Hello,
Have a customer that moved into a building with an existing system. Heres the info:
I have a Panasonic KX-TDA50, using 7630 phones. Trying to get 8 port digital station card to work in slot 5. System never sees card.
Software is MPR 1.1022,

Slot 1. KX-TDA5170 4-Port Hybrid Extension Card (HLC4)
Slot 2. KX-TDA5180 4-Port Analog Trunk Card (LCOT4)
Slot 3 KX-TDA5171 4-Port Digital Extension Card (DLC4)
Slot 4 I tried with a 4 port digital, a 4 port CO and empty.
Slot 5 KX-TDA5172 8-Port Digital Extension Card (DLC8)

I have initialized system with only a card in slots 1,2,5 with 8 phones.
There is only one power supply could this be the problem?
Any info would be greatly appreciated.

Doug