IBM 4840-563 System Reference - Page 54

Ethernet connector, External video connector, Signal, Connector

Page 54 highlights

25 HDSEL 26 DSKCHG Ethernet connector 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 Pin Signal I/O 1 TxD+ O 2 TxD- O 3 RxD+ I 4 Ground 5 Ground 6 RxD- I 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 81 Page 54 of

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diskette is write protected (causes write
commands to be ignored)
25
HDSEL
O
Head Select. Selects the side for R/W
operations (0 = side 1, 1 = side 0)
26
DSKCHG
I
Disk Change. Sense that the drive door is
open or the diskette has been changed
Ethernet connector
Pin
Signal
I/O
1
TxD+
O
2
TxD-
O
3
RxD+
I
4
Ground
5
Ground
6
RxD-
I
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
Page 54 of
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