Siemens SIMATIC Panel PC 870 Equipment Manual page 44

Servicing and Expanding the Computing Unit
Components on the motherboard
The following components are located on the computer unit:
Slot
X1
X3, X4, X5
X7
X10
X12
X20
X22
X23
X25
X26
X28
X29
X30
X31
X33
X34
X36
X42
X41
X44
X49
X50
X300
X303
X400
X700
S1
4-6
CPU socket (ZIF)
DIMM socket for memory expansion
2.54 mm primary IDE (HDD)
2 mm secondary IDE
Connector for FPC secondary IDE (CD-ROM)
Socket connector for bus board
PS/2 mouse
PS/2 keyboard
Connection for 1.44 MB slimline floppy
Connection for standard floppy
Internal socket connector for COM1 (V.24/TTY) module
Internal socket connector for COM1 (V.24/TTY) module
Serial interface COM1/TTY
Serial interface COM2
COM2, internal, for touch screen
Parallel interface LPT 1
USB port
Device fan connection
Processor fan
I/O interface for connecting front components
Connection of backup battery
Power supply connection
LVDS display interface
VGA monitor connection
MPI/DP 12
Ethernet
Reset button
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Release 11/02
Port