19-06-2012, 03:53 PM
Practical Training Presentation INDIAN RAILWAY
[attachment=24825]
Optical Fiber Communication
Optical fiber communication is provided for the following communication needs:-
Control Communication with emergency communication
Administrative voice and data communication.
Both for control and long haul communication backbone for mobile train radio communication.
When we use optical fiber then we have to the following margins:-
Capacity Of Fibre Optic System.
For Control Communication application, SDH System having capacity of STM-1 shall be used. Generally, one E1 shall be used for various control applications.
For Long Haul Communication, SDH System with capacity of STM-4 or above shall be used.
Microwave Communication
Objective:- To transmit information from one place to another without interruption, and clear reproduction at the receiver.
IVRS PC
IVRS PC is user friendly due to it’s following features:-
Setting of ring.
Selection of operation on tone/pulse.
Running of special messages.
Route Relay Interlocking
Signals may not be operated to permit conflicting train movements.
Once a route is set, all switches and other movable appliances in the route are locked.
[attachment=24825]
Optical Fiber Communication
Optical fiber communication is provided for the following communication needs:-
Control Communication with emergency communication
Administrative voice and data communication.
Both for control and long haul communication backbone for mobile train radio communication.
When we use optical fiber then we have to the following margins:-
Capacity Of Fibre Optic System.
For Control Communication application, SDH System having capacity of STM-1 shall be used. Generally, one E1 shall be used for various control applications.
For Long Haul Communication, SDH System with capacity of STM-4 or above shall be used.
Microwave Communication
Objective:- To transmit information from one place to another without interruption, and clear reproduction at the receiver.
IVRS PC
IVRS PC is user friendly due to it’s following features:-
Setting of ring.
Selection of operation on tone/pulse.
Running of special messages.
Route Relay Interlocking
Signals may not be operated to permit conflicting train movements.
Once a route is set, all switches and other movable appliances in the route are locked.