- This topic has 158 replies, 1 voice, and was last updated 13 years, 9 months ago by patrick.fr.
30th September 2006 at 14:13 #42528pramod kumar guptaGuest
why we give -48v dc in all nokia BTS30th September 2006 at 14:26 #42529pramod kumar guptaGuest
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 function1st October 2006 at 13:08 #42530GEOGuest
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.3rd October 2006 at 10:54 #42531Om Prakash GuptaGuest
Hello, i am o.p Gupta. i am working on telecom company.I want to know about nokia BTS. plz give informatin4th October 2006 at 16:23 #42532ajay guptaGuest
i want to know about all types
of nokia BTS AND all internal cards
ajay, noida12th October 2006 at 04:33 #42533AamirGuest
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.15th October 2006 at 07:04 #42534patrickGuest
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
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
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
BOIA => BCF, MMI connection with BTS manager, Hubmanager and HWmanager.
FXC ET1/T1 => in/out MIC 2Mbit signal.
RRI => flexihopper I like “integrated” same function like FIU 19″31st October 2006 at 01:47 #42535EwanGuest
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 Manager1st November 2006 at 07:00 #42536pramod kumar guptaGuest
plz solve my querry
1: the power consumption by the BTS
2: Heat dissipation of Trx card4th November 2006 at 06:04 #42537SUNILGuest
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 CALLS4th November 2006 at 06:16 #42538SUNILGuest
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 PERMENATELY5th November 2006 at 08:13 #42539sureshGuest
i am workin as installation engineer for NOKIA & Ericsson BTS… Plz give the details of DAC value in Nokia BTS…5th November 2006 at 08:17 #42540sureshGuest
i have confusion about E1/T1 and RRI Card plz explain me…6th November 2006 at 05:48 #42541SUNILGuest
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,14th November 2006 at 06:56 #42542Asvin RathiGuest
i m working on nokia TRX cards repairing .
these cards are used in Nokia BTS.
if anyone need help please feel free to contact.