06-02-2012, 04:29 PM
Training report On Bharat sanchar nigam ltd
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AN Introduction Of Bsnl
Type
Communication Service Provider
Availability
Countrywide except Delhi & Mumbai
Owner
The Government of India
Founded
19th century, incorporated 2000
exchang
Equipment which effects interconnections of telephone is known as switching equipments.
The switching centre, which houses the terminating & switching equipments is known as telephone exchange.
Types of exchanges:
E10B (Electronics 10 Binary)
OCB (Optical cable B)
5ESS (5000, Electronic sub-subscriber)
Power station
The main parts of Power station is:
.Batteries
.UPS (uninterrupted power supply)
.Charging –Discharging unit
.Inverter – Converter unit
