E1 cross cable Characteristics

[hyortiz01]

Hello:

I would like to know the maximum distance of  an E1 cross cable (UTP)? is it the same of an ethernet copper cable of 100m? where could I find this information? I have been looking on internet, but I haven't found anything, thanks a lot.

[balaji.bandi · Accepted solution]

E1 cable from Telephone exchange to End device maximum i achieved around 300meters, again depends on end device capabilities.

[Nithin Eluvathingal]

Better to Check with the provider. 

[Nithin Eluvathingal]

If the distance more have a look on below product

https://www.fiberplex.com/products/foi-5402_e1-fiber-converter.html

[pieterh]

found this link that says:

E1 is a differential communications interface using either two pairs (TX and RX) connected through a single RJ-48C connector (also frequently written as RJ48, RJ-48 or RJ48c and also often incorrectly called RJ-45 or RJ45 - it is an RJ connector with 8 contacts assigned according to specification RJ-48C) or using two coaxial connections (TX and RX) via two BNC connectors. To enable reliable transmission and reception over 1000s of metres of cable between customer premises and telephone exchanges, the data is encoded using HDB3 to produce a bipolar signal with the required characteristics. Note that timing information (i.e. the bit clock) is encoded within the signal to enable the receiver to recover a clock and correctly decode the received data.

further information may be found searching for "G.703"

I think a maximum cable length is not specified in this standard, as long as the signal conforms to signal quality and timing specifications

The applicable cable length is for further study (values between 3 m and 1 000 m have been proposed; contributions are invited).