Installation Manual
–
SDU 404
Page 5
DCU Communication
Depending on the DCU model connect
the wires in the shielded communication
cable to the terminals as shown in the
table below:
SDU 404 DCU
410(E)/
408
DCU
210E/
208E
DCU
210/
208
28
( )
60
( )
22
( )
29 (L)
61 (L)
5 (L)
23 (L)
30 (H)
62 (H) 6 (H)
24 (H)
Note! Do not connect the
cable shield ( ) at both ends.
When properly connected, the DCU will
find the SDU automatically. To start
using the SDU, enable it via the DCU
web interface.
The SDU Link shall be terminated with
120 ohm resistors in both ends. The
DCU is terminated internally.
Connections
The two-wire
SDU Link
has fixed
communication parameters.
The Baud rate is 19200 baud.
8 data bits
1 stop bit
Even parity
Configuration Mismatch
Warning
When the SDU is connected to the DCU,
the DCU will analyze the configuration
in the SDU and compare it to the stored
configuration in the DCU. If these do
not match, the DCU will give a
“Configuration Mismatch” warning.
The warning can be acknowledged, but
DCU login rights are required to reset
this warning. With login rights, the
configuration can be copied from the
DCU to the SDU, or vice versa.
Please see the relevant Marine Pro
manual for further details.
Buttons
Acknowledge
This button is used to acknowledge
alarms and faults.
See User’s Manual
for more details.
Overspeed Test
Press and hold the “Overspeed Test”
button for more than two seconds to
enter the overspeed test mode. See
User’s Manual for more details.
