Data General AViiON 5500 Series, Установка, расширение и обслуживание

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Integrated I/O connectors and signals
A-8
014–002250–01
Table A–3 Parallel printer connector pin signals
Signal Pin
14 Unused
15 – Fault (error)
16 – Reset
17 Unused
18–25 Ground
LAN connector
The rear panel of every AViiON 5500 and 550 series computer
contains an external connector for the integrated Ethernet LAN.
Some systems include one or two expansion LAN controller boards
with a rear panel bus connector.
An attachment unit interface (AUI) cable connects the computer to
an external medium attachment unit (MAU). The MAU contains
the Ethernet transceiver and the medium–dependent interface
(MDI) for connection to the physical network. The MAU provides
electrical isolation between the AUI cable and the physical network.
You can attach the Ethernet interface via AUI cable to any one of
the following types of external 10 MHz MAUs:
D
10BASE5 (Ethernet)
D
10BASE2 (Cheapernet or Thin Ethernet)
D
10BROAD36 (Ethernet over CATV)
D
10BASET (Ethernet over twisted pair)
D
any 10–MHz, AUI–compatible MAU or MAU–like device that does
not require the Control Out signal specified in the AUI definition.
The computer’s rear panel LAN ports (integrated and expansion)
contain a 15–pin, female D–connector. Figure A–4 illustrates the
pin numbers for the connector.
15
9
8
1
female connector
Figure A–4 LAN connector pin numbering