Hi Guys.
I would like to find a QL SERIAL to PRINTER cable for the Sinclair "Seikosha" Printer.
Someone have a scheme for reproduce it?
Thanks and best regards.
Sinclair QL printer (Seikosha) cable
Re: Sinclair QL printer (Seikosha) cable
There are some manuals for this on Dilwyn's site :
http://www.dilwyn.me.uk/docs/manuals/in ... #qlprinter
Seems the Serial interface connections are :
RS-232C, 25-pin D male.
Pin configuration of the input connector.
PIN SIGNAL EXPLANATION
1 FG Frame Ground
3 RXD Input data
7 SG Signal Ground
20 DTR BUSY/READY state fo the printer
ON (+3 ~ +25V) … Ready to receive data
OFF (-3 ~ -25V) … Busy
so from QL - Ser1, you want these connections:
1 >>>> 1/7 on printer DB25
3 >>>> 3 on printer DB25
4 >>>> 20 on printer DB25
leave other connectors unconnected. (For serial 2 use 1, 2 and 5 instead of 1, 3 and 4)
http://www.dilwyn.me.uk/docs/manuals/in ... #qlprinter
Seems the Serial interface connections are :
RS-232C, 25-pin D male.
Pin configuration of the input connector.
PIN SIGNAL EXPLANATION
1 FG Frame Ground
3 RXD Input data
7 SG Signal Ground
20 DTR BUSY/READY state fo the printer
ON (+3 ~ +25V) … Ready to receive data
OFF (-3 ~ -25V) … Busy
so from QL - Ser1, you want these connections:
1 >>>> 1/7 on printer DB25
3 >>>> 3 on printer DB25
4 >>>> 20 on printer DB25
leave other connectors unconnected. (For serial 2 use 1, 2 and 5 instead of 1, 3 and 4)
-
- Font of All Knowledge
- Posts: 3973
- Joined: Mon Dec 20, 2010 11:40 am
- Location: Sunny Runcorn, Cheshire, UK
Re: Sinclair QL printer (Seikosha) cable
Hi,Outsoft wrote:Hi Guys.
I would like to find a QL SERIAL to PRINTER cable for the Sinclair "Seikosha" Printer.
Someone have a scheme for reproduce it?
Thanks and best regards.
I think I have a standard QL SER to DB25 cable.
I will check and PM you later.
Regards,
Derek
Derek
Re: Sinclair QL printer (Seikosha) cable
Thanks for the scheme.Pr0f wrote:There are some manuals for this on Dilwyn's site :
http://www.dilwyn.me.uk/docs/manuals/in ... #qlprinter
Seems the Serial interface connections are :
RS-232C, 25-pin D male.
Pin configuration of the input connector.
PIN SIGNAL EXPLANATION
1 FG Frame Ground
3 RXD Input data
7 SG Signal Ground
20 DTR BUSY/READY state fo the printer
ON (+3 ~ +25V) … Ready to receive data
OFF (-3 ~ -25V) … Busy
so from QL - Ser1, you want these connections:
1 >>>> 1/7 on printer DB25
3 >>>> 3 on printer DB25
4 >>>> 20 on printer DB25
leave other connectors unconnected. (For serial 2 use 1, 2 and 5 instead of 1, 3 and 4)
I can replicate now.
Very very kindly regards!!!
Re: Sinclair QL printer (Seikosha) cable
Need to use it on my German QL so DB9 to DB25 (with the same connections of the BT SER1 port on QL side).Pr0f wrote:There are some manuals for this on Dilwyn's site :
http://www.dilwyn.me.uk/docs/manuals/in ... #qlprinter
Seems the Serial interface connections are :
RS-232C, 25-pin D male.
Pin configuration of the input connector.
PIN SIGNAL EXPLANATION
1 FG Frame Ground
3 RXD Input data
7 SG Signal Ground
20 DTR BUSY/READY state fo the printer
ON (+3 ~ +25V) … Ready to receive data
OFF (-3 ~ -25V) … Busy
so from QL - Ser1, you want these connections:
1 >>>> 1/7 on printer DB25
3 >>>> 3 on printer DB25
4 >>>> 20 on printer DB25
leave other connectors unconnected. (For serial 2 use 1, 2 and 5 instead of 1, 3 and 4)
Re: Sinclair QL printer (Seikosha) cable
Sorry for SER1 is:Pr0f wrote:There are some manuals for this on Dilwyn's site :
http://www.dilwyn.me.uk/docs/manuals/in ... #qlprinter
Seems the Serial interface connections are :
RS-232C, 25-pin D male.
Pin configuration of the input connector.
PIN SIGNAL EXPLANATION
1 FG Frame Ground
3 RXD Input data
7 SG Signal Ground
20 DTR BUSY/READY state fo the printer
ON (+3 ~ +25V) … Ready to receive data
OFF (-3 ~ -25V) … Busy
so from QL - Ser1, you want these connections:
1 >>>> 1/7 on printer DB25
3 >>>> 3 on printer DB25
4 >>>> 20 on printer DB25
leave other connectors unconnected. (For serial 2 use 1, 2 and 5 instead of 1, 3 and 4)
so from QL - Ser1, you want these connections:
1 >>>> 1/7 on printer DB25
3 >>>> 3 on printer DB25
4 >>>> 20 on printer DB25
1 >>>> 1 or 1 >>> 7 on Printer Serial DB25 port?
I need a scheme for produce a DB9 to DB25 ser1 cable for the printer.
Thanks a lot
![Wink ;)](./images/smilies/icon_e_wink.gif)
Re: Sinclair QL printer (Seikosha) cable
Simon,
on the DB-25 end, 1 is "Shield" (which is normally GND) and 7 is "signal ground" (which is normally GND as well). For non-exotic applications like QL-to-printer, that is the same. So, feed 7 of the 9-pin to both 1 and 7 on the DB-25.
On second thought, shielding (the mesh around the wires) should only be connected on one end of the cable - So, if you connect the shield to the printer end (1), leave it open on the QL end and vice versa.
Tobias
on the DB-25 end, 1 is "Shield" (which is normally GND) and 7 is "signal ground" (which is normally GND as well). For non-exotic applications like QL-to-printer, that is the same. So, feed 7 of the 9-pin to both 1 and 7 on the DB-25.
On second thought, shielding (the mesh around the wires) should only be connected on one end of the cable - So, if you connect the shield to the printer end (1), leave it open on the QL end and vice versa.
Tobias
ʎɐqǝ ɯoɹɟ ǝq oʇ ƃuᴉoƃ ʇou sᴉ pɹɐoqʎǝʞ ʇxǝu ʎɯ 'ɹɐǝp ɥO
Re: Sinclair QL printer (Seikosha) cable
Thankstofro wrote:Simon,
on the DB-25 end, 1 is "Shield" (which is normally GND) and 7 is "signal ground" (which is normally GND as well). For non-exotic applications like QL-to-printer, that is the same. So, feed 7 of the 9-pin to both 1 and 7 on the DB-25.
On second thought, shielding (the mesh around the wires) should only be connected on one end of the cable - So, if you connect the shield to the printer end (1), leave it open on the QL end and vice versa.
Tobias
![Wink ;)](./images/smilies/icon_e_wink.gif)