A325 GNSS Smart Antenna User Guide
11
PN 875-0318-000 Rev D2
Chapter 2: Installing the A325
Powering the A325
Power Considerations
The A325 accepts an input voltage of 7-36 VDC. For best performance use a clean and continuous
power supply. See Table B-5 on page 23 for complete power specifications.
Connecting to a Power Source
The A325 uses a single cable for power and data input/output.
Note:
A power/data cable is not supplied with the A325 but is available as an accessory item. See
Table 1-1 on page 4 for a list of accessory items. The following information refers to using the
accessory item cables available from Hemisphere GNSS.
The antenna end of the cable is terminated with an environmentally sealed 12-pin connection and
the opposite end is either DB9 or unterminated (requires field stripping and tinning).
To power the A325:
•
Connect the A325 to a 12 VDC source. Selecting the right power connector will depend
on your specific installation requirements.
Do not apply a voltage higher than 36 VDC. This will damage the receiver and void
the warranty.
The A325 features reverse polarity protection to prevent excessive damage if the power leads are
accidentally reversed. With the application of power, the A325 automatically proceeds through an
internal startup sequence; however, it is ready to communicate immediately.
