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Description of Parts
Ethernet AUI
The 15-pin Ethernet attachment unit interface (AUI) connector, shown in Figure 3, provides a
standard Ethernet IEEE/802.3 connection between a CSC-MEC card port and the external Ethernet
network. An Ethernet transceiver, which is required for use with this connector, provides the
connection to thick-wire, thin-wire, twisted-pair, and other Ethernet media. The Ethernet transceiver
either plugs directly into the 15-pin connector or is attached with an AUI interface cable. The pinouts
for the AUI cable and the 15-pin connector are listed in Table 2.
Figure 3
Table 2
Pin
3
10
11
5
12
4
7
15
8
2
9
1
6
13
14
Shell
1. Not used.
4 Installing the CSC-MEC and CSC-C2MEC Multiport Ethernet Controller Cards
15-Pin AUI Ethernet Connector Applique
Ethernet (AUI) Pinout
Circuit
Description
DO-A
Data Out Circuit A
DO-B
Data Out Circuit B
DO-S
Data Out Circuit Shield
DI-A
Data In Circuit A
DI-B
Data In Circuit B
DI-S
Data In Circuit Shield
CO-A
Control Out Circuit A
CO-B
Control Out Circuit B
CO-S
Control Out Circuit Shield
CI-A
Control In Circuit A
CI-B
Control In Circuit B
CI-S
Control In Circuit Shield
VC
Voltage Common
VP
Voltage Plus
1
VS
Voltage Shield
PG
Protective Ground
1
1
1
1
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