) into clean wiring and correct device configuration--
independently in the field
--so the back office sees exactly what it should.
Harnessing that survives vibration, wash-downs, winter salt; proper strain relief, abrasion protection, labeling, and documentation.
J1939 reads match OEM SPNs/PIDs
; serial links handshake reliably (CTS/RTS, pinout, termination).
Core Responsibilities
Vehicle Upfitting & Wiring
Install AVL units, I/O hubs, spreader interfaces, cameras/DVRs on
12/24V
systems across trucks, plows, loaders, sweepers, transit, and utility fleets.
Connect to
J1939 (CAN)
safely (backbone vs. stub, ?1 m stubs, 120 ? termination, shielded twisted pair) and verify with a CAN interface (Kvaser/PEAK/ValueCAN).
Wire and troubleshoot
RS-232/422/485
: straight-through vs. null-modem, 485 termination and bias, shielding/grounding practices.
Commissioning, Verification & Troubleshooting
Perform power tests with
DMM and clamp meter
(quiescent draw, ignition sense, voltage drop).
Validate data in the portal/app: GPS lock, cellular signal, I/O state changes, engine data health.
Produce clear