CN1: Ethernet connector
A standard RJ45 connector connects Ethernet. Cat.5 UTP cabling is best suited.
Pin Assignment
1 TX+
2 TX-
3 RX+
4 n.c.
5 n.c.
6 RX-
7 n.c.
8 n.c.
CN4
RS485
CN3 CN1
LAN
CN2
not
used
- +
27Ah 12V
Vin = Voltage In
Vout = Voltage Out
Batt = Battery
Fig. 18 NK822x power connections
Caution! There is a risk of explosion if the battery is replaced with an incorrect
battery type.
Use 27Ah 12V batteries.
Recommended type: FIAMM-GS model FG22703 ( www.fiamm-gs.com)
Dispose of the used battery at a recycling point in accordance with local environ-
mental standards and regulations.
CN3: Power supply and LON connector
CN3 - Power and LON connections
Pin Assignment
1 + PWR (+10...33V
DC
)
2 Earth
3 - PWR
4 LON-A
5 LON-B
A LON TP/FT-10 network segment can be set up for bus- or free topology. LON
repeaters can connect the segments. Up to four LON repeaters (such as NK8020)
might be used to extend the size of a LON network.
See 4.1.6, “LON interface” on page 22 for additional information about con-
necting a LON interface.
1
5
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