22
MX421 Installation Manual
Data Interface to MX420/2 or MK12 CDU
Use the diagram in Figure 12 to interface the MX421-10 to a Leica MX420/2 or the
MK12 CDU.
(2) Red
Terminal
Strip
(User Supplied)
Red (+12 VDC)
(16) Red/Wht
(1) Shield
Blk/Shield (GND)
Grn (GPS Out +)
Org (GPS Out -)
Brn (LPM In +)
Blu (LPM In -)
(8) Org
(9) Org/Wht
(10) Yel
(11) Yel/Blk
In (A)
In (A)
In (B)
In (B)
Out (A)
Out (A)
Out (B)
Out (B)
(4) Brn
(5) Brn/Wht
NMEA2 Tx (RS-232)
Ext. Alarm
(6) Prpl
(7) Prpl/Wht
(12) Grn
(13) Grn/Wht
(14) Blu
(15) Blu/wht
(17) Gry
(18) Blk/Wht
(3) Blk
12~32 VDC
Supply
+
-
NMEA1 I/O
NMEA2 I/O
MX420/2 or
Mk12 CDU
MX421-10
MX421B-10
C
a
b
le
A
Figure 12 - MX421-10 Interface to a MX420/2 and MK12 CDUs
