Specifications

10 | Installation
MX521A Connector
The 10-pin male connector located at the underside
of the antenna unit provides the means to connect to
external power and the data interface. Please refer to the
chart below for the pin numbers, wire colors codes and
signal assignments.
Pin # Wire
Color
MX521A DGPS
Antenna
MX521A GPS
Antenna
1 BLK Negative Ground
2 RED +9 - 32 VDC
3 BLU MX Proprietary Message (MPM In (-)
4 BRN MX Proprietary Message (MPM In (+)
5 ORG GPS Out (-)
6 GRN GPS Out (+)
7 YEL Beacon Status Out (-) Not used
8 WHT Beacon Status Out (+) Not used
9 PRPL RTCM IN (+)
10 PRPL/
GRY
RTCM IN (-)
•
1
0
m
e
t
e
r
(
m
i
n
.
)
10 m (min.)
RADAR ANT.
3 m
MOUNT THE MX521/421
10 m (min.) FORWARD OF MAIN MAST
1 m
10 m
MAIN
MAST
INMARSAT
ANT.
VHF OR MF
ANT.
MX ANT.