KSI POS keyboard cable help

[Bruce boy]

Hey i recently was diggin threw my garage when i found a POS keyboard, KSI-1392.

I would like to use it but i don't have a cable, and i'm scared to buy the wrong one. The port on the keyboard looks to be an RJ45.

 

I e-mailed the company and they havent replied for now 3 months.

 

I found this PDF for the keyboard which states that it's PS/2.
https://cdn.barcodesinc.com/themes/barcodesinc/pdf/KSI/ksi1392.pdf

If anyone can help me please

[mariushm]

ps/2 uses 6-7 wires... see https://pinouts.ru/Inputs/KeyboardPC6_pinout.shtml

 

7th would be the round metal of ps/2 jack.

 

Maybe they simply wired these 6-7 wires to that rj45 plug - you could open the keyboard and use a multimeter to see which pin his VCC (probably 5v) and which is ground (check continuity with minus/gnd of psu or case) then it's a matterof figuriing data an clk pins... may be written on circuit board by the jack

 

you can buy ps/2 extension cables and cut one jack and crimp rj45 plug : https://www.digikey.com/products/en?dc=42192

or various ps/2 cords: https://www.digikey.com/products/en/cable-assemblies/circular-cable-assemblies/448?k=ps%2F2&k=&pkeyword=ps%2F2&sv=0&pv2380=6&sf=0&FV=ffe001c0&quantity=&ColumnSort=0&page=1&pageSize=25

 

or plain cable: https://www.digikey.com/product-detail/en/storm-interface/1200-001003/MGR1603-ND/455968

 

---

 

also rj45 may be a mix of ps/2 and serial ex 4 wires for ps/2 (5v, gnd, data, clock) and 2+ wires for serial (transmit, receive)

 

Pin	Function	Dir	Description
1	DATA		Key Data
2	n/c or DATA2 for dual PS2	-	Not connected
3	GND		Gnd
4	VCC		Power , +5 VDC
5	CLK		Clock
6	n/c or CLK2 for dual PS2	-	Not connected