Simrad MX521 - Data Interface to MX420;8 or MX420;AIS CDU

Installation | 19
Data Interface to MX420/8 or MX420/
AIS CDU
Use the diagram below to interface the MX521A to
an MX420/8 or MX420/AIS CDU. The external RTCM
connection is optional.
MX521 Interface to MX420/8 or MX420/AIS CDUs
13
(2) Red
(4) Brn
White*
Yellow*
Purple
Purple/Gray
(5) Brn/Wht
Terminal
Strip
(User Supplied)
Red (+12 VDC)
(16) Red/Wht
(1) Blk/Shield
Blk (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
MX420/8 CDU
Ext. RTCM (+)
Ext. RTCM (-)
(Optional)
Note: * Not available with MX521G models