<div class="MsoNormal">Mohammad,</div> <div class="MsoNormal"><br> I am guessing you are talking about on a router. If so, you RJ-45s must be configured as a T1 crossover. Wiring pattern is as follows: <br> <br> Side A Side B<br> Pin1 - Pin4<br> Pin2 - Pin5<br> Pin3 - Pin3<br> Pin4 - Pin1<br> Pin5 - Pin2<br> Pin6 - Pin6<br> Pin7 - Pin7<br> Pin8 - Pin8<br> <br> ...or typically side A: org/wt, org, grn/wt, blu, blu/wt, grn, brn/wt, brn<br> side B: blu, blu/wt, grn/wt, org/wt. org, grn, brn/wt, brn<br> <br> Make sure you adjust your cable length. If you are
using CSUs, the crossover will be placed between the CSUs on the "network" port. The port on the CSU for router connection depends on the brand; usually labels D&I, Terminal or AUX. The router to CSU cable would be straight-thru because the CSU is DC. Once again, if using a CSU verify the terminal cable length on CSU reflects your cable distance to prevent ruining T1 modules. I am guessing you have the router side programming covered but, write back if you need further assistance.<br> <br> - Peter</div> <br><br><b><i>mohammad mirzaee <hezare3@yahoo.com></i></b> wrote:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> Hi;<br><br><br>Anybody knows how can I do back to back with isdn pri?<br><br><br><br>Regards<br>Mohammad<br><br>__________________________________________________<br>Do You Yahoo!?<br>Tired of spam? Yahoo! Mail has the best spam protection around <br>http://mail.yahoo.com
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