| Serial extenders faq
- How can I use the ETR-RS232 to transfer 3 wire RS-232 (RX, TX, and Ground)?
- Does the ETR-RS232 require external power?
- Does the ETR-RS232 support all handshaking signals?
Q1. How can I use the ETR-RS232 to transfer 3 wire RS-232 (RX, TX, and Ground)?
A. Please use Pin #2 (TX), Pin #3 (RX), and Pin #5 (Ground) of the ETR-RS232 connector for your three wire application. Please leave Pin #7 (CTS) and Pin #8 (RTS) alone, this pair of signals are used for hardware handshaking.
Q2. Does the ETR-RS232 require external power?
A. Yes, the ETR-RS232 requires a 9V 300 mA power supply.
Q3. Does the ETR-RS232 support all handshaking signals?
A. No, the ETR-RS232 just extends the TX and RX lines.
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