12
The resulting dimensions, after connecting the user system interface board to the user system, are
shown in figures 6, 7, and 8.
24.5
55.0
12.5
68.4
30.0
37.5 27.5
29.2
IC socket
(NQPACK144SD manufactured by
Tokyo Eletech Corporation)
User system
Spacer (φ6.0)
EV-chip unit
Pin 1
Top view
External bus trace unit
Optional memory unit
39.19
24.5
24.5
39.19
Unit: mm
Dimension and tolerance
Tolerance
±0.05
±0.10
±0.15
±0.20
±0.30
Dimension
Up to 1.2
1.3 to 2.0
2.1 to 5.0
5.1 to 10.0
10.1 or above