Newhaven Products > Vacuum Fluorescent Displays

M0220SD-202SDAR1-S - how to connect to internal morherboard header?


Hi, I was hoping to use M0220SD-202SDAR1-S VFD in my media center PC by connecting it to motherboard's internal Serial header - can I use the cable soldered onto the unit, or do I have to solder a different one on?


To answer your question, yes you can use the linker cable as long as the pin-out matches your motherboards serial header.

Please see page 16 in the displays datasheet regarding the pin-out and how to configure the jumper settings.

Hope this helps!

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Thank you, exactly. I am trying to make sense out of this table - it refers to "connector" with up to 14 pins, so I assume it is pinout of the holes on the VFD board? The S version of M0220SD-202SDAR1 module comes with a short 5-wire cable soldered to some of these holes (GND, Vcc, SI/SO, STB, SCK?), and is terminated with a 5-pin connector. Were can I find out pinout of that connector?

On my motherboard, the serial header has two rows, one 5-pin and another 4-pin. It goes like this - first row:
pin 1 - DCD (or NDCD B-)
pin 3 - TXD# (or NSOUT B)
pin 5 - Ground (or GND)
pin 7 - RTS (or NRTS B-)
pin 9 - RI (or NRI B-)

Second row:
pin 2 - RXD# (or NSIN B)
pin 4 - DTR  (or NDTR B-)
pin 6 - DSR  (or NDSR B-)
pin 8 - CTS  (or NCTS B-)

Connector from VFD *might* physically fit to one of the rows, but pinout couldn't possibly match - unlike DB-25 interface, there is no Vcc in motherboard connector, so I need to grab 5V somewhere else...

Also, I am not so sure how to translate terminology used by mobo manufacturer with the terms used in VFD pinout above - where SI/SO, STB, SCK should be connected to? So confusing.



Correct, this VFD display has a 14 pin connection (see picture attached). The 5-wire cable is soldered to Pin NO. 1,2,3,4,6


1. GND
2. Vcc
3. SI/SO
4. STB
5. SCK

Please let me know if you need any additional help  ;)

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Thank you, Paul.

So all that is left for me is to find what pins on motherboard serial header to connect to what pins of VFD - where SI/SO, STB, SCK go to in the list below?

pin 1 - DCD
pin 2 - RXD#
pin 3 - TXD#
pin 4 - DTR 
pin 5 - Ground (or GND)
pin 6 - DSR 
pin 7 - RTS
pin 8 - CTS 
pin 9 - RI


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