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Technical information
From UART
TX
TxD
DE
RX
RxD
RE
Figure 29 Data output port schematic
Each bi-directional data port is isolated from the other bi-
!
directional data ports and from the AIS transceiver's
internal power supply.
6.2 Output drive capability of bi-directional ports
Bi-directional ports can supply an output current of up to 30mA. The output
voltages are 0 (low) and 3.3V (high). Effective load resistance should be in
excess of 100 Ohms.
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Vcc
DC to DC Converter
Oscillator
Digital isolation
Encode
Encode
Encode
GND 1
Isolation Barrier
V ISOOUT
Rectifier
Regulator
Transceiver
Decode
Decode
Decode
ADM2587E
GND 2
V ISOIN
Data output port
Y
TX_A
Z
TX_B
RX_A
A
B
RX_B
RX_COM
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