D200-1 V2 OPERATORS MANUAL

D200-1 v2 OPERATORS MANUAL

JANA INTERNATIONAL LTD

ANI Decoder

D200-1 v2

OPERATORS MANUAL

D200-1 v2

JANA International Ltd Tel: +44 (0)1202 673636

4, Benson Road, Fax: +44 (0)1202 675701

Poole, Dorset. E-mail:

BH17 0GB /UK Website: http://www.janainternational.com

Contents:

1. Description

2. Basic Operation

3. Connections

4. User Software

4.1 Files

4.2 Module Installation

4.3 Programming

4.4 User Configurations

4.5 User Menu

5. Wiring Schematics

5.1 Product Wiring Schematic

5.2 Analogue Decoder Circuit

5.3 Display Circuit

5.4 GE-Star Decoder Circuit

1. DESCRIPTION

The D200-1 is a modular decoder designed to decode Automatic Number Identification (ANI) tone sets. An incoming analogue signal is analysed for signal integrity, and then processed by the active tone set selected/programmed. The user can set-up a number of parameters to control the decoding and the sequence of events to prime the decoder. In addition, the D200-1 can either operate as a stand-alone unit or can be combined with a PC to enable data recording. Any frequency toneset can be used with the D200-1 decoder (including non-standard sets), depending on which tone module the D200-1 is programmed with. The decoder frequency installation is described under the User Software section. The D200-1 can either be programmed at manufacturer (which can always be later updated) or by the user; however the user software will only operate with the modules obtained by the manufacturer to customer specification.

Note: This manual covers the decoding of analogue tones, in the case of GE-Star digital tones they are handled by a separate PCB, which requires only an audio input to function.

2. BASIC OPERATION

There are three signal inputs into the D200-1 decoder unit. These are:

»Analogue Input
»Squelch Input
»PTT (if switching between Rx and Tx)

N.B. It is recommended to use the squelch control where possible to ensure valid decoding of the tones. The squelch signal can be user selectable active high or low. When the base station / radio set is receiving an active call signal, the squelch will lift to enable the radio speaker to sound. The tones will therefore follow within a predetermined time. This will allow the decoder to register the tones in a preset time frame.

The decode start sequence requires a valid squelch signal input. When the active edge is asserted, the D200-1 initiates the beginning of a decode sequence. There is usually a front porch timer which separates the beginning of transmission (indicated by the start transition of the squelch signal) and the beginning of the tone sequence. If ‘Use Front Porch Timer’ option is checked, then the decoder must be programmed with exactly the same timeout as the front porch timing used in the fleet of radios. A mismatch of the programmed value may result in invalid decoded data. If the ‘Use Front Porch’ option is not checked, then the decoder will wait until the start of the tones is received. The decoding of the tones will continue until all the tone sequence has been completed for the active call, i.e. when the number of tones decoded (set by either the user or set by manufacturer) are complete, then the decoder will be put in standby mode until the loss of the active squelch signal. The decoder will then continue to wait until the next active assertion of the squelch signal.

This is shown in the diagram below.

3. CONNECTIONS

At the rear of the unit is a 5-pin DIN connector which supplies the power and signals, next to this is the off/on switch. On the other side is 9-pin ‘D’ connector which links the unit to a computer for programming, next to this is the program switch. When this is on the unit is in program mode and will accept the download of a new tone set or parameters.

Program mode should be selected then the unit switched on then the D200.EXE program run from the computer to initiate download. More information on programming is available in the user software section.

DIN Socket Connections

1 / +9v to 18v DC
2 / Ground
3 / PTT
4 / Squelch
5 / Audio Input

4. USER SOFTWARE

PC software Installation:

Minimum Requirements: Win 3.x, Win 9x, Win 2k, Win XP, Win ME

1Mb Hard drive space available for installation

At lease 1 comm port for serial programming

386 processor at 66MHz or better

Mouse control

To install software, make a directory on the hard drive and unzip/copy the contents of the floppy disk labelled 'D200-1 installation disk' into the directory. If desirable, make a shortcut to the files onto the desktop

4.1 FILES

D200.EXE Main executable file for programming the D200-1 unit

INSTALL.EXE File used when installing new tone sets (use with *.mod)

MODULE.NLI Contains the data for the installed modules

*.MOD Upgrade toneset module (this file type is installed using install.exe)

VBRUN200.DLL Dynamically Linked Library, for use with D200.exe

MSCOMM.VBX Communications control

Standard Modules: Standard tone sets: ZVEI1, EEA

Non-Standard Modules: Any tone set not listed above is available as a module, providing all tones are within the 300Hz to 3300Hz bandwidth. Contact JANA International for complete information and custom modules available

4.2 MODULE INSTALLATION

To install the new module, locate the directory in which the D200.exe, module.nli and install.exe file is found. Copy the new module file *.mod from the disk (or by email) into the same directory as the D200.exe file. From Windows Explorer click on the file 'install.exe'. The user will be prompted to enter the filename of the *.mod file. After entering the filename, the data in the *.mod file will be appended to module.nli.

4.3 PROGRAMMING

To program the D200-1, the following are required: PC with serial 9-Pin ‘D’ connector, 9-pin male/female serial lead. The D200-1 must be fitted with a user programming interface connector.

Connect the female end of the serial lead into the PC. Connect the other end into the D200-1 unit. Switch unit to program mode and power up the D200-1. Serial communication protocol is 9600 baud, 8 bit, no parity, 1 stop bit.

4.4 USER CONFIGURATIONS

Tone Length:

Tone length defines the length of time for each tone to be active. This must not be less than the defined minimum tone length time

Attenuation:

The attenuation level is set in db (decibels). This level should be set according the requirements of the radio. If the radio signal is large, then the decibel level should increase. (Decibel is the level of attenuation of the input signal before signal processing). The attenuation will affect the digital squelch level.

Front Porch Time (mS):

This is the time between the squelch control active level change and the beginning of the first tone. If a digital squelch is used, the front porch is disabled. If no squelch signal is used, then the front porch timer will start on the transition edge of the PTT input. The front porch time should be entered by the user in milliseconds (mS).

Number of Digits:

This is the number of digits the D200-1 will block decode as a tone sequence. When 1 block is decoded all the digits will be displayed on the D200-1 display unit and output onto the PC.

Bandwidth:

The bandwidth controls the percentage of frequency deviation from the centre tone frequency. The bandwidth will vary, depending on the tolerance of the tone generator used to produce the block tone sequence.

Ignore Tone Length (Real Time Decode mode):

If this check box is set, the tone length timer will be ignored, and the tones will be decoded in real time (as they happen) and not predefined into a specified time limit. It is recommended to only use this option if tone digits are different.

Tone Set:

This is a pull-down list box. The default setting is 'Unselected'. All tones listed in this list box will are installed modules, controlled by the 'module.nli' file.

Error Time-out:

The time entered (n) will be multiplied in blocks of 50mS, i.e. if n=5, then the Error time-out will be 5x50=250mS. The error time-out is the time that the D200-1 unit waits if there is an incomplete tone sequence decode, e.g. if number of digits is set to 5 and the D200-1 unit decodes 4 digits, then the unit will wait e.g. 250mS for the final digit to be decoded. If the tone is not 'seen' within the time-out period, then an error is displayed.

Use Digital Squelch: This check box enables the digital squelch

Digital Squelch Level:

Digital squelch is used when there are no control input signals. It is recommended that the hardwired squelch or PTT is used, but in conditions where this is not possible, then the digital squelch can be implemented. The digital squelch works by trying to decode input frequencies within the toneset selected for a typical minimum of 40mS and with amplitude greater than that set by the user. The user selects a value between 0 and 254 which controls the trip threshold of a valid input amplitude signal for decoding. This value is dependant on the Attenuation level. The digital threshold level should be above background level (with no signal present). Contact JANA International for more information.

Use Squelch Control:

This check box enabled hardwired squelch signal input. Ensure that the correct 'Rising Edge' or 'Falling Edge' option box is set to match the active edge input signal.

PTT Active Rx Level

This sets the active PTT level input (if used). Note that this is the active Rx Level and not edge, therefore if the PTT input is not used, then this can be hardwired high or low.

4.5 USER MENU

Set Default Paths:

Default paths (accessed by Config menu, and then clicking on 'Configure Settings'), sets the default path for the following files:

Default Module Path:

This sets the path to the 'module.nli' file, normally found in the installed D200-1 directory.

Default Profile Path:

This sets the default path when the user requires loading or saving a user profile.

Open / Close Profile:

Through these two file options the user can load or save D200-1 programming profiles. This may be particularly useful when programming the D200-1 for different radio tone sets or saving the current profile for retrieving later. The profile will save all the user options and settings into a single *.ani file programmed into the D200-1.

------

On the next pages are a complete wiring schematic and circuit diagrams.

5.1 PRODUCT WIRING SCHEMATIC

5.2 ANALOGUE DECODER PCB

5.3 DISPLAY PCB

5.4 GE-STAR DECODER PCB

Page 3 of 10