SENA Parani-ESD100-110-200-210 - Manual (Page 32)

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A.2. Connection Diagram
A.2.1. Parani-ESD100/110
A.2.1.1. When TTL level of MICOM is 3.3V
MICOM PARANI-
ESD100/110
MICRO-VDD
MICOM-RXD
MICOM-CTS
MICOM-RTS
MICOM-RST
MICOM-DTR
MICOM-DSR
TXD
RXD
CTS
RTS
RST
DTR
DSR
MICOM-TXD
MICOM-GND
VDD
GND
MICOM-DCD DCD
DC 3.3V
A.2.1.2. When TTL level of MICOM is 3.3V and Hardware Flow Control is not used