Need to add 2 digital station cards, since cabinet is full would like to pull out unused DID cards in slots 5/6. Can cards be removed with system power up? will system auto identify card or do I have to program slot?

You can remove those cards with the system up but you will need to deprogram any circuits and the card and then program the new cards in those slots.

thanks

As a rule, cards with a circle on them or cards with a half-circle are hot-swappable, but cards with a square or with no markings are NOT hot swappable.

All trunk and station cards can be pulled and replaced under power. That said, if you pull the digital station card that supports the console (or the bosse's phone), or the T1 card that is the clock source for the system, people are GOING TO YELL! John C.

Or, pulling the cards and adding the new ones don'e mean that the new ones will work....

Seems to me that there are yellow markers in the "don't pull these under penalty of death" cards and the ones that say "caution don't pull these under power" stenciled on the card.

Carl

When you deprogram the old cards, they will show alarm. That's normal. Ditto the new cards until they are programmed.

One other thing. The square on a card indictes that it requires a high power slot. This is irrelevant in the lastest systems, but comes into play in the ealier ones.

Be safe and pull the cross connects before you install the cards… the trunks may still have voltage on them. I smoked a few cards that way many years ago.

GOOD point JimmyV! (Me,too. )