Charier 1.
Chapter 1. System Overview Chapter 1: System Overview The AP-WM is a field telemetry unit for automated remote meter reading (AMUR. based on the general purpose AP-TX Remote Unit. The unit is designed to operate in a “fixed network” configuration, which proves highly economical, owing to the large reception range achieved while maintaining high reliability of the communication link. The network operates in the ISM (Industrial, Scientific, Medical) frequency range of 903.6 926.2 MHz.
Chapter 1. System Overview The Base § The system of Base Stations provides the link between the Remote Units and the Control Center. The Base Stations receive Up link transmissions from the Remote Units. They perform the digital signal processing necessary to widespread the signal, which is then conveyed to a host PC and on to the Control Center via a dedicated line. The Remote Units The Remote Units transmit RF signals to the Base Stations. Their operation is controlled by a micro controller.
Chapter 1. System Overview FCC Requirements [his equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate frequency energy and if not installed and used in accordance with the instructions. may cause harmful interference to radio communication. However.
Chapter 2: Remote Unit Description The AP-WM The unit includes a support board (spacer). batteries, a shielded Direct Sequence Spread Spectrum (“DS SPECS) transmitter and CPU circuit, an 1/0 circuit and a printed antenna. fitted in a plastic spray-proof (IP-64) box. The I/O circuit translates pulses of dry contact. to digital signals stored by the unit. The dry contact pulses are generated by a magnetic interface to a water meter. or any other pulse generating interface.
Chapter 2. Remote Unit Description — Transmitter — External memory The I/O (Input/Output) Module The I/O module conveys logical, digital and power inputs to the unit's transceiver, and carries signals and messages from the microprocessor to the application. It thus provides the physical interface with the application and the connection with the power supply. The application interface includes a terminal block with 12 inputs.
Chapter 2 Remote Unit Description Transmission is initiated in one of the following ways: o Cyclical initiation messages are transmitted at regular intervals. o Status Alert tamper inflicted on the Unit eo User initiation a request entered on a PC connected to the se ial port.
Chapter 3: Installing the Remote Unit Installing the AP-WM Installation Kit » Four mounting screws and wall inserts. or pipe mounting kit Installation template Required tools » 47 flat screwdriver » Phillips 47 screwdriver Mounting the AP-Wm Unit on the Wall I. Mount/connect the inputs to the proper devices (e.g. water meters). = Choose a convenient position for the Unit. © Mark the position of the holes to be drilled on the wall. using the template. 4. Drill the four holes and insert the wall inserts. 5.
Charier 3, Installing the Remote Unit Installing the Software The software used in order to program the Unit is provided on a 3.5” diskette containing: » Host PC software “tx 126a.exe” « Auxiliary software “mensurable” Note: The software runs under MS DOS. Make sure that this operating system is available on the host PC. To install the software: I. Copy the following files from the 3.57 diskette to the host PC root directory: « x126a.exe * mensurable 2.
Chapter 4: Operating the System This chapter describes in detail the operation of the Remote Unit. It includes a description of the user interface and operating instructions, Operating the AP-WM With Patel's remote unit software you can: o Read, set and update transmitter parameters « Send messages The Transmitter Parameters Main Screen Figure 4 | shows the Main Screen as it appears when you operate the software. For information about installing the software. see Chapter 3.
Chapter 4. Operating the System The Transceiver Parameters Window The Commands Dialog Box The Hot Key Bar Appears as a background window. When clicked, the window is activated, and allows vou to enter or change parameters. Appears as a foreground window. Allows you to enter and send commands. Displays hot keys for exiting the program and closing a window, You can use both the mouse and the keyboard to move around in & window. + To move the cursor to the Menu Bar, press the F10 key.
Chapter 4. Operating the System . Windows, Boxes and Features = Menu Calculable taro Calendar: Figure 4 2: The = Menu Video mode Reduces font size to include more information on the screen. To return to normal mode, click Video mode again. About General information about the software. Calculator Enables use of built in calculator, using the mouse only. Calendar Opens multi-year calendar with current date highlighted.
Chapter 4. Operating the System Change dir. Displays the Change Directory dialog box, which includes a Directory Name list box and the corresponding Directory Tree display, To change the directory. choose a directory from the list and click “Chair. DOS shell Enables you to work in DOS, Exit Enables you to exit the program. Commands Menu Open Commands Opens the Commands dialog box.
Chapter 4. Operating the System Telemetry Menu @ File: Conman's Figure 4 5: The Telemetry Menu Open Telemetry Window Save Telemetry Window Restore Telemetry Window Opens a window displaying information about the transceivers general parameters. Opens a dialog box that allows you to save telemetry files. Enter a file name in the Name field, or select a file from the Files list and click OK. Opens a dialog box that allows you to restore telemetry files.
Chapter 4. Operating the System Options Menu Figure 4 7: The Options Menu Colors Opens the Colors dialog box. In this box you choose foreground and background colors for different groups of items. Graphic Opens the Graphic dialog box. In this box you change the graphic representation of the open windows. Commands List {accessed from Command dialog box) Figure 4 8: The Commands List Transmit Data Sends the default message to the air.
Chapter 4. Operating the System Read Configuration Reset Water Meter Readings Set Unit Configuration t and Read Timing Parameter Set Meter Parameters Port Reads the current configuration and presents the parameters on the main window. Resets to zero the water meter readings.
