ARK-1250L User Manual 12
2.4 External I/O
2.4.1 Power On/Off Button
ARK-1250L features a power on/off button with an LED indicator on top that shows
On status (Green LED).
Figure 2.2 Power On/Off Button
2.4.2 Power Input Connector
The power input connector supports 12 ~ 24V. The 3 pins are defined as +, -, and
GND.
Figure 2.3 Power Input Connector
2.4.3 Ethernet Connector (LAN)
ARK-1250L is equipped with two Intel® i225-LM Ethernet controllers connected to
LAN1 and LAN3, as well as Intel® i219 Ethernet controllers connected to LAN2. The
Ethernet ports provide standard RJ45 jack connectors with LED indicators on the
sides to show Active/Link status (Green LED) and speed status (Yellow LED).
Figure 2.4 Ethernet Connector (LAN)
* LAN 1 and 3 are up to 2.5G, while LAN is up to 1G.
Table 2.6: Ethernet Connector (LAN) PIN Definition
Pin 10/100/1000/2500 Mbps Signal Name
1 BI_DA+(GHz)
2 BI_DA+(GHz)
3 BI_DB+(GHz)
4 BI_DC+(GHz)
5 BI_DC-(GHz)
6 BI_DB-(GHz)
7 BI_DD+(GHz)
8 BI_DD-(GHz)
H3 GND
H4 GND
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