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Detailed descriptions
16.1 Motherboard
Parallel interface LPT1, X609
Parallel interface
Pinno.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 – 25
PS/2 mouse interface, X21 7 to 12
PS/2
130
Short name
Meaning
/ Strobe (CLK)
Data message
Data - Bit 0
Data channel 0
Data - Bit 1
Data channel 1
Data - Bit 2
Data channel 2
Data - Bit 3
Data channel 3
Data - Bit 4
Data channel 4
Data - Bit 5
Data channel 5
Data - Bit 6
Data channel 6
Data - Bit 7
Data channel 7
/ACK
Data acknowledge
BUSY
Not ready
PE (PAPER END)
Paper end
SELECT
Device selection
/ AUTO FEED
Automatically new line
/ ERROR
Device error
/ INIT
Reset / Initialization
/ SELECT IN
Printer selection
GND
Ground
Pin no.
1
2
3
4
5
6
Short name
Meaning
DAT
Data channel, mouse Input/output
–
Not used
GND
Ground
P5VFK
+ 5 V (fused)
CLK
Clock channel,
mouse
–
Not used
Operating Instructions, 06/2008, A5E02203168-01
Input / output
Output (open collector)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Output (TTL level)
Input (4.7 kΩ pull up)
Input (4.7 kΩ pull up)
Input (4.7 kΩ pull up)
Input (4.7 kΩ pull up)
Output (open collector)
Input (4.7 kΩ pull up)
Output (open collector)
Output (open collector)
–
Input / output
–
–
Output
Input/output
–
SIMATIC Rack PC 847B
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