PITCH 2.X Messages

    0x20        Time
    0xB1        Time Reference (C1 Only) 
    0x9A        Complex Instrument Definition Expanded
    0x2E        Symbol Mapping
    0xAD        Auction Notification
    0xAE        Auction Cancel
    0xAF        Auction Trade
    0xD1        Auction Update
    0x96        Auction Summary
    0x2D        End of Session