Antennas; Ethernet Interfaces; Ethernet Connector Pinout; Ethernet Connector Pinout Description - Advantech ICR-3231 User Manual

2.2 Antennas

Connect cellular antennas to the router to main (ANT) and diversity (DIV) SMA connectors
on the front panel. For WiFi models, connect WiFi antennas to the router to WIFI1 and WIFI2
R-SMA connectors on the right panel. Connect the GNSS antenna to the router to GNSS SMA
connector on the right panel between the WiFi antennas.
Only run the router with a cellular antenna connected to the main antenna connector, as
the energy from the transmission is effectively reflected by the open end and can damage
the equipment.
Recommended tightening moment for screwing the antenna to the SMA connectors is 0.9 Nm.
The diversity antenna improves the radio capability of the router at low signal strength.

2.3 Ethernet Interfaces

The panel socket of RJ45 is used for Ethernet interface. The pinout of the socket is shown
in Figure 14 and described in Table 6.
Pin Signal mark
TXD+
1
2 TXD-
3 RXD+
—
4
5 —
6 RXD-
—
7
8 —
Table 6: Ethernet Connector Pinout Description
The isolation barrier of the Ethernet ports against the ground is 1500 V.
Figure 14: Ethernet Connector Pinout
Description
Transmit Data – positive pole
Transmit Data – negative pole
Receive Data – positive pole
—
—
Receive Data – negative pole
—
—
15
ICR-3231