It basicly refers to the type of layer 1 that an E1 signal can terminate or
be carried on.
Balanced E1 is usually carried on twisted pair and has an impedance of 120
ohms.
Unbalance E1 is usually carried on coax and has an impedance of 75 ohms.
A "Balun" is a device that converts this signal either way from one to the
other. Unbalanced E1 interfaces have two BNC connectors just like a T3
interface.
Hope this helps
Tony M.
#6172
----- Original Message -----
From: Valeri Marinski
To:
Sent: Friday, June 08, 2001 1:34 AM
Subject: explanation about ballanced and unballanced PRIs [7:7690]
> Dear Group
> could someone please point me to the right link or just explain the
> difference
> between balanced and unbalanced PRIs.
> Thank you in advance.
>
> Valeri
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=7732&t=7690
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