dnc rs232-c for okk-mha-400

[Ethan H]

Hello
Another question well I am at it.
I would just like to confirm the cable for DNC
It as far as I can tell 25pin rs 232-c I should be able to communicate to the controller. The cable is it just a null modem cable or do I have to wire some different pin config. Controller is Mitsubishi Meldas I beleive. It says on the outside "okk graphic ml" but I beleive it is a mitsubishi.
Anyhelp would be appreciated and anyone with okk mha-400 manuals would be helpful.

[BKCOM]

What is Meldas? M300 or M500 series ?.
The cable is the same with fanuc.
DB9(PC SIDE) DB25(CNC SIDE)
2 ------- > 2
3 ------- > 3
5 ------- > 7
1--4--6 6--8--20.
Goodluck