Installation Overview¶
A high-level look at what goes into a typical vehicle install. This covers the physical work — mounting, routing, and wiring. CWI handles the device configuration (network settings, server connection, etc.) separately.
The components¶
- Video recorder (DVR) — the central locked box, usually mounted in a cabinet, overhead, or under a seat.
- Cameras — interior and exterior, wired back to the recorder.
- Router — provides the cellular connection; pairs with a roof antenna.
- GPS antenna — for location/tracking.
- LED status panel — mounted in the driver's view.
- Panic button (if equipped).
Mounting the recorder & cameras¶
- Mount the recorder where its door can still be opened and locked (the recorder won't sense the hard drive if its hatch isn't latched).
- Position cameras for the required coverage (driver, passengers, doorway, road). Confirm the final location and angle before you button things up.
- Caulk all exterior penetrations to keep water out.
- Secure every camera with enough fasteners that the bracket can't move; protect cables from being pinched by trim or panels.
Antennas¶
- Mount the roof antenna for the router with a clear view of the sky.
- The GPS antenna must sit flat and face up toward the sky — an upside-down or sideways GPS antenna will not track. (When in doubt, test for a fix before finishing.)
Power & wiring¶
- Provide the recorder with constant power, ignition (switched) power, and ground.
- Use appropriately sized wire for the load — undersized wire is a common cause of intermittent problems. Don't run multiple devices off a wire meant for one.
- Make sure the system shuts down with the vehicle (after its normal delay) so it doesn't drain the battery overnight.
- Route the panic button wire and terminate it properly — don't leave it loose in the bundle.
- Leave a little slack and service loop so wiring isn't pulled tight or at risk of falling out during future service.
- Run an ethernet cable between the recorder and the router. (Don't forget it — it's easy to overlook.)
Before you leave¶
- Confirm the system powers up, records, and comes online.
- Note the bus/vehicle number and any serials for the records.
Get the GPS antenna orientation and the power wiring right the first time — they're the two most common causes of callbacks.
See also Equipment & supplies.