On Monday 11 February 2013, Shitian Long wrote: > Hello, > > I am trying to connect two asterisks with PRI connection. One asterisk has > TE405P Quad PRI ports card, anther asterisk has TE110P 1 PRI port card. > > I am wondering if there would be some step by step guide that I could > follow to to this kind of connection? > > Thanks
If you want to connect the two boxes together via the telephone network, then you will need appropriate NTEs (Network termination Equipment -- the boundary between where the telco's responsibility ends and yours begins) installed, and the telco should give you cables -- or at least advise on wiring. Connecting an Asterisk card to an NTE requires a straight-through cable. If you just want to connect the boxes directly (aot via the telephone network) then you will need to make up a special cable. Get CAT5 cable, plugs and crimping tool. (If you are especially lazy, you can even just cut the plug off one end of a pre-wired CAT5 cable, and crimp your own in place of where it used to be.) Now you need to swap over pin 1 (WHITE/orange) with pin 5 (WHITE/blue) and pin 2 (ORANGE/white) with pin 4 (BLUE/white). It won't do any harm leaving pins 3, 6, 7 and 8 connected, and it will make crimping up the plugs easier. One end: Standard wiring. 1: WHITE/orange 2: ORANGE/white 3: WHITE/green 4: BLUE/white 5: WHITE/blue 6: GREEN/white 7: WHITE/brown 8: BROWN/white Other end: Special wiring for ISDN crossover. 1: WHITE/blue 2: BLUE/white 3: WHITE/green 4: ORANGE/white 5: WHITE/orange 6: GREEN/white 7: WHITE/brown 8: BROWN/white Don't forget, one of the machines has to be told (in chan-dahdi.conf) to pretend it is an NTE rather than subscriber's equipment! -- AJS Answers come *after* questions. -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
