Interfaces of the ACU
98-146706-A
Chapter 4: Interfaces
4-3
Interf
aces
4.1.4
Rx In and Tx Out connectors
The ACU has an Rx Out and a Tx In connector. Use these connectors to connect the ACU to
the modem.
4.1.5
NMEA 0183
1
connector
The ACU has an NMEA 0183 connector for the ship’s gyro.
1. Connect the pins according to the table above.
NMEA 0183
The NMEA 0183 connection supports EN 61162-1 (baud rate 4800, format 8N1) and EN
61162-2 (baud rate 38400, format 8N1). The ACU detects the baud rate automatically, you
cannot configure this interface.
Outline (on the ACU) Pin number
Pin function
1
Inner conductor:
reference clock, Rx/Tx
2
Outer conductor: GND (Shield)
Table 4-3: F connector, Rx and Tx, outline and pin assignment
1. (Hardware prepared for NMEA 2000, for future use). NMEA 2000 power: 9-16 VDC. NMEA 2000 LEN
(Load Equivalency Number): 2 (100mA)
Outline (on the ACU)
Pin
Pin function
Wire
color
1
Not connected
–
2
NET-H (NMEA 2000)
White
3
NET-L (NMEA 2000)
Blue
4
NET-S (NMEA 2000)
Red
5
NET-C (NMEA 2000)
Black
6
Not connected
–
7
Not connected / RS-232 RX
NMEA 0183
–
8
RS-232 GND
RS-422 shield, connect only one
end.
9
RS-422 Line B (+) NMEA 0183
10 RS-422 Line A (-) NMEA 0183
11 Not connected
–
Table 4-4: NMEA 0183/2000 connector, outline and pin assignment
1 11
SAILOR900Ka-IM-98-146706.book Page 3 Thursday, July 16, 2015 11:07 AM
