We recommend to install the Unit in an occult place to prevent from unit or vehicle robberies. When installing take care to settle the unit in a covered place because the unit is no water-resistant.
The unit is programmed to report its current location in fixed periods of time, this periods are defined by the customer needs and by Geobis International service plans. Additionally to position reports, the unit will transmit other kind of events like panic button or doors open just in the moment the event occurs.
If you have one or some AVL unit models in service, you have to send us the units technical specifications to establish the appropriate trace management, this analysis has an additional cost, please contact our sales executives for more information.
Our units use state of the art technology, they will work properly while there are GPS satellite and Cellular GPRS signals.
The AVL units need a power source to work properly. This source must provide between 5 to 30 VDC. For sure you can use the vehicle's battery, it provides 12 VDC.
In both cases the sensitive face of the antennas is the black face, for the round antenna there is no problem where you settle it, this is the cellular antenna an in normal conditions you will have a good cellular service. The square antenna is the GPS antenna and it has to be settle in a place without obstructions and always facing the sky. Because of this it is not recommended to settle it in the vehicle's bumpers.
The Evolution AVL unit has two general purpose Input Output ports (GPIO), the MTG unit has 5 GPIO. This ports can be configured by software to manage different events on the asset you are tracking.
Each port can be configured as input or as output, according to this configuration you can connect circuits to get information from the vehicle's environment like door open, alarms, etc; or you can send information to the vehicle's environment like unlock the doors, stop the engine, etc.
The AVL unit is programmed through a Hyper Terminal session, you have to connect the unit to a PC using the programming cable provided by Geobis International, establish the Hyper Terminal session and program the unit using the AT commands included in the configuration manual.
Anyone with the appropriate skills can program the unit or change the programming previously established. It is important to take care when changing parameters like transmission frequency, this parameter defines the cost Geobis International is charging to the customer.
If you are the platform owner, you can change any parameter at any time.
Because these units start working in AT command mode, then the connect command is not mandatory.
Each AVL unit includes two antennas, one for GPS signals and the other for GSM/GPRS signals, additionally the box includes a programming cable, a panic button and a power cable. This configuration can vary according with the customer requirements, but change in weight is minimum. The total weight for the package is 650 Gr.
No, to configure the AVL unit it must be connected to a power source (5 to 30VDC) and to a PC using the programming cable provided. You can identify the programming cable because it includes a 9 pin (RS232) connector and a 12 pin connector. In some cases this cable can include a panic button and some audio devices.
If the vehicle's computer has a 9 pin RS232 serial connector, you can connect the AVL unit to send and receive information to/from de vehicles´s computer. Some data like the total amount of miles traveled can be obtained directly from the unit, it has an odometer.
Initially you need to program the AVL unit to send to your server o servers the IP address assigned by the GPRS platform every time the unit is registered by the platform. With this information you can maintain an actualized table in your server and send over the air messages (OTA) to the current IP address of your AVL unit. These messages can be AT commands to program or change AVL unit programming.
The trace includes information like: Event number, unit name, Trace format, Latitude, longitude, speed, and date (DMY); these are basic data, the trace can include additional data about programmed events.
The GPS/AVL unit uses three different communications networks to provide the service you are looking for, the GPS network, the GPRS network and Internet. The unit installed in the vehicle uses de Signal provided by the GPS satellites to establish its position, direction and speed among others; the unit sends this information through the GPRS network, the information finally will arrive to the AVL/GPS server through Internet and the server will show all the data over a Digital map and on alphanumeric reports.
The unit has three leds, each one can be programmed, but they are pre-programmed from factory to reflect different unit states very useful for the user or programmer. Red led (PWR): On, means the unit has been connected to an appropriate power source (5 to 30 VDC).
Red led (USR2) : On, means the unit has enough signals from GPS satellites and can work properly. Off means the unit is looking for GPS satellites signals and there are no enough even. If after a long period of time the led stills off check the GPS antenna connection and the GPS antenna location.
Green led (USR1) : On, the unit has been registered by the Cellular network. Blinking or off, the unit can't be registered by the cellular network, in this case check the cellular antenna connection, verify the SIM card is installed into the unit, confirm the SIM card was activated by the cellular carrier, finally verify the APN programmed in the unit.
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