ND-100 Bus: Difference between revisions

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==Expansion==
==Expansion==
[[NORD-100]] card crates can be linked together via bus expander (BEX) modules. The number of crates to be lined together is set to a theoretical maximum of 8 crates.  
[[NORD-100]] card crates can be linked together via bus expander (BEX) modules. The number of crates to be lined together is set to a theoretical maximum of 8 crates.  
==Reference==
==References==
{{ND-doc|06.016.01}}
*{{ND-doc|06.016.01}}
*{{ND-doc|06.017.02}}
*{{ND-doc|06.026.1}}, Chapter 4


[[Category:ND-100 hardware]]
[[Category:ND-100 hardware]]

Revision as of 21:38, 20 December 2011

In the NORD-100 computer system all hardware modules are connected together via a common bus, the NORD-100 bus. All communication between NORD-100 modules is provided by this bus, except CPU, MMS and Cache communication. Therefore, the NORD-100 bus is general purpose, to allow all classes of NORD-100 modules simply to be "plugged" into the system.

Physical arrangement

The NORD-100 bus is available as a printed (card) backplane. The backplane is available in two versions containing either 12 or 21 positions for module connections. The two versions are otherwise equal.

Signals

Each NORD-100 bus backplane position contains a total of 96 lines (power and ground lines included).

Expansion

NORD-100 card crates can be linked together via bus expander (BEX) modules. The number of crates to be lined together is set to a theoretical maximum of 8 crates.

References