USER MANUAL BTX Ankle Tether USER MANUAL BTX Ankle Tether TABLE OF CONTENTS 1.0 Product Overview ............................................................................................................... 3 1.1 Primary Functionality of the BTX Ankle Tether............................................................... 3 2.0 Operational Description..................................................................................................... 3 2.1 Off State............................................................................................................................. 4 2.2 On State ............................................................................................................................. 4 2.3 Check Battery Voltage....................................................................................................... 5 2.4 Check Conductive Link ..................................................................................................... 5 2.5 Check Optical Link............................................................................................................ 5 3.0 Installation Instructions ..................................................................................................... 6 3.1 BTX Ankle Tether ............................................................................................................. 6 3.2 Tracking/Reporting Unit - TRU ........................................................................................ 6 2 USER MANUAL BTX Ankle Tether 1.0 PRODUCT OVERVIEW Lares Technologies has created a system for monitoring the location of criminal offenders and tracking their position. This system is comprised of an ankle bracelet that is worn by the offender, together with a cell phone that is carried by the offender. The BTX Ankle Tether communicates to the Tracking/Reporting Unit (TRU) cell phone. The TRU cell phone receives location information from the GPS satellite network, and it communicates status and position via the cellular network. A system block diagram is show below:
The TetherTrack System TRU BTX 1.1 PRIMARY FUNCTIONALITY OF THE BTX ANKLE TETHER The BTX Ankle Tether contains an ankle strap attached to an electronic module. The electronic module monitors that the ankle strap is always connected, monitoring via both an optical link and a conductive link on the ankle strap. The BTX Ankle Tether is powered by a lithium battery. The BTX Ankle Tether includes one pushbutton (START button) on the unit, used primarily for activation of the device. The BTX Ankle Tether periodically communicates with the TRU cell phone to provide the status of the ankle strap connection. In addition, the BTX Ankle Tether communicates other status information to the TRU (e.g. such as battery status, and pushbutton activation.) 2.0 OPERATIONAL DESCRIPTION The BTX Ankle Tether has two primary functions: detecting that the ankle strap has not been removed and reporting the status of the strap to the TRU cell phone. It has two main states: Off and On. The Off state is used during shipment from the factory and when not in active use. The On state is used when active monitoring is desired. 3 USER MANUAL BTX Ankle Tether 2.1 OFF STATE The Off state is designed to be the lowest power state for the BTX Ankle Tether. In this state, the device will NOT report any status conditions to the TRU cell phone. The Off state is entered when a new battery is inserted and the power is applied or when instructed to enter the state by the TRU cell phone while in the On state. When the state is entered, the device will (re-)initialize the hardware, setup a wakeup interrupt for the START button, and go into the Super Low Power mode. If the START button is pressed, the BTX will wake and wait for communication with the TRU cell phone. If the TRU cell phone pairs with the BTX Ankle Tether, the TRU cell phone will send the wakeup command and the device will enter the On state. If the TRU cell phone is not present or does not pair with the BTX Ankle Tether, the BTX will timeout and go into the BTXs lowest power state and wait for another START button press. 2.2 ON STATE The On state is the normal state for a working BTX Ankle Tether. In this state, the device will report any status conditions to the TRU cell phone over the communication link per its configured settings and can be configured by the TRU cell phone. The On state is entered when the device detects a START button press and the TRU cell phone application has paired with the device and sent the wakeup command. Once in the On state, the TRU can configure the BTX Ankle Tether by issuing configuration commands and will receive fault status at predetermined intervals. The On state is exited by: an Off command issued by the TRU cell phone or a low battery condition that prevents the operation of the device. In the On state, the device will monitor the following status conditions: strap conductive link, strap optical link, battery voltage, and the START button and will report the status of these conditions to the TRU cell phone. Upon entering the state, the default configuration is set and the BTX updates the status and sends the status to the TRU. The TRU will respond with a status acknowledge or with another command indicating it wants to configure the device. The command is interpreted and the appropriate action is completed, followed by the device sending a command acknowledgement. The BTX Ankle Tether will accept other configuration commands until there is no activity for the UART timeout period. Once configuration is complete, the BTX will set the monitor timeout and wait. When the monitor timeout has elapsed, the BTX will wake and get the device status. 4 USER MANUAL BTX Ankle Tether 2.3 CHECK BATTERY VOLTAGE The BTX Ankle Tether monitors the battery voltage to ensure it is changed at appropriate intervals. The battery voltage will have two thresholds: the operational threshold, and the low battery threshold. 2.4 CHECK CONDUCTIVE LINK The BTX Ankle Tether must ensure the strap remains connected. The strap contains a conductive element that can be used to detect whether the strap has been disconnected. 2.5 CHECK OPTICAL LINK The BTX Ankle Tether must ensure the strap remains connected. The strap contains an optical element that can be used to detect whether the strap has been disconnected. 5 USER MANUAL BTX Ankle Tether 3.0 INSTALLATION INSTRUCTIONS 3.1 BTX ANKLE TETHER 1. 2. 3. 4. If necessary, open battery cover and install battery making sure to note + and placement. Screw down battery cover to hand tight using Bit Driver with Phillips bit. Insert (arrow) end of strap into (arrow) side of BTX and secure using two pins. The slot in the top of the pin should be perpendicular to the strap and the raised side of the top on the strap side. Push down pins with thumb or finger until seated and a click is heard. Size to offenders ankle and cut strap on cut line using Strap Cutter. Never cut the (arrow) end of strap. Secure BTX on offenders ankle by inserting other end of strap into the BTX and using two pins as described in Step 2 above. 3.2 TRACKING/REPORTING UNIT - TRU 5. 6. 7. 8. 9. Power on TRU and start TetherTrack application. When SCANNING is displayed on screen push START Button on BTX on offender. TRU will display the BTX number(s) (BTX XXXXXX) that are in range. If more than one BTX is displayed, scroll to the BTX you want to pair with using the TRUs Navigation Key. Push OK. Make sure BTX number on display matches BTX number on offender. If prompted: TetherTrack Requests User Location Permissions, push GRANT. If prompted: Grant Request, select Always and push OK. 10. When pairing is complete, TetherTrack will suspend. Press OK to resume and display the Status Screen. The application is operational while suspended. 6 USER MANUAL BTX Ankle Tether 11. 12. 13. Check to make sure offender name is correct. has any Status If failed
(indicated in Red with icon) take appropriate action to clear. GPS may take a few minutes and may require moving the TRU near a window or taking it outside. each has the TRU and install After indicator place Lock. Status turned Green its holster in the Holster TRU can now be given to offender to start program. FCC Caution :To assure continued compliance, any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.
(Example - use only shielded interface cables when connecting to computer or peripheral devices). FCC Radiation Exposure Statement This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation. 7