Leica MX421 Series, Руководство по установке

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3
MX421 Installation Manual
Antenna Connector
The multi-pin connector at the bottom of the antenna housing provides the neces-
sary interfacing between the MX421 smart antenna and the latest Leica CDU or
other NMEA compatible devices. Older production MX421 antennas use 8-pin con-
nectors while new build units (MX421-10) use 10-pin connectors. The interface
connections from pins 1 through 6 are similar for all MX421 models. There are
slight differences in Pins 7 & 10 for each model, which are indicated in Table 1. The
two additional pins (9 & 10) on the newer production MX421 are used to output the
1 PPS signal.
Table 1 - MX421 Smart Antenna Configuration
8-Pin Conn. (old) 10-Pin Conn. (new)
Pin
# Wire
Color
MX421
GPS
MX421B
DGPS
MX421-10
GPS
MX421B-10
DGPS
1
BLK/
SHIELD
Negative Ground
2 RED
+10.5 ~ 32 VDC
3 BLU
Leica Proprietary Message (LPM) In (-)
4 BRN
Leica Proprietary Message (LPM) In (+)
5 ORG GPS Out (-)
6 GRN GPS Out (+)
7 YEL
N/C
Beacon Status
Out (-)
RTCM In (-)
Beacon Status
Out (-)
8 WHT
N/C
Beacon Status
Out (+)
RTCM In (+)
Beacon Status
Out (+)
9 PRPL N/A N/A 1 PPS (+)
10
PRPL/
GRY
N/A N/A 1 PPS (-)