Vlc Interface Connector - Data General AViiON Series Customer Documentation

External Device Connector Pin Assignments

VLC Interface Connector

The VLC LAN controller interface provides a 15-pin D connector for an AUI cable.
The AUI cable connects the computer to an external Media Attachment Unit (MAU).
The MAU contains the Ethernet transceiver and the Media Dependent Interface
(MDI) for connection to the physical network. Figure C–8 shows the signals and pin
numbers for these connectors.
Pin 9
Pin 1
Pin 8
Pin 15
VLC LAN connector (female)
C-12
Pin Signal
1 Ground
2 Collision +
3 Transmit +
4 Ground
5 Receive +
6 Ground
7 No Connect
8 Ground
9 Collision –
10 Transmit –
11 Ground
12 Receive –
13 +12 Volts
14 Ground
15 No Connect
The connector shell acts as a protective ground
Figure C–8 VLC Connector Signals
Circuit Name
CI–S (Control In circuit shield)
CI–A (Control In circuit A)
DO–A (Data Out circuit A)
DI–S (Data In circuit shield)
DI–A (Data In circuit A)
VC (Voltage common)
CO–A (Control Out circuit A)
CO–S (Control Out circuit shield)
CI–B (Control In circuit B)
DO–B (Data Out circuit B)
DO–S (Data Out circuit shield)
DI–B (Data In circuit B)
VP (Voltage plus)
VS (Voltage shield)
CO–B (Control Out circuit B)
014–001867