Power Supply; Input - Advanced Navigation Certus OEM Reference Manual

Certus Reference Manual • Installing Certus OEM
forward towards the front of the vehicle and the Z+ axis points straight down towards the ground as shown
below.
If aligning Certus with the vehicle axes is not possible within vehicle size or shape constraints, it may be
mounted in a different alignment and the alignment offset can be configured
Interface or 8.2 Using Certus
button in the Alignment page to set the current orientation as the level alignment.
Note: This will only correct for roll and pitch offsets. Any heading offset will need to be entered manually
and saved after using this function.
Figure 12: Mounting Axes

6.4 Power Supply

There are two options for powering Certus OEM, either a wide input 9-30 VDC that must pass through an
onboard regulator or a clean and regulated 5 VDC supply. See
Note: Only one power supply should be connected to the unit at any one time. Connecting power
supplies to both inputs may result in damage to the unit.
On start- up of the Certus OEM the device will initially draw an increased impulse current (2 A for 2
microseconds) whilst it charges on board capacitors. It is important that the user's circuit is tolerant to these
small impulses on start-up to avoid unsuccessful power up. It is recommended that a supply is selected that can
provide a maximum current of 2 A. Switch-mode supplies are suitable as Certus OEM has on-board filters to
remove any supply noise and ripple.
6.4.1 9-30 V Input
A wide range 9-30 V input is available which connects to Certus OEM's onboard regulator. The power supply
should be able to supply the maximum current at the chosen voltage, calculated from the maximum power
v2.4
Manager. For easy roll and pitch alignment, use the Set Zero Orientation
Page 30
8.1 Using the Web User
5.7 Connector Pin-out for details
2024-12-17