HP Deskpro /M Desktop PC 486/33M Deskpro Personal Computers Service Reference - Page 39

Ethernet AUI, Parallel Interface, Connector and Icon, Signal

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Page 39 highlights

Ethernet AUI Connector and Icon 87 65 43 21 15 14 13 12 11 10 9 Parallel Interface Connector and Icon 13 12 11 10 9 8 7 6 5 4 3 2 1 25 24 23 22 21 20 19 18 17 16 15 14 Pin Signal 1 Ground 2 Negative AUI Differential Collision 3 Positive AUI Differential Collision 4 Negative AUI Differential Transmit 5 Positive AUI Differential Transmit 6 Ground 7 Ground 8 Negative AUI Differential Receive 9 Positive AUI Differential Receive 10 +12V 11 Ground 12 Ground 13 Not Used 14 Not Used 15 Not Used 16 Not Used Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18-25 Signal Strobe Data Bit 0 Data Bit 1 Data Bit 2 Data Bit 3 Data Bit 4 Data Bit 5 Data Bit 6 Data Bit 7 Acknowledge Busy Paper End Select Auto Linefeed Error Initialize Printer Select IN Signal Ground A-2 Connector Pin Assignments

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A-2
Connector Pin Assignments
Ethernet AUI
Connector and Icon
Pin
Signal
7
13
12
11
10
8
9
5
6
4
3
15
14
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Ground
Negative AUI Differential Collision
Positive AUI Differential Collision
Negative AUI Differential Transmit
Positive AUI Differential Transmit
Ground
Ground
Negative AUI Differential Receive
Positive AUI Differential Receive
+12V
Ground
Ground
Not Used
Not Used
Not Used
Not Used
Parallel Interface
Connector and Icon
Pin
Signal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18-25
Strobe
Data Bit 0
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
Data Bit 7
Acknowledge
Busy
Paper End
Select
Auto Linefeed
Error
Initialize Printer
Select IN
Signal Ground