We have found that most card readers in the 
        AV-TS Black Wedge units are not capable of reading our standard "memory 
        only" voter smart card.  To allay any fears about our current 
        production, all Blue and White AV-TS units ever produced are fully 
        capable of reading all versions of the smart cards that we 
        deliver.  And all desktop smart card readers are capable of reading 
        all versions of the smart cards that we deliver.
         
        The reason for this incompatibility is due to 
        the Model of the smart card reader installed in the Black Wedge 
        units.  The Black Wedge units were made with the 
        original Model 171 smart card reader (a.k.a. 
        171TDAI, 171T1DAI, regardless of 
        revision).  The Blue and White units are made with a newer Model 
        171A smart card reader.  The Black Wedge units can 
        only read/write "microprocessor" type cards, they cannot read/write 
        "memory only" cards.  However, the newer Model 171A readers (a.k.a. 
        171A, 171ATDAI regardless of revision) 
        can read/write to all types of cards we deliver.  I have 
        confirmation on this information from Axiohm Corporation who 
        manufactures these card readers.
         
        The four types of smart cards we have delivered 
        can be categorized by the shapes of their contact areas.  
        There are two microprocessor 
        types, the "L" shape and the "oval" shape.  
        There are two "memory only" types, the "X" shape and the "Atmel" 
        type.  Please see the attached JPEGS for a pictures of these 
        contact shapes.
         
        The only state we run Black Wedge units is in 
        Tennessee and then in three counties, Shelby, Bradley, and 
        Rutherford.  These accounts should only be using the 
        "microprocessor" type of card as voter cards.  These 
        accounts have been using the "microprocessor" type smart card all 
        along because when they were sold the units, that type of card was the 
        only one available.  Most of their smart cards will already be of 
        the right type.  It has only been recent shipments of smart cards 
        to Shelby County that has brought this to light.
         
        Fair warning:  If anybody does any Monday 
        morning quarterbacking on this one, I'll come looking for you to find 
        out why this information wasn't disseminated before.
         
        Ian