20th February 2016 at 19:31
#51547

ayazkhan

Guest

Simple way checking of E1 Vs TRX Mapping is E1 is 2Mbps links which is divided into 64KbpsX32 TSs,& each 64Kbps TS further divided into 16KbpsX4 nibbles,

so we can assume that 2Mbps link consist of =4*32=128 nibbles

While a TRX consist of 8 TS & each TS can be mapped one one Abis nibble.

so if we assume that 03 Abis TS are reserved for OM & Signalling purposes, then we have available Abis TSs=29 & nibbles are 29*4=116.

hence Max Possible TRXs on Abis = 116/8=14.5, i forgot how much TS required for RSLs 🙁