Appendix C: Ethernet Hardware Installation - Silicon Graphics IRIS Series Terminal Manual

Appendix C: Ethernet Hardware Installation

C.1 Ethernet Hardware
There are six components necessary to connect a VAX 11/780 or 11/750 to an
Ethernet local area network.
• The Ethernet Controller is a UNIBUS
VAX-11/780 or VAX-l1/750 to an Ethernet local area network.
• 1 Ethernet Transciever taps the Ethernet coaxial cable for a connection
to a network node.
• 1 75-foot, 15-conductor drop cable connects the Cabinet to an
Ethernet transceiver.
• 1 Flat cable connects the Ethernet Controller to the drop cable.
• 1 slide lock connects the flat cable to the drop cable.
• 1 panel connector (VAX-11/750 only) holds the Ethernet Controller
in place.
C.2 Hardware Installation
The Ethernet Controller is a UNIBUS-hex board that contains all of the data
communications controller logic necessary to interface a VAX-11/780 or VAX-
11/750 minicomputer to an Ethernet local area network. It is installed in the
UNIBUS subsystem on the host computer. The UNIBUS subsystem connects
peripheral devices to a VAX-11 family of minicomputers. The procedures for
installing the Ethernet Controller in the UNIBUS subsystem differ slightly
between the VAX-11/780 and the VAX-11/750.
1. Inspect the Ethernet Controller for damage.
2. Check that the switches on the Ethernet Controller are set to:
1. UNIBUS is a trademark of Digital Equipment Corporation.
Version 1.3
-hex board for interfacing a
1