MX575A/B DGPS Compass
31
3.3 Alternative Data Interface
The MX575 can also be used as a source of true heading & ROT device only
when connected to PORT 2 (or any other available ports other than PORT 3) as
shown in Figure 32 and 33. The CDU will not change the default NMEA data
output configuration of the MX575 in this setup.
R
L
1
R
L
2
R
S
2
3
2
e
n
a
b
le
J
1
UPPER LOWER
Rs232
PORT 2
Tx
Rx
GND
MX420/2 JUNCTION BOX
CABLE A
MX ANTENNA
PORT
PORT1
DUAL CONTROL
EXT. ALARM
POWER FAIL
PWR INPUT
IN +
GND
U
1
U2
U7
U4
U9
U5
U6
2
A
M
P
B IN
A IN
B OUT
A OUT
BRN
ORG
GRN
BLK
RED
GREY
PURPLE
YEL
WHT
BLU
B IN
A IN
B OUT
A OUT
NO
NC
C
NO
NC
C
IN -
12-32 VDC
POWER INPUT
1
18
MX420/2
MX575A
BLK (GND)
RED (12 VDC)
YEL/BLK (PORT B RS-232 -)
YEL (PORTB RS-232 +)
BRN (PORT B RX RS-232)
GRY (SIGNAL GND)
VNDR# 051-0157-002
Figure 33
–
Alternative connection to MX420/2 CDU (PORT 2) as a GPS
Satellite Compass only
