NR SSI8003-52
Timing Constraints on Interlocking Data Complexity
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| Organization: | NR |
| Publication Date: | 5 September 2015 |
| Status: | active |
| Page Count: | 25 |
scope:
Introduction
Unlike a Route Relay Interlocking which can be expanded to include however many relays are required to carry out a particular task, each Solid State Interlocking has a finite capacity which cannot be exceeded. When the capacity of a single SSI Central Interlocking is exceeded, the controlled area shall be subdivided between a number of Interlockings. There are three major limitations on the capacity of a Central Interlocking:
• The number of TFMs which can be connected.
• The memory capacity of the MPMs & PPMs.
• The processing speed of the MPMs & PPMs.
Document History
September 3, 2022
Timing Constraints on Interlocking Data Complexity
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NR SSI8003-52
September 5, 2015
Timing Constraints on Interlocking Data Complexity
Introduction
Unlike a Route Relay Interlocking which can be expanded to include however many relays are required to carry out a particular task, each Solid State Interlocking has a finite capacity...
April 1, 2008
SSI Data Preparation - Timing Constraints on Interlocking Data Complexity (aka RT/SSI/8003-52)
Introduction
Unlike a Route Relay Interlocking which can be expanded to include however many relays are required to carry out a particular task, each Solid State Interlocking has a finite capacity...