Specifications

16 | Installation
Data Interface to MX420/2 or MK12
CDU
Use the diagram below to interface the MX521A to an
MX420/2 or MK12 CDU.
MX521A Interface to MX420/2 or MK12 CDUs
12
(2) Red
Red (+12 VDC)
(16) Red/Wht
(1) Blk/Shield
Blk
(GND)
Grn (GPS Out +)
Org (GPS Out -)
Brn (M
P
M In +)
Blu (M
P
M 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
+
-
NME
A
1 I/O
NME
A
2 I/O
MX420/2 or
Mk12 CDU
Cable A
Terminal
strip
(User supplied)