in 1stm how much bandwidth
Let E1 and E2 be two even numbers. Then (E1+1)(E2+1) will be the product of two odd numbers. We have E1*E2 +E2+E1+1. Now when we add or multiply even numbers, we get even numbers and we add 1, it's odd.
5.7*101 or 5.7 E1
1 has only one divisor. It's divisor is the number one.
1 of them.
STM-0= 21 E1 lines STM-1=(64x1) - 1 = 63 E1 lines STM-4=(64x4) - 4 = 252 E1 lines STM-16=(64x16) - 16 = 1008 E1 lines STM-64=(64x64) - 64 = 4032 E1 lines and so on
There are 63 e1's in sdh STM-1 = 63 x E1; STM-4 = 63 x 4 E1; STM-16 = 63 x 16 E1; STM-64 = 63 x 64 E1.
The Data rate of one E1 is 2048 bps which have 32 voice channels.And STM is a multiplexing of E1's in SONET we say STM-4 is equal to OC-12 both have same data rates i.e. 622.08 Mbps it support 269 E1's. STM-1 or OC-3 supports 67 E1's data rate (155.52 Mbps).
in 1stm how much bandwidth
e1 is a standard unit used to measure the amount of data flow. 1 e1 refers to 2mbps speed of data flow.
Let E1 and E2 be two even numbers. Then (E1+1)(E2+1) will be the product of two odd numbers. We have E1*E2 +E2+E1+1. Now when we add or multiply even numbers, we get even numbers and we add 1, it's odd.
STM-1 stands for Synchronous Transport Module level-1....:)
http://news.bbc.co.uk/1/hi/in_pictures/7856513.stm
in GE interface the STM-1 can carry 155 Mbps but on SDH it will carry 142 Mbps
It's not.-- The E1 line rate is 2.048 Mb/s.-- The data rate of 63 E1s, simply time multiplexed, would be 63 x 2.048 = 129.024 Mb/s-- 64 E1s may be multiplexed into a single E4 stream, at a rate of 139.264 Mb/s.-- The STM1 data rate is 155.52 Mb/s. Any combination of data streams totalingroughly that rate, including as many as perhaps 75 E1s, could be packaged fortransport on an STM1 facility.
Synchronous Transport Module (STM) currently has levels 1, 4, 16, 64, 256 and 1024 where each level corresponds to a specific bit rate. The STM frame is considered as the basic transmission format for the Synchronous Digital Hierarchy (SDH) technology. These STM frames are byte-oriented arranged in a row and column manner.
The E1 has a greater line capacity. E1 is the European standard and runs at 2.084 Mbps. The American T-1 standard runs at a capacity of 1.544 Mbps.