Ultra BTS can support max. of 12 TRx (trancievers), while Flexi can support max. of 24 TRx.
Ultrea has drawback that it has all Pin connections on back side, if any of the Pin of a particular slot is damaged then that slot is useless, while in flexi all connections are on front side so it is easy to install every equipment.
As an operator wants to cover maximum area he will use flexi.
you can say ultra a bts of old times.
so, it is the difference my dear.
however, one TRx card supports 8 time slots i.e. max of 8 users, but not practically. It will support max. of 7 callers. Capacity in terms of users can be increased using Half rate, i.e. A TRx will support approximately 14-15 users at half rate transmission, half rate is used during bysy hours, i.e. on one time slot 2 user will send their data/speech, with a half rate of 5.6 kbps, but at half rate voice quality is not very good. Simply one time slot will be assigned to two users in Half rate. So both of them(Ultra & Flexi) support equal no. of users if having equal no. of TRx.
the basic difference between nokia ultra&flexibts is that ultra can support only12 trx but flexi bts can support 24 trx. i
FIU and RRI both are connect to ODU of microwave antenna. The difference is RRI is used in ultra BTS where as FIU is used in Flexi BTS.
Transmission between BTS and BSC.FIFA card contain only TNC male connector.
3g BTS is greater than 2g bts. and it is with new technologies.
ESMA stands for flexi edge system moduleFUNCTION OF ESMA1.power distribution2.Alarm handling3.Terminate the Abis interface
full load on one bts site 35 amp.
You are right about Ultra if and only if you are talking about one cabinet, but regarding Flexi we don't say it can support up to 24 TRS. Plus, Ultrasite Cabinet can support up to 12 TRX. So we measure by cabinet in Ultrasite and we measure by ESMA/ESEA in Flexi. ESMA can manage only up to 12 TRX where it contains only 6 bus and power ports. ESEA Can support up to 24 TRX. But for your info, Flexi modules can be installed in Cabinet, 19" Rack, Stack, Pole and Wall mount depends on the design.
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
600 WATT
typically 2km
fifa is a transmission module with support for 16 E1 channels, it receives DC power from BTS through its backplane connectors; power consumption of a fully equipped FIFA is less than 76 w.
There are huge types of BTSs. From 2G to 4G,various products using various methods. Commissioning is a procedure that add/modify different settings of BTS to provide access to its users. its done by Using PC with Access software's. either serial port or Ethernet port of PC used to gain access. But in BTS side it can be different type of connector. Procedure is different with each product.