5
LA000578A © 2006 Navman New Zealand. All rights reserved.
Proprietary information and specifications subject to change without notice.
2. GPS antenna with pre-amp, magnetic base and SMA connector
A magnetic-mount active antenna is supplied with the receiver development kit, along with an
RF cable (RG-316) already terminated with the proper connector for the development unit. The
nominal measured attenuation of the cable with connectors is approximately 5 dB. The supplied
active antenna should be biased at +3 VDC, but a different active antenna with a bias of either
+3, +5 or +12 VDC may be used. Refer to section 3.2 to ensure that the configuration switches
on the front panel of the development unit are chosen to select the appropriate bias voltage.
Caution:
ensure antenna power switches are properly set before connecting the antenna. An
antenna designed for +3 VDC operation will be damaged if connected to a +12 VDC
source.
3. Serial interface cable
A serial cable is provided to interface between the development unit and the customer’s PC, or
between the development unit and a DGPS receiver. This cable is terminated at both ends with
female connectors to match the male connectors on the development unit and the PC. If the PC
used only supports a USB port, an RS232/USB converter could be utilised.
4. Power adapter for 240/120 VAC operation
DC power for the development unit is provided by either an AC/DC converter or automobile
adapter. The AC/DC converter operates from a nominal 120/240 VAC input and provides a
12 VDC at 500 mA out.
5. Power adapter for 12 VDC vehicle operation
For mobile operation, an automotive adapter intended for use in 12 VDC vehicles is provided.
Figure 3-1 Front and back panels of the Jupiter 30 development unit
(showing functional switches and connector locations)
1 2 3 4 5 6 7 8
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power
configuration
function
reset
Serial Port 1
Antenna
DR
Clock
Out
Serial Port 2
-
+
DC Power
9-16Volts
1PPS
comm 1
NMEA &
comm 2
(RTCM)
dead
reckoning
DC input
‘U’ slot for
antenna
SMA
antenna
