User Manual

Axon Signal Unit
Installation Manual
Page 2 of 9
The ASU only causes an Axon Flex system to transition from BUFFERING to EVENT mode.
You end the recording with a 3-second press of the EVENT button on the Axon Flex controller.
Double-pressing the EVENT button on the Axon Flex controller after the EVENT mode is
activated by the Axon Signal Unit will not interfere with recording.
Installation Instructions
 Axon Signal Units are usually installed near the siren box or light bar controller (trunk or
console).
 Clean the surface before installation.
 The ASU can be mounted using robust double-sided tape, Velcro, or bolting tools (bolts
not included).
 Wires should be connected to the GPIO terminal block interface.
 Wires should be no smaller than 18 gauge.
 1A fuse is recommended, either in line or on a fuse block.
 No programming of the box is required, just installation.
Inputs and respective locations are outlined in the picture below.