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iVIEW-100 Series user’s Manual, 2006, v2.0 ----- 98
7.4 Using COM2 for RS-232 Application
The COM2 is a 5-wire RS-232 port. It includes the following 5 pins:
GND: signal ground
TXD2: transmit data to external RS-232 device
RXD2: receive data from external RS-232 device
RTS2: request to send
CTS2: clear to send
Refer to Chapter 2.6.2 for wire connection