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Ethernet Connector - IBM 4840-563 System Reference Manual

Technical system reference surepos 500 series
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25
HDSEL
26
DSKCHG

Ethernet connector

Pin
Signal
1
TxD+
2
TxD-
3
RxD+
4
Ground
5
Ground
6
RxD-
7
Ground
8
Ground
External video connector
Pin
Connector
1
Red
2
Green
3
Blue
4
Monitor ID2 - not
used
5
Ground
6
Red ground
7
Green ground
8
Blue ground
9
no connector
10
Gound
11
No connector
12
MON ID1
13
Horizontal sync
SurePOS 500 Model XX3 Technical Reference, v 1.3
diskette is write protected (causes write
commands to be ignored)
O
Head Select. Selects the side for R/W
operations (0 = side 1, 1 = side 0)
I
Disk Change. Sense that the drive door is
open or the diskette has been changed
I/O
O
O
I
I
81
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Surepos 563Surepos 553Surepos 543Surepos 533