Ethernet Connector (Lan); Usb Connector - JHCTech KMDA-3921 User Manual

2.3.1 Ethernet Connector (LAN)

The KMDA-3921/3920/3610 is equipped with 1 Intel I211AT chips and 1 Intel I219LM for
10/100/1000Mbps Ethernet controllers. The product provides 2*RJ45, with LED indicators on the front
side to show its Active/Link status (Green LED) and Speed status (yellow LED).
Table 2.1 for pin assignments.
Table 2.1: RJ-45 Connector pin assignments
Pin
1
2
3
4

2.3.2 USB Connector

The USB device allows data exchange between your computer and a wide range of simultaneously
accessible external Plug and Play peripherals.
The KMDA-3921/3920/3610 provides 4*USB3.0, 3*USB2.0(one inside for dongle). The USB interface
can be disabled in the system BIOS setup. Table 2.2 for USB2.0 pin assignments.
Table 2.2: USB2.0 Port Pin Assignments
Pin
1
3
10/100/1000BaseT Signal
TX+(10/100), LAN_DA+(GHz)
TX-(10/100), LAN_DA-(GHz)
RX+(10/100), LAN_DB+(GHz)
LAN_DC+(GHz)
Signal
USB_VCC
USB_D+
Figure 2. 9
Pin 10/100/1000BaseT Signal
5 LAN_DC-(GHz)
6 RX-(10/100), LAN_DB-(GHz)
7 LAN_DD-(GHz)
8 LAN_DD-(GHz)
Figure 2. 10
Pin Signal
2 USB_D-
4 USB_GND
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