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No
Signal
20
TxD1
21
USB D (-)
22
USB D (+)
23
GND
24
GND
In addition， UB4B0 provides a 10/100M Ethernet interface, CAN, Odometer interface, with
dual row 2x8 pin (2.0mm pitch).
As following：
No.
Signal
1
ETH_RD-
2
ETH_RD+
3
CENT_RD
4
ETH_TD+
5
ETH_TD-
6
CENT_TD
7
ETH_LINK
Type
Description
Data
Output
COM1 transmit data
Input/Output
USB D -
Input/Output
USB D+
Ground
GND
Ground
GND
Function
Negative electrode of Ethernet
receiving data, Differential pair.
Positive electrode of Ethernet
receiving data, Differential pair
Ethernet interface transformer
center receives taps
Positive electrode of Ethernet
receiving data, Differential pair
Negative electrode of Ethernet
receiving data, Differential pair.
Ethernet interface Transformer
center send taps
Ethernet interface connect indicator
19
Note
RS-232
Description
Connect to RD-
Connect to RD+
Connect to RD Center
Tap
Connect to TD+
Connect to TD-
Connect to TD Center
Tap
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