Switch: Difference between revisions

Latest revision as of 08:48, 28 July 2011

Visual Representation

Simple switches are represented as Y-shaped tracks with a central button. There is a light behind each of the three branches that indicates various states of the switch. Next to the switch are two circular lights that indicate the locking status of the switch.

Operation

Normally, the position of a switch is not visible. To quickly see the position of a switch, press the central button on the switch. The only two of the three branches will illuminate, thereby indicating its position.

Switches can be manually operated by pressing the central button together with the Throw Switch Button (WGT). When the switch motor runs the switch from one position to the other, the switch branch lights will blink to indicate what the position will soon be. Once the switch has completely run into its end position, the lights will once again extinguish.

Locking Indicators

Switches can be locked for one of two reasons: locked as part of a route or as flanking protection, or, locked manually.

Route Lock

When a switch is part of a route or provides flanking protection, a white light becomes lit next to the switch. This indicates that the interlocking system is preventing the switch from being thrown into another position, and is one of the factors that prevents conflicting routes.

Manual Lock

Sometimes it is necessary to manually lock a switch. This can happen, for instance, when engineering work is occurring in the area and it would otherwise be possible to forget that traffic cannot enter. Locking a switch manually is done using the button of the switch being locked, together with the Lock Switch Button (WSpT). Unlocking a switch is achieved by pressing the switch button together with the Unlock Switch Button (WESpT). When a switch is manually locked, a red light next to the switch becomes lit.

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+{{EnglishNav}}
 ==Visual Representation==
-Simple switches are represented as Y-shaped tracks with a central button. [[image:switch_left_down30.png|thumb|100px|left]]
+[[image:switch_left_down30.png|thumb|100px|left]]
+Simple switches are represented as Y-shaped tracks with a central button. There is a light behind each of the three branches that
+indicates various states of the switch. Next to the switch are two circular lights that indicate the locking status of the switch.
+==Operation==
+Normally, the position of a switch is not visible. To quickly see the position of a switch, press the central button on the switch. The only two of the three branches will illuminate, thereby indicating its position.
+Switches can be manually operated by pressing the central button together with the [[Throw Switch Button]] (WGT). When the switch motor runs the switch from one position to the other, the switch branch lights will blink to indicate what the position will soon be. Once the switch has completely run into its end position, the lights will once again extinguish.
+==Locking Indicators==
+Switches can be locked for one of two reasons: locked as part of a route or as flanking protection, or, locked manually.
+===Route Lock===
+When a switch is part of a route or provides flanking protection, a white light becomes lit next to the switch. This indicates that the interlocking system is preventing the switch from being thrown into another position, and is one of the factors that prevents conflicting routes.
+===Manual Lock===
+Sometimes it is necessary to manually lock a switch. This can happen, for instance, when engineering work is occurring in the area and it would otherwise be possible to forget that traffic cannot enter. Locking a switch manually is done using the button of the switch being locked, together with the [[Lock Switch Button]] (WSpT). Unlocking a switch is achieved by pressing the switch button together with the [[Unlock Switch Button]] (WESpT). When a switch is manually locked, a red light next to the switch becomes lit.