In the segment of domestic car alarm systems, there are plenty of budget offers with partial implementation of premium level functions. Manufacturers are approaching the highest class of telematics modules with less enthusiasm, since such devices are sometimes several times more expensive and not so in demand among motorists. Nevertheless, and this category from time to time is filled with successful developments. A functionally balanced example of such a system is demonstrated by the “Pandora DXL 3910” alarm system, provided by Slave mode, a GSM receiver and a digital CAN bus.
System Options
The basic set of the alarm package includes: a central control unit, a temperature sensor, a microphone, an automatic start relay module, immobilizer tags, a set of mounting accessories and cables. As an add-on, the user can use an antenna to transmit a signal via remote communication channels, a siren and additional sensors - for example, a shock detector, which will record the fact of an attempt to enter the cabin. Also, the Pandora 3910 alarm provides for the possibility of expanding the option due to functional components connected via special wiring modules and the same CAN bus. Through these channels, the radio of the engine compartment, the RR-100 radio module, GPS / GLONASS receivers with advanced navigation capabilities and the immobilizer bypasser can be connected to the central unit and relay. Immediately it is worth emphasizing that the autostart of the engine when the immobilizer is working without a special unlocking tool will not work correctly.
Placement of Alarm Components
The main installation work is carried out with functional components in the cabin. First of all, the central control unit is installed - the controller, in which the signals coming from other elements of the system will be processed. It is mounted under the dashboard or in its own niche using screw clamps, anchors or brackets. The choice of mounting method will depend on the design of the machine in this area.
Further, the installation of the Pandora 3910 alarm system provides for the placement of an antenna module that will send and receive signals from the owner’s key fob or mobile device via the GSM network. It is advisable to install the receiver at the windshield as high as possible, but away from metal surfaces and electrical appliances. Sensors are located in areas of their destination. The shock sensor is on the inside of the glass, and the temperature detector can be located in any convenient place, but so that it is not affected by local climatic equipment.
Connection
The main electrical work will be connected with the connection of components between themselves and the introduction of new auxiliary equipment. At a basic level, you need to connect the battery pack or cigarette lighter with a 12V power line to the controller unit. On independent circuits, power supply should be applied to the siren, relay module, sensors and antenna. Of particular note is the connection of the CAN bus of the Pandora 3910 alarm. The operating manual notes that this module is introduced into the infrastructure through the diagnostic connector type OBD-II. Moreover, the connector configurations may be different depending on the limit switches - that is, the equipment that will be controlled by this module. After a physical connection, it is necessary to conduct a survey of connected devices through the interface of the central unit or a computer connected via mini-USB. Among them may be triggers, door lock locks, hood, trunk, airbag control modules, as well as other safety and security devices.
Alarm Setup Instructions
The adjustment can also be done using a computer or the hardware control tools of the modules and the central controller. It will consist in setting the operating modes of the security complex. In particular, it will be necessary to set the parameters of alerts in alarm cases, system reactions when arming and disarming the machine, etc. If the Pandora 3910 alarm is used with shock sensors, then the optimal sensitivity level should be set for them. To reduce the frequency of false alarms of the complex, it is desirable to set the average degree of sensitivity of the sensor, sufficient to fix the intentional force effects.
Management of basic security modes
In the 5-meter range of the transmitter, you can use the radio channel to install and disarm the machine. Using encrypted RFID tags, the system will fulfill the request in the process of dialogue exchange of information. This is the main method of arming, the results of which will be notified on a mobile phone connected to the alarm. But it is also allowed to use a remote method of communication through the same phone. In this case, the Pandora 3910 alarm instruction indicates the need to use the Hands Free mode with the possibility of automatic arming or disarming. A modern Slave mode is also provided, which allows you to control the status of security systems via the CAN bus channel. The presence of the RFID tag in the coverage area of the alarm receiver in this case is optional.
Positive Alarm Feedback
The system is famous for its wide possibilities for connecting various functional components, flexibility in the organization of electrical connections and general ergonomics. Experts recommend this complex as an optimized base, on the basis of which each motorist can design a security system for their individual requirements. For undemanding motorists, the Pandora 3910 alarm has become attractive in that it gives the possibility of the primary device of blocking networks without overloading with electronic control modules. That is, a user who does not plan to organize high-tech links with program control can limit himself to only the main channels for regulating mechanical protection devices. In part, a CAN bus is also provided for this, which also has a high degree of reliability.
Negative reviews
Cons are also noted by the owners of this complex, but they are not as significant as the benefits. To begin with, telematics have certain limitations. For example, there are restrictions on the determination of coordinates in work with cellular communication stations. Many point to the shortcomings of the proprietary alarm application "Pandora 3910". The reviews indicate that the service limits the possibilities of using a number of functions, often does not work correctly with tags, and generally requires a serious revision of the platform.
Finally
The complex turned out to be solid in quality of construction, functional and convenient to use. Of course, there are fundamental compromises that developers had to make in order to keep the price tag, but the Pandora 3910 alarm looks decent based on the main working qualities. By the way, the price tag of the system averages 20-25 thousand rubles. For comparison, full-fledged telematic complexes of a premium level cost no less than 40 thousand. And it must be borne in mind that the Russian specialists were able to realize the main capabilities of such modules in their device.