Lenovo Aptiva Hardware Maintenance Manual page 150

P&D-D Signal Pin Assignments
Pin
1 TMDS Data2 +
2 TMDS Data2 -
3 TMDS Data2 return
4 Unused
5 Unused
6 Unused
7 TMDS Clock return
8
Charge power
9 1394 pair A, data -
10 1394 pair A, data +
11 TMDS Data1 +
12 TMDS Data1 -
13 TMDS Data1 return
14 TMDS Clock +
15 TMDS Clock -
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 func-
tion 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.
116 IBM Desktop System HMM
Signal
1
+
Pin
16 USB data +
17 USB data -
18 1394 outer shield
(optional) & Charge
Power return
19 1394 Vg
20 1394 Vp
21 TMDS Data0 +
22 TMDS Data0 -
23 TMDS Data0 return
24 Unused
25 DDC return
26 DDC data (SDA)
27 DDC clock (SCL)
28 +5 VDC
29 1394 pair B, Clock +
30 1394 pair B, Clock -
Signal
2