Siemens Simatic 620 Owner's Manual page 73

Figure 4-8 Short PCI Cards (5 V)
Figure 4-9 Long PCI Cards (5 V)
Note about Long PCI Cards
Before long PCI cards can be inserted into the guides of the fan trough, they must
be fitted with a so-called extender (this should form part of the scope of supply of
long PCI boards). Long PCI cards can be inserted into the guides of ISA modules
by means of this extender.
SIMATIC Box PC 620 Manual
A5E00131465-01
SIMATIC Box PC 620 Expansions
174,63 mm
6,875"
265 mm
10,48 "
4-13