Power supplies 397C Power Unit. TN746B Analog Line Card (picture not shown). TN754 Digital Line Card (picture not shown). TN786B Processor & CPP1 Memory expansion cards. Also a MADGE Acccess Switch 20.The item "AT&T Lucent Avaya Definity Switch Circuit Cards, ISDN Phones" is in sale since Thursday, October 21, 2021. This item is in the category "Business & Industrial\Office\Telecom Systems\Phone Switching Systems & PBXs". The seller is "mulcahyathome" and is located in Richardson, Texas. This item can't be shipped, the buyer must pick up the item.