Siemens PC 670 - Manual (Page 66)

Maintaining and Extending the Computing Unit Release 04/02
4-6 Panel PC 670 Computing Unit, Equipment Manual
4.1.4 Motherboard
The motherboard is the heart of the computing unit. Here, data are processed and
stored, and interfaces and device I/Os are controlled.
X44 X400
X402 X401 S1
X1
X20 X19
X700
X29
X28
X128
X71
X70
X10
X500
X600 X40 X1
1
X9 X6
X13 X26
X31
X5
X4
X3
X25
X420
X24
X14
X23
T1
T2
T3
X41
Figure 4-3 Motherboard