IBM Aptiva 2170 Hardware maintenance service manual - page 194
160
1
-- Optional output from monitor.
2
-- Note: The IEEE-1394 internal cable bundle needs an outer shield to
minimize internal crosstalk within the cable construction. The outer EMI
containment shield for the IEEE-1394 function will be provided by the
overall P&D cable shield. If the internal bundle shield for IEEE-1394 is
required, this may be terminated to pin #18. It is recommended that this
implementation be evaluated in the case where both Charge Power return
and the IEEE-1394 internal cable bundle shield will be commoned to pin
#18.
P&D-D Signal Pin Assignments
Pin
Signal
Pin
Signal
1
TMDS Data2 +
16
USB data +
2
TMDS Data2 -
17
USB data -
3
TMDS Data2 return
18
1394 outer shield (optional) &
Charge Power return
2
4
Unused
19
1394 Vg
5
Unused
20
1394 Vp
6
Unused
21
TMDS Data0 +
7
TMDS Clock return
22
TMDS Data0 -
8
Charge power +
1
23
TMDS Data0 return
9
1394 pair A, data -
24
Unused
10
1394 pair A, data +
25
DDC return
11
TMDS Data1 +
26
DDC data (SDA)
12 TMDS
Data1
-
27
DDC
clock
(SCL)
13
TMDS Data1 return
28
+5 VDC
14
TMDS Clock +
29
1394 pair B, Clock +
15
TMDS Clock -
30
1394 pair B, Clock -