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1 E1 in erlang

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Manzoor Ahmed - 28th March 2017  (06:34 GMT)

Hi Pix
How many calls can be establish in the same time in 1xE1 in full rate Mode?

atheer - 17th December 2015  (07:10 GMT)

hi all;
just i need to adding my information.

1E1 have 32 TS..2 TS decrease will be get 30TS

now we can say we have 30 TS will be used for BTS ,
every Trx take 2 TS from PCM + 0.5 TS for signaling to this TRX
the summation 2.5 TS related to 1Trx in BTS

now must do calculation how many TRX can carry for 1STM
30/2.5= 12 Trx..
for FR
12*8=96 TS
assume every 4 TRx per sector that mean 2 TS will be decrease for every sector (1BCCH+1SDCCH).
4*8-2=30 TS from Btable 20Erli ber sector

for three sector 60 Erl.

for HR carry double

Many thanks for all..


HAMID - 15th December 2015  (05:27 GMT)

IF 30 SLOT OF ONE E1 is busy for one hour, how we can calculate earl age?
plz answer me step by step.

pix - 17th September 2010  (08:06 GMT)


how many timeslots available in one E1 ?
32 TS
how many can be used to carry traffic ?
let's say 26 TS available for traffic
and let's say you are talking about the A interface, where there is only 1 channel per TS (1 channel = 64kb/s)

There you go:
BHT = "unknown"
lines = 27
blocking % = 0.5% (0.005)

click on "calc"
BHT = 16.55 erlang


N - 17th September 2010  (06:44 GMT)

any one can show how to get 1E1 = 16.6 erl?

A qodar - 5th August 2010  (06:51 GMT)

how many pcm to support trafic of 3 erlang

vikas - 2nd August 2010  (15:45 GMT)

hiii pix
how u calculate 16.6 erlang??

Tanuj - 27th July 2010  (08:10 GMT)

Yes we use 16 and 25 TS for signaling when giving multiple E1 to a site e.g for implementing EDGE

ARVIND - 22nd July 2010  (12:06 GMT)



Bijoy - 5th April 2010  (07:09 GMT)

Hi Amit
1 E1 can support upto 15 TRX in TDM mode.

Considering a site with 5+5+5 conf,with 35 TCH per cell,you can have an Equipped Traffic of 26.4 *3= 80 Erl approx.

If you use HDLC,this figure will be higher.


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