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This page displays all 「FI」 in main group B61L21/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Station blocking between signal boxes in one yard | HB | CC | 5H161 | |
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.Mechanical locking and release of the route; Repeat locks; Coupling of semaphores | HB | CC | 5H161 | |
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.Electrical locking and release of the route; Electrical repeat locks | HB | CC | 5H161 | |
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.Vehicle-on-line indication; Monitoring locking and release of the route | HB | CC | 5H161 | |
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.Order transmission and reception arrangements for giving or withholding permission | HB | CC | 5H161 | |
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.Arrangements for trains which are closely following one another | HB | CC | 5H161 | |