On 15 Nov, 2013, at 8:53 pm, Scott Lawrence wrote: > It would seem that I can make a RS422 Mini Din 8 (mac) to RS232 D9 adapter > easily, just tie the TX+,RX+ on the '422 side to ground, and TX-, RX- to the > TX/RX lines of the 232 side.
*** CAUTION *** RS232 uses ±12V signalling, RS422 uses TTL (0-5V) signalling. You will need a level shifter to prevent the RS232 port from blowing your Mac's serial port. These are, fortunately, quite easily available in chip form. - Jonathan Morton -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
