Power and connections
The SPEEDBOX20 requires a stable 12V DC power supply. This should be connected to the cable loom assembly that is supplied with the SPEEDBOX20 via a fused connection to the vehicle. A 500mA fast blow type fuse is recommended. Once connected to the power supply, the SPEEDBOX20 will automatically power up and commence its initialisation routine. The current consumption of the SPEEDBOX20 is approximately 200mA. It should be noted that the SPEEDBOX20 remains active whenever it is connected to a 12V supply. This means that it must be disconnected when not in use, otherwise it will drain the vehicle battery.
Unreliable power supplies are a common source of problems. In the event of any problems, please check the reliability of the power source or try an alternative supply in the first instance. The SPEEDBOX20 may also be powered from an external battery pack. If you require a battery pack, Race Technology keeps a wide selection in stock - please contact us with your requirements. Because of the current supply requirements, only rechargeable batteries should be used. Disposable cells are not suitable.
Connections - General
There are three connections on the unit - one main connector block, labelled "Conn1", and two GPS antenna connections. These are labelled "GPS1 Antenna" and "GPS2 Antenna" respectively. The main connector block (Conn1) should be connected to the large connector on the supplied cable loom. The other connectors on the loom are all individually labelled. The positive wire on the power lead has a grey or white stripe.
A 3.3V active GPS antenna must be connected to "GPS1 Antenna". GPS2 is only used with the RTK option.
"WARNING": To avoid any possible damage to the car paintwork, please take care when mounting magnetic GPS antennas. In particular make sure that there are no dust or grit under the antenna. In some cases it maybe required to add additional protection to the paintwork prior to mounting the antenna to avoid damage.