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Z88 to Serial Printer Connections
This section describes the pin connections for the Cambridge Z88 serial connector.
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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.
Import/Export
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Protocol
The Imp-Export protocol for Send & Batch Send/Receive
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The Import/Export protocol is functions is given here for programmers who want to interface the Cambridge Z88 to a computer by writing their own interface software.
Control sequences
| Sequence | Function |
|---|---|
| ESC N | Start of file name |
| ESC F | Start of file/end of file name |
| ESC E | End of file |
| ESC Z | End of file or end of list of files |
| ESC B x x | Where x x is two ASCII digits representing a hex byte. For example, the byte &A9 is transmitted with ESC B A 9. |
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The filename can be omitted.
XMODEM/YMODEM Protocol
This may be found on the internet. See XMODEM/YMODEM PROTOCOL
A 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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