Tiso Tiso-19, Hardware Manual, Page: 8 / 9

2.1.5 Spare IO's
Pins 11 and 13 (also 15 if unused for external alarm input) on the tracker can be used for
monitoring the status of external devices such as switches or sensors. These devices have to
operate at 12V.
For example:
Battery monitoring, or door switch.
2.1.6 External Alarm In
On most vehicle alarms there is an external alarm output. Connect this to Pin 15. If the
vehicle alarm is triggered the owner is notified via text message and the information is also
sent to the control server to indicate an alarm event.