Siemens SIMATIC Rack PC 840 Manual page 54

SIMATIC Rack PC 840 Expansions
Components on the Motherboard
The following components are located on the motherboard of the Rack PC:
Slot
X1
X3, X4, X5
X7
X10
X20
X22
X23
X26
X28
X29
X30
X31
X34
X36
X39
X41
X42, X43
X44
X50
X303
X400
X700
* Optional product feature
4-6
Processor socket with heat sink
DIMM slots for memory expansion
2.54 mm primary IDE
2.54 mm secondary EIDE
Socket connector for bus board
PS/2 mouse connection
PS/2 keyboard connection
Connection for standard floppy
Internal socket connector for COM1 (V.24/TTY) module
Internal male connector for COM1 (V.24/TTY) module
Serial port COM 1/TTY
Serial port COM 2
Internal Parallel port LPT 1
USB port (2x high current USB)
SCSI LED active
Processor fan
Device fan connector
I/O interface for front port connection
Connection to power supply (power supply unit)
VGA monitor connector
PROFIBUS/MP *
Ethernet
Interface/Port
SIMATIC Rack PC 840 Manual
A5E00104826-03