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CTS on the Cambridge Z88 must be high for the Cambridge Z88 to transmit, and DCD must be high for the Cambridge Z88 to receive. For simple RS232 use, connect pins 5 and 8 to pin 9, and connect pins 2 (TxD), 3 (RxD), and 7 (GND) to the other computer.
A Supended Suspended message will be displayed if a battery low is flagged while sending or receiving, or if the Cambridge Z88 is switched off or the flap is opened. In this case you must repeat the transfer.
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