| (Model # ATMT25MF) Note: Picture may not represent the actual product. We are continuously working on improving our website and reserve the right to change specifications, availability, and pricing without prior notice. A singularly simple method of diagnosing RS232 interface problems. Connected from the RS232 port to a data line or modem. LEDs indicate the status of pin 2 (Transmit Data, TD), pin 3 (Receive Data, RD), pin 4 (Request to Send, RTS), pin 5 (Clear to Send, CTS), pin 6 (Data Set Ready, DSR), pin 8 (Carrier Detect, CD), and pin 20 (Data Terminal Ready, DTR). | |
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