Hardware & power

Device command reference

The commands Vectra sends your tracker, and what each one changes.

5 min read

You do not normally need any of this — the dashboard sends what it needs to. It is documented because operators ask what is happening to their hardware, and because the answer should not be "trust us".

Sent automatically when you add a device

CommandWhat it does
IP2,<host>,<port>,1#Points the tracker at our gateway over TCP
PROTOCOL,1;2,1#Selects the reporting protocol
LOCKACCOFF,0#Reports ignition-off immediately rather than after a delay
UTC,0#Sets device time to UTC, so timestamps cannot drift by a timezone
HC,15,60,60#Upload every 15s moving, 60s stationary
COLLISION,10#Sets impact detection sensitivity
Sent about a minute apart over the first few minutes after a device is added.

Fleet configuration

CommandWhat it does
XM,0#Disables auto-sleep, so cut-off and theft reporting are instant
LEVEL,3#Lowers vibration sensitivity — applied to boats so wave slap does not wake the unit
TURNOVER,10#Enables the rollover alarm — applied to ATVs and side-by-sides
VACC,131#Detects ignition from voltage, for installs with no ignition wire
STATUS#Asks the device to report its current state
RESET#Reboots the tracker. Settings survive

Cut-off

CommandWhat it does
RELAY,1#Opens the relay — the asset cannot start
RELAY,0#Closes the relay — normal operation
One command to avoid

FACTORY# wipes every setting, including the server address and the timezone, and a unit that has been factory reset will not come back on its own. If a tracker needs resetting, use RESET# or ask us.

Nightly reboot

Trackers are rebooted once a night. It clears the class of firmware wedge that used to require a site visit, and it costs one missed report.

NextConnect your own JT808 tracker
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