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This is bcoz we need -48V for Gsm BTS, -48 DC is used to control Fluctuation
So the main function of this is
1) To convert AC to DC
2) To control overloading
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∙ 11y ago
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Why use power interface unit in telecom?
it is a unit in a BTS i.e. base transreciever system..these bts are installed with towers that are used for mobile communication. The piu consists of a power plant and battery bank. power plant has rectifier to convert ac to dc and battery back up is used in case of power failure.
Why is the gsm 900 better than gsm 1800 and gsm 1900?
As the frequency increase its penetration power decreases.The signal travels a lesser distance.Hence for a perticular area more no of towers need to be erected in 1800/1900 than in 900MHZ for full coverage...Hence vodafone( 1800MHZ) has more towers per unit area than Idea Cellular ( 1800+900) ..... Band of 900 is from 890-915( uplink) 935-960Mhz( downlink).... Band of 1800 is from 1710-1785(uplink) and 1805-1880MHZ(Downlink).... Same property is followed here.....The uplink is lower ( MOBILE -BTS) than the downlink frequency (BTS-MOBILE)...so that this may help the uplink signal to travel futher without consuming much power...BTS due to its increased power ,has higher frequency to tavel the same distance....
What is the radio frequency used for linking bts to bscsmsc?
radio frequency for link to bts to bscs/msc
What is single phase Controlled rectifier?
such a control rectifier that control or rectifier single phase. for that purpose we used SCR that is called single phase controlled rectifier.
What happens when one of the diodes is removed from the bridge rectifier?
Nothing will happen to the diode but that rectifier effectively becomes a half-wave rectifier.
How many number access by the one GSM BTS?
Typically one GSM BTS hardware can cover a few numbers. Also, some numbers can also be covered by more than one GSM BTS. Since one cell is covered by exactly one BTS, the cell id uniquely identified the concrete BTS.
What is DAC value in gsm system?
BTS internal clock value is known as DAC value.
What are lapd and lapdm gsm?
link acess protocol for the D channel is used in the radio link between bts and ms
How many bts can be connected to a single bsc?
Up to hundreds (Wikipedia). There are technical limits, but the GSM standard doesn't say something about a maximum.
Why use power interface unit in telecom?
it is a unit in a BTS i.e. base transreciever system..these bts are installed with towers that are used for mobile communication. The piu consists of a power plant and battery bank. power plant has rectifier to convert ac to dc and battery back up is used in case of power failure.
What is h difference between 2g bts and 3g bts?
3g BTS is greater than 2g bts. and it is with new technologies.
Difference between indoor bts and outdoor bts?
Indoor BTS: It is placed in a shelter Air-condition is must Very sensitive Outdoor BTS: No shelter required Air-condition is not a must Not very sensitive comparing to indoor bts
Can a rectifier work on DC?
Well, yes. But it isn't much needed as DC is already DC.
What is the power range of BTS?
GSM900 transmitted power from BTS: 39dBm GSM1800 transmitted power from BTS: 36dBm
What converts an alternating current to diredt current?
Alternating Current can be converted to Direct Current by using a DC Converter which contain a Bridge Circuit , a Capacitor and if needed a Transformer.CommentA 'DC converter' is normally called a rectifier.
How much distance between BTS to BTS?
typically 2km
Which rectifier has good efficiency?
bridge rectifier is the best rectifier.
