Power Supply
The NM-11ETH can be powered within the range of 10-32 Volt DC. The nominal voltage of 24 Volt DC is advised
for powering the device in normal operation.
Power input port features protection for incorrect polarity connection of the supplying voltage and a PTC
resettable Fuse in case of overload.
Composite Layout
LED Indicators and Jumper Configuration
LED indicator
Jumper
Setting
Functionality Description
LED RX
J1-1: open
J1-2: closed
OFF: No data received/connected in the input port
Blinking: Data received from input port
J1-1: closed
J1-2: open
OFF: No data received/connected in the expansion connector K5
Blinking: Data received/connected in the expansion connector K5
LED TX
X
OFF: No data transmitted from RS-422/RS-232 output port
Blinking: Data transmitted from RS-422/RS-232 output port
LED 3V3
X
ON: 3,3 VDC power supply section OK
OFF: Malfunction in the 3.3 VDC power supply section
Notes:
1. Jumper array J1 is used to select between the optically isolated input Port and the expansion connector
K5. The K5 connector is used to interconnect the NM-11ETH to other nuova marea products (power/data
connection)
J1-2 closed: Selects the optically isolated port (connector RX) for input
J1-1 closed: Selects the K5 expansion connector data lines for input
J1-1 & J1-2 closed: Not applicable, data corruption may occur
2. Jumper MD is used for selecting the service mode (initial firmware programming for the Serial over
Ethernet interface). It should always be open (default).
nuova marea ltd
marine electronics & design
Address: 26 Mirtidiotissis str, Kastella, 18533 Piraeus, Greece
Tel.: +30.210.4134628, +30.210.4134698, Fax: +30.210.4134814
(c) nuova marea ltd
