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75 Ohm and 120 Ohm E1 connection

  • This topic has 1 reply, 1 voice, and was last updated 23 years ago by Mark Walsh.
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  • 18th December 2001 at 10:56 #20881
    Scott
    Guest

    Hi
    Does anybody know what will happen if we link 75 Ohm unbalanced E1 to the gateway which need 120 Ohm Balanced E1 ?

    19th December 2001 at 11:35 #20882
    Mark Walsh
    Guest

    It probably won’t work. You can get 75/120 baluns (transformers) that do the impedance matching and also have twisted-pair connections on one side and co-ax (eg BNC) on the other.

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