Hi Guys

First to remind you I'm an absolute novice .. .. .

I've just taken delivery of a new 3040T .. .. from a company who bought for a project that didn't happen, so never used it.

clearly hasn't been used .. .. steppers are all still in wrappers etc .. . however, being a suspicious old fart, I thought I'd give the control box a look over before plugging it in .. ..

I've found an opto-coupler on the JP-382A controller board, marked ENO, which has one pin 'snipped' .. by snipped I mean it looks as though it has been deliberately cut through for some reason to break the contact.

Since I don't know what ENO stands for I'm a bit nervous .. .. anybody got any experience please ?

Thank you

S