4 Replies Latest reply on Jul 12, 2017 1:31 PM by jayh

    24 analog did trunks with loop start signaling utilizing a 924e

    jhinton New Member

      I have an end user with an older pbx that wants 24 analog did trunks, loop start signaling, to be passed through a 25-pair am-phenol connector to a 66 block. Is this configuration possible with a 924e?

      I used to work for a carrier where this solution would have been done with an Adit 600 and FXO cards. I'm hoping to use more up to date equipment if possible?

        • Re: 24 analog did trunks with loop start signaling utilizing a 924e
          jayh Hall_of_Fame

          Depending on your definition of "DID trunks, loop-start signaling" maybe.

           

          The FXS ports on a TA924e are configurable as loop-start or ground-start lines, where you would configure each port with a given fixed DID which would send ring voltage when dialed. The interfaces from the TA924e look like POTS lines. They are not set up to pass digits through to the customer equipment. The TA924e provides battery, dial tone, and ringing and expects digits from the connected equipment. In simple terms it is designed to connect to telephones.

           

          If you are looking for FXO capability where the connected device provides battery and expects digits, there is a specialized version of the TA924e which has 16 FXS ports and eight FXO ports. In addition there is a single FXO port on all of the TA900e devices regardless of the number of FXS.

            • Re: 24 analog did trunks with loop start signaling utilizing a 924e
              jhinton New Member

              That's what I was afraid of. This PBX is expecting old school loop start analog did trunks, and is looking for 10 digits to be passed inbound. They want 1 DID dedicated to each channel, and then have that signal passed through to a 66-block. As I said, when I worked for a different carrier, we accomplished this by setting up the Adit 600 chassis, and then setting up FXO cards, and each card had 8 ports on it.

               

              I will see if they can condense their DID trunks to 8, and then I can order up a TA924e with the 8 FXO ports.

               

              Is there a device I can hook up to the FXO port on the 924e that will then send out the trunks on a amphenol connector on a 25-pair cable to a 66 block?