rs-485 to rf converter rf communication transceiver frequency band: 2426 to 2458 mhz channel spacing: 2.048 mhz (8 channels jumper select) peak output power: 28.5 dbm ±2 db (.707 watts) modulation: gaussian minimum shift keying (gmsk) time division...

  • Page 21

    22 quatech qtm-8524 manual tx rx d+ d- + v s gnd rs-232 interface rs-485 interface power regulator embedded controller transceiver gmsk rf module antenna +5v qtm-8524 2.3 qtm-8524 block diagram 2.4 qtm-8524 disassembly disassembly of the qtm-8524 is required to change the jumper settings. Please ref...

  • Page 22

    Quatech qtm-8524 manual 23 5. Snap the case back together firmly. 6. Insert the two (2) small screws in the back of the unit. 7. Place the din rail bracket back (notice locating pins on the bottom of the bracket) and secure tightly. Remove for disassembly remove for disassembly rear view figure 2.4-...

  • Page 23

    24 quatech qtm-8524 manual 2.5 qtm-8524 jumper settings factory default jumper settings are indicated below. · channel 3 · baudrate (bps) = 9600 bps · slave mode · rs-232 interface · frequency channel = 2439.936 mhz · full duplex mode · synchronous communication figure 2.5 on the following page diag...

  • Page 24

    Quatech qtm-8524 manual 25 2426.112 mhz 2430.720 mhz 2435.328 mhz 2439.936 mhz 2444.544 mhz 2449.152 mhz 2453.760 mhz 2458.368mhz (2) frequency select channel0 channel1 channel2 channel3 channel4 channel5 channel6 channel7 (1) channel select 600 bps 1200 bps 2400 bps 4800 bps 9600 bps 19200 bps 3840...

  • Page 25

    26 quatech qtm-8524 manual 2.6 qtm-8524 basic wire connections (1) position jumper 7 to rs-232 as shown (2) connect qtm-8524 gnd, tx and rx to ca-0910’s corre- sponding rs-232 gnd, tx and rx (3) connect ca-9010’s db-9 female connector to the pc’s rs-232 db-9 male connector 2.6.1 rs-232 connection be...

  • Page 26: 3.  Antennas

    Quatech qtm-8524 manual 27 3. Antennas two antennas are available for use with the qtm-8524. The standard an- tenna, qtm-24ant-sw, is for general purpose indoor/outdoor applica- tions, and can be conveniently wall-mounted on a swivel bracket. The op- tional monopole antenna, qtm-24ant-c is ideal for...

  • Page 27

    28 quatech qtm-8524 manual 3.1.2 qtm-24ant-c specifications ceiling-mount antenna type: monopole mount: ceiling frequency: 2.4 ghz gain: 3dbd weight: 0.29lb ( 0.64 kg) height: 9 in (22.9 cm) nominal impedance: 50 ohms vswr: 1.5:1 nominal transmission range: 500 meters, open line-of-sight (50m with b...

  • Page 28

    Quatech qtm-8524 manual 29 3.2 connecting antennas to qtm-8524 modules your qtm-8524 is issued with a high quality communication antenna. To get the maximum performance form your wireless system, please follow the directions and suggestions that follow. 3.2.1 site selection antenna location is extre...

  • Page 29

    30 quatech qtm-8524 manual 3.3 mounting external antennas to reduce potential radio interference to other users, the antenna type and its gain should be chosen so that the equivalent isotropically radiated power (eirp) is not more than that required for successful communication. 3.3.1 mounting the q...

  • Page 30

    Quatech qtm-8524 manual 31 figure 3.3.1.2-- mounting the qtm-24ant-sw step 7 (1) route the antenna cable through the mounting plate as shown in fig- ure 3.3.1. Do not snap the antenna to the mounting plate yet. (2) secure the molded antenna mount to the mounting plate as shown in figure 3.3.1. 1 use...

  • Page 31

    32 quatech qtm-8524 manual 3.3.2 mounting the qtm-24ant-c safety the qtm-24ant-c antenna has been designed to attach to and hang from standard ceiling panel runners. To prevent personal injury or equipment damage, the antenna must be securely mounted per the following instruc- tions. The qtm-24ant-c...

  • Page 32

    Quatech qtm-8524 manual 33 figure 3.3.2.1-- installing the qtm-24ant-c ceiling mount bracket figure 3.3.2.2-- connecting the qtm-24ant-c antenna to the ceiling mount bracket.

  • Page 33: 4. Configuration

    34 quatech qtm-8524 manual 4. Configuration 4.1 rs-232 or rs-485 configuration qtm-8524 modules can be configured for either rs-232 or rs-485 serial communication. This setting is selected using jumper seven on the module as shown: (7) rs-232 rs-485 when connecting the qtm-8524 directly to a pc, rs-...

  • Page 34

    Quatech qtm-8524 manual 35 note 1: in half duplex operation, the channel selection jumper setting need not be used. Note 2: for a multi-point application, the network must be configured for half duplex operation. Thus, qtm-8000 series data acquisition and signal conditioning modules can not be used ...

  • Page 35

    36 quatech qtm-8524 manual 4.4 configuration modes mode 1 : full duplex, synchronous peer-to-peer communication one qtm-8524 configured for master one qtm-8524 configured for slave. Maximum baudrate: 19200 bps fixed data format: 1 start bit, 8 data bits, no parity, 1 stop bit compatible with qtm-800...

  • Page 36

    Quatech qtm-8524 manual 37 4.4.1 mode 1: full duplex, synchronous mode 1 is the most common form of peer-to-peer communication. In this mode, a module first encodes the input data streams. Then, it transmits the data to the downstream qtm-8524 module. The receiving module decodes the data stream and...

  • Page 37

    38 quatech qtm-8524 manual 4.4.2 mode 2: half-duplex, synchronous mode 2 enables communication between two or more qtm-8524 modules. This allows a single qtm-8524 connected to a pc to communicate with multiple other remote qtm-8524 modules also connected to pcs or plcs. In mode 2, a single qtm-8524 ...

  • Page 38

    Quatech qtm-8524 manual 39 4.4.3 mode 3: full duplex, asynchronous using mode 3, qtm-8524 modules can be used to transmit data in any format. In mode 3, only point-to-point communication is permitted. Both qtm-8524 modules must be configured for full-duplex mode and rs-232 communication, and must sh...

  • Page 39: 5. Application Examples

    40 quatech qtm-8524 manual 5. Application examples 5.1 peer-to-peer communication (mode 1) figure 5.1 above depicts a basic serial full-duplex communication applica- tion. In this type of application, both qtm-8524 modules are configured for the same baud rate, frequency and channel. Rs-232 rs-232 q...

  • Page 40

    Quatech qtm-8524 manual 41 5.2 interfacing with qtm-8000 modules (mode 1) rs-232 rs-485 qtm-8524 qtm-8524 qtm-8524 configuration: interface: rs-232 full duplex synchronous master baudrate: 19200 bps max channel: 1 qtm-8524 configuration: interface: rs-485 full duplex synchronous slave baudrate: 1920...

  • Page 41

    42 quatech qtm-8524 manual 5.3 multiple pc communication (mode 2) rs-232 qtm-8524 rs-232 rs-232 qtm-8524 qtm-8524 qtm-8524 configuration: (all modules) interface: rs-232 half duplex synchronous slave baudrate: 57600 bps max figure 5.3--qtm-8524 modules used to network multiple pcs figure 5.3 above d...

  • Page 42

    Quatech qtm-8524 manual 43 5.4 asynchronous communication (mode 3) rs-232 rs-232 qtm-8524 qtm-8524 plc qtm-8524 configuration: interface: rs-232 full duplex asynchronous master baudrate: up to 14.4 kbps qtm-8524 configuration: interface: rs-232 full duplex asynchronous slave baudrate: up to 14.4 kbp...

  • Page 43: 6. Approvals

    44 quatech qtm-8524 manual fcc approvals the qtm-8524 is approved pursuant to fcc part 15.247 for intentional spread spectrum radiators (47cfr15.247) while being used with the quat- ech supplied antennas (qtm-24ant-sw and the qtm-24ant-c). This certification is applicable in the united states and al...

  • Page 44

    Quatech qtm-8524 manual 45 doc approvals (canada) the qtm-8524 is approved for use in accordance with rss-210 and rss- 139. To prevent radio interference to the licensed service, this device is in- tended to be operated indoors and away from windows to provide maxi- mum shielding. Equipment (or its ...

  • Page 45

    46 quatech qtm-8524 manual cut this template out of the manual and use it as a guide for drilling the holes needed to install your qtm-24ant-sw wall- mount antenna. Qtm-24ant-sw hole template.