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Intel
®
21143 PCI/CardBus 10/100Mb/s Ethernet LAN Controller
16 Design Guide
Figure 8. AUI 10BASE5 Network and Pin Connections
aui_rd+ 139
aui_rd- 140
aui_cd+ 137
aui_cd- 138
aui_td+ 142
aui_td- 143
21143
Transmit
Path
Receive
Path
GND
40.2
40.2
GND
40.2
40.2
511
Isolation
Transformer
Collision
Path
0.01 F µ
0.01 F µ
22 pF
XFMR_RD+
XFMR_RD-
XFRM_CD+
XFRM_CD-
XFMR_TD+
XFMR_TD-
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
GND
GND
0.22 F µ
0.01 F µ
40.2
40.2
+12 V
7
8
4
5
1
2
10
9
13
12
16
15
ST7032
LJ-05144.WMF
AUI
Connector
47
GND
18
18
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω