Electronics help needed

Wever

Wever

Member
Joined
22 Mar 2006
Messages
34
Location
La Rochelle
www.sailblogs.com
For a variety of reasons I have decided to connect a thermal printer to my nav6 plus navtex ( to print out hourly position data). I have found a thermal printer that looks like it will do the right job but it accepts data at 9600 baud and the navtex outputs at 4800 baud. I've searched the internet and can't seem to find any converters. Any advice?
 
A converter would be rather a bodge: much the best thing is to change the baud rate on one of the two devices. It is almost certain that both ends are using standard UART chips or block of circuitry built-in to a larger IC, so the hardware at either end would operate at a varety of baud rates (of which 9600 is the most 'standard'). But I put hardware in italics to distinguish it from software; it's not certain that there is an interface which would instruct the hardware to change baud rate. If you gave make and model numbers of both it might help.
 
I attached a Citizen PD24 printer using RS232 and the printer itself can be set up by pressing various key sequences to change functions, including the RS232 port speed. Alternatively, you may find that you can send commands to the printer to change functions using ESC command options which the printer should then retain in a non-volatile memory.
 
Thank you all for your replies. I think I now have a plan. It doesn't appear that I can change the speed on the navtex but i have spoken to the printer manufacturer (China) and they have sent me a software tool to reset the printer speed. I now need to just find an old enough PC to support rs232.
 
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