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Chapter 7 Diagnostic Menu.................................................. 73
7.1 Overview.................................................................................................. 73
7.2 Testing the Display Contrast.................................................................... 73
7.3 Testing the Keypad.................................................................................. 74
7.4 Testing the Beeper .................................................................................. 74
7.5 Testing the RS232 Connection ................................................................ 75
7.6 Testing the RS485 Tailgate Connection .................................................. 76
7.7 Testing the USB Port ............................................................................... 77
7.8 Testing the Magnetic Stripe Reader ........................................................ 78
7.9 Testing the Smart Card Reader ............................................................... 79
7.10 Testing the SAMs .................................................................................... 80
7.11 Testing the Touch Screen........................................................................ 81
7.12 Testing Signature Capture....................................................................... 82
7.13 Testing Pen Calibration ........................................................................... 83
7.14 Testing Finger Calibration........................................................................ 84
7.15 SCV Verification....................................................................................... 85
Chapter 8 Architecture ......................................................... 86
8.1 Overview.................................................................................................. 86
8.2 System Architecture................................................................................. 86
8.3 Host Connections .................................................................................... 87
8.4 Terminal Architecture............................................................................... 87
8.4.1 Operating System .............................................................................................88
8.4.2 Digitizer .............................................................................................................90
8.4.3 Transmitting Data..............................................................................................90
8.5 Download File Architecture...................................................................... 91
Chapter 9 Key Architecture.................................................. 92
9.1 Overview.................................................................................................. 92
9.2 Sponsor Key (KTK).................................................................................. 93
9.3 Terminal Based Keys............................................................................... 93
9.4 Application Based Keys ........................................................................... 94
9.4.1 Special Keys .....................................................................................................94
9.4.2 Master Keys ......................................................................................................94
9.4.3 Session Keys ....................................................................................................95
9.4.4 DUKPT Keys .....................................................................................................95
9.5 Security Options ...................................................................................... 95
9.5.1 Prompts Authentication Key Options ................................................................96
9.5.2 Change Terminal ID Option ..............................................................................96
9.5.3 Prompt MACing.................................................................................................96
9.5.4 Code MACing....................................................................................................97
9.5.5 Double-Length Key MAC Calculation ...............................................................97
9.5.6 Atalla Key Block Protection Option ...................................................................98
9.5.7 Terminal Startup Verify MAC Option.................................................................98
9.5.8 Visa PED Mode Option .....................................................................................98
9.5.9 Financial Key Option .........................................................................................99