[pramod kumar gupta]

why we give -48v dc in all nokia BTS

[pramod kumar gupta]

any one please tell me
different part of NOKIA BTS and THEIRE function
also how much rype of card used in NOKIA BTS and theire function

[GEO]

Hello,
Let me know about DAC value that we set on nokia BTS, How it calculate, is there any importance for the DAC value wether bts down if we give wrong DAC value.

[Om Prakash Gupta]

Hello, i am o.p Gupta. i am working on telecom company.I want to know about nokia BTS. plz give informatin

[ajay gupta]

Hello sir

i want to know about all types
of nokia BTS AND all internal cards
it consist

ajay, noida

[Aamir]

Hi,iam a telecom engineer working in Averox telecom company Pakistan.we r working on nokia Bts.Cam some one tell me abt all the cards(BBF2,RRI etc).all there functions.plz do me a favour.i shall be thankful to u.

[patrick]

every BTS are the same structure. NOKIA, Nortel, Alcatel, …

antenna = copler = tx => radio bcf => transmission => BSC…

For NOKIA BTS ultrasite:

LOOK at this:
G like GSM
D like DCS

copler:

DVGA => GSM
DVDC => DCS

Connection BYPASS or not:
passive card for 1 or more TRX. You lose 3db if you connected by WCGA or WCDA.
M2HA => DCS
M2LA => GSM
WCDA => DCS
WCGA => GSM

TX:(power part)

TSDA => DCS no EDGE
TSDB => DCS EDGE

TSGA => GSM no EDGE
TSGB => GSM EDGE

BB2xx card is intelligent part of TRX.

BB2A => No EDGE only compatible with TSGA and TSGB
BB2E => EDGE (first generation of BB2xx EDGE) compatible with ALL, TX A and B
BB2F => EDGE

Radio:

BOIA => BCF, MMI connection with BTS manager, Hubmanager and HWmanager.

Transmission

FXC ET1/T1 => in/out MIC 2Mbit signal.
RRI => flexihopper I like “integrated” same function like FIU 19″

[Ewan]

hello Fren, i’m from INA. Please tell me how to use Path Loss and Brief description how to make a cross connection using Nokia Hop Manager

[pramod kumar gupta]

plz solve my querry

1: the power consumption by the BTS
2: Heat dissipation of Trx card

[SUNIL]

DEAR PRAMOD GUPTA,
1 POWER SUPPLY- GIVE POWER TO BTS
2.BASE BAND CARD(BB2F)-CONVERT ALOLOG TO DIGITAL SINGAL
3.BOIA CARD– ALL THE DATA WILL STORE IN IT
4.TRANSMISSION CARD- IT IS FOR TRANSIMMION PERPOSE EITHER IT IS RRI ,E1T1,E1 OR OTHER ELSE
5.TRX-IT IS THE CARDS WHICH HANDLE THE DIFFRENT CALLS, RECEIVER , TRANSMITTING
6.MULTICOPLIER(M2LA)- IT DESIDE THE CALL TO WHICH TRX MEANS GIVING PATH TO PARTICULAR TRX
7.WCDA-IT COMBINE THE SIGNAL TO REDUCE THE POWER LOSS
8.DVJA-IT IS THE DUPLER ,WHICH RECEIVE AND TRANSMIT THE CALLS

[SUNIL]

DEAR GEO,

DAC VALUE IS ACTULLY SET , BECASUE THE DATE WILL TRANSFER IN 13MHZ , THROUGH BSC OR MSC , IT IS PRE SET FROM MSC THOUGH 2M EVEN , BUT IF IT IS BREAK FROM MSC THAT CASE, IT IS SET, NO PROBLEM IF IT IS LOW OR HIGH , SET FROM FREQUENCY COUNTER, INCEEASE THE DAC VALUE , WHEN FQEN COUN. SHOW 13 MHZ APPOX VALUE , SET IT PERMENATELY

[suresh]

hai shaleem
i am workin as installation engineer for NOKIA & Ericsson BTS… Plz give the details of DAC value in Nokia BTS…

[suresh]

hai
i have confusion about E1/T1 and RRI Card plz explain me…

[SUNIL]

Dear Suresh,

e1t1 cards used for the dedicated e1, means take from krown or fiu, in this u not instrol any microwave, not requeid any frequency etc, but in rri card u have to instrol m/w , in this u have to gave power , frequency etc.
in e1t1 4 interface & in rri 2 interface ,in rri u have to take upto 16 e1 in side then bypass it,

[Asvin Rathi]

i m working on nokia TRX cards repairing .
these cards are used in Nokia BTS.
if anyone need help please feel free to contact.

[Author]

Posts