What a shame indeed.  I have now found a lead in a QL box with a moulded 
9 pin lead on one end and a 25 pin D on the other - presume this is the 
QL one (fingers crossed).

Is it safe to try I wonder?

Rich

Tony Firshman wrote:
> Rich Mellor wrote:
>   
>> Can someone please clarify the wiring on the QL Serial ports on the 
>> German and US QLs where a 9 Pin DIN was used instead of a BT style plug?
>>
>> Dilwyn's site says that the same pins were used as on the BT style plug, 
>> but GND (pin 1) appears wrong:
>>
>> 1     GND     signal ground
>> 2     TxD     output
>> 3     RxD     input
>> 4     DTR (=RTS)     ready output
>> 5     CTS     ready input
>> 6     -     +12V
>>     
> Just got home and yes, that is right - well at least for the German QL.
> The US QL just has to be the same.
>
> What a pity.
>
> Tony
>   
>> I am asking as someone in the USA needs a printer serial lead to connect 
>> their QL and Sinclair QL-800 Printer.  I was wondering if I could use 
>> the Z88 serial lead, which is wired as:
>>
>> 1 -     unswitched  +5v at 10 uA            output
>> 2 TxD      transmit data            output
>> 3 RxD     receive data            input
>> 4 RTS     ready to send            output
>> 5 CTS     clear to send            input
>> 6 -         reserved for future use
>> 7 GND
>> 8 DCD    data carrier detect            input
>> 9 DTR    switched +5v  at 1mA             output
>>
>>     
>
>
>   


-- 
Rich Mellor
RWAP Services
URL:http://www.rwapsoftware.co.uk
URL:http://www.rwapservices.co.uk


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