Siemens EH.75M.11. Especificaciones descargar pdf (Pagina 135)

T400 Controller Facilities Manual

667/EB/20200/000 Page 13-2 Issue 9

13.2 REPEAT PULSES

The Type 400 Controller may be linked to other traffic controllers so that a pulse

which occurs, or a pulse which is created by a condition occurring, in one controller

may be repeated to the other. The function of the pulse when received will depend on

the method of control of the intersection.

One function of the facility is to maintain traffic flow through closely associated

intersections. When a certain phase gains ROW, a pulse is transmitted to the linked

controller to demand a phase along the same route.

Special conditioning is used to provide an output from the controller under pre-defined

conditions, e.g. during Red/amber or amber leaving of a particular phase.

13.3 OTU LINKING

The Type 400 Controller may be linked to other controllers in a UTC scheme when it

is required to share an outstation transmission unit (OTU) between more than one

controller. In this case the link will only be for connection between the OTU and the

other controllers. The operation of the controller will have no effect on the link.

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Siemens EH.75M.11. Especificaciones Pagina 135