75 Ohm and 120 Ohm E1 connection This topic has 1 reply, 1 voice, and was last updated 20 years, 7 months ago by Mark Walsh. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 18th December 2001 at 10:56 #20881 Reply ScottGuest 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 Reply Mark WalshGuest 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. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) Reply To: 75 Ohm and 120 Ohm E1 connection Your information: Name (required): Mail (will not be published) (required): You may use these <abbr title="HyperText Markup Language">HTML</abbr> tags and attributes: <a href="" title="" rel="" target=""> <blockquote cite=""> <code> <pre class=""> <em> <strong> <del datetime="" cite=""> <ins datetime="" cite=""> <ul> <ol start=""> <li> <img src="" border="" alt="" height="" width=""> Submit