EMRFD Message Archive 5216

Message Date From Subject
5216 2010-09-21 14:33:50 ep_mand Leader DMM/2 'Scope Model 300: Printer cable??
Does anybody know the cable connections for printer ("Simplified 8-bit parallel Centronics type printer interface")? There is a 2 * 10 pin connector in the back of that old 30 MS/s LCD 'scope. Trying to get data into normal "centronics" printer. - EePee, OH2NFI.
5217 2010-09-21 14:41:53 R Wall Re: Leader DMM/2 'Scope Model 300: Printer cable??
Maybe this link will help:


Roderick Wall, vk3yc.

5218 2010-09-21 14:43:42 R Wall Re: Leader DMM/2 'Scope Model 300: Printer cable??
Or maybe this link:


Roderick Wall, vk3yc.

5219 2010-09-21 14:57:17 ep_mand Re: Leader DMM/2 'Scope Model 300: Printer cable??
Yes, I know exactly how a "normal" Centronics interface works, but it would be nice to see without very much effort, where that old 'scope sends data bits, strobe etc... / EePee.
5221 2010-09-22 08:18:02 Alan Melia Re: Leader DMM/2 'Scope Model 300: Printer cable??
Hi eePee This may be total nonesense but on the other hand........

I do remember in the 1970s and early 80s seeing computer printer ports with
a 20 pin box header. If my aging memory serves me right the BBC B had such a
connector. I remember a 20 wire length of ribbon conencted to an IDC 20-way
plug at one end and connected into one end of an IDC Centronics plug. I
think the cable went at the low numbered end of the Centronics (isn't pin1
the strobe ??) This seemed to work fine for the basic functions of data and
strobe and the NACK (?) but the paper out etc were up the other end of the
plug and were not used. I am guessing that would be adequate for a printer
on a simple DMM. BUT......its easy to do and try to see if it works for you.

I did find some leader data on there web site but this is probbaly an older

Best of Luck
Alan G3NYK