System Configuration
1-3
System Configuration
1-3-1 Single-level Systems
Coaxial System
Computer
NSB
Optical System
CPU Rack
APS
SYSMAC LINK Unit
CPU Unit
Backup Power Supply
4
Up to 62 nodes (including all PCs and, in coaxial systems, computers) can be
connected in a SYSMAC LINK Network via SYSMAC LINK Units or Network
Service Boards. One of the Units in the network will function as the polling
unit and the remainder will be polled units. The polling unit manages the Sys-
tem communications during and after configuration.
The following diagrams show the general configuration of Single-level SYS-
MAC LINK Systems connected with coaxial and optical fiber cables. The Sys-
tems are considered single-level because each PC has only one SYSMAC
LINK Units mounted to it.
The SSS/CVSS connection is not a required part of the System. It is shown
here because of its usefulness in monitoring and controlling not only the
operation of the SYSMAC LINK System itself, but the general operation of all
the PCs connected in the System.
The abbreviation NSB indicates a SYSMAC LINK Network Service Board.
CPU Rack
SYSMAC LINK Unit
CPU Unit
Note Terminators must be connected to the Units on the ends of the network.
The abbreviation APS indicates an Auxiliary Power Supply Unit.
CPU Rack
APS
SYSMAC LINK Unit
CPU Unit
CPU Rack
SYSMAC LINK Unit
CPU Unit
CPU Rack
APS
SYSMAC LINK Unit
CPU Unit
Section 1-3
CPU Rack
SYSMAC LINK Unit
CPU Unit
SSS/
CVSS
CPU Rack
APS
SYSMAC LINK Unit
CPU Unit
SSS/
CVSS