NCR 7458 - Manual (Page 92)

3-68 Chapter 3: Hardware Service
Signal Name Pin Pin Signal Name
AD10 108 B48 48 A48 GND
GND 109 B49 49 A49 AD9
CON KEY B50 A50 CON KEY
CON KEY B51 A51 CON KEY
AD8 110 B52 50A52 C_BE#0
AD7 111 B53 51A53 3.3V
+3.3V 112 B54 52A54 AD6
AD5 113B55 53 A55 AD4
AD3 114B56 54 A56 GND21
GND 115 B57 55 A57 AD2
AD1 116 B58 56 A58 AD0
+5V 117 B59 57 A59 +5V
ACK64# 118 B60 58 A60 REQ64#
+5V 119 B61 59A61 +5V
+5V 120 B62 60A62 +5V