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2.4
External I/O
2.4.1
Power On/Off Button
ARK-1221L features a Power on/off button with an LED indicator on top that shows
On status (Green LED).
2.4.2
Power Input Connector
The power input connector supports 12-28 V. The 3 pins are defined as +, -, and
GND.
2.4.3
Ethernet Connector (LAN)
ARK-1221L is equipped with two Intel® i225-LM Ethernet controllers connected to
LAN1 and LAN2. The Ethernet ports provide standard RJ-45 jack connectors with
LED indicators on the sides to show Active/Link status (Green LED) and speed status
(Yellow LED).
Table 2.13: Ethernet Connector (LAN) PIN Definition
Pin
1
2
3
4
5
6
7
8
H3
H4
Figure 2.1 Power On/Off Button
Figure 2.2 Power Input Connector
Figure 2.3 Ethernet Connector (LAN)
10/100/1000 Mbps Signal Name
BI_DA+(GHz)
BI_DA+(GHz)
BI_DB+(GHz)
BI_DC+(GHz)
BI_DC-(GHz)
BI_DB-(GHz)
BI_DD+(GHz)
BI_DD-(GHz)
GND
GND
13
ARK-1221L User Manual
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