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. | ||
== | ==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
- Norsk Data Document ND–06.016.01 ND-100 INPUT/OUTPUT SYSTEM
- Norsk Data Document ND–06.017.02 ND-100 BACKPLANE
- Norsk Data Document ND–06.026.1 ND-110 Functional Description , Chapter 4