Release 04/02

Maintaining and Extending the Computing Unit

Components on the motherboard

The following components are located on the computing unit:

Number

Functions

 

 

X1

Processor module with heat sink

 

 

X3

IDE connector for CD-ROM

 

 

X4

IDE connector for 2.5” hard disk

 

 

X5

Floppy disk cable connector

 

 

X6

PS/2 mouse connector

 

 

X6

PS/2 keyboard connector

 

 

X9

Serial port COM 1/TTY

 

 

X9

Parallel port LPT 1

 

 

X11

Serial interface COM 2

 

 

X11

Socket for VGA monitor

 

 

X13

Connection for 105 W power supply

 

 

X14

Connection for 85 W power supply

 

 

X19, X20

System memory, 2 slots

 

 

X23

Not connected

 

 

X24

Connector for clock battery

 

 

X26

Connector, alternative COM2

 

 

X28

Not connected

 

 

X29

Plug for CPU fan

 

 

X31

IDE connector for LS 120

 

 

X40

USB bus connector

 

 

X41

IDE connector for 3.5” hard disk

 

 

X44

Plug for front interfaces

 

 

X70, X71

TTY sender/receiver

 

 

X128

Connector for unit fan

 

 

X400

Connector for LVDS display (3.3 V/5 V)

 

 

X401

Not connected

 

 

X402

Not connected

 

 

X420

Connector for 5 V CMOS display

 

 

X500

RJ45 socket for Ethernet LAN

 

 

X600

MPI/DP port

 

 

X700

PC card slot

 

 

S1

Momentary-contact switch for hardware reset

 

 

T1

Temperature sensor (in processor)

 

 

T2

Temperature sensor

 

 

T3

Temperature sensor

 

 

Panel PC 670 Computing Unit, Equipment Manual

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Image 67
Siemens PC 670 manual Components on the motherboard, Number Functions