NavCom SF-3040 Rev.F - Manual (Page 71)

SF-3040 Product User Guide
– Rev. F
3-69
Voltages in excess of 30VDC will
damage the unit. The power
supply must be well-conditioned
with surge protection. Vehicular
electrical systems that create
voltage spikes in excess of 30VDC
will benefit from providing power
protection during vehicle engine
power-up. This can be
accomplished through a relay
power-on sequence and/or power
conditioning (such as a DC to DC
converter). Do not connect
equipment directly to the vehicle
’s
battery without in-line protection
(such as a DC to DC converter).
Figure 36: SF-3040 Bottom View
Optional
Antenna
Mount
COM2
USB
– COM1
Power
Pole
Mount