Digium AEX2403E

24 port modular analog PCI-Express x1 3.3V card with 12 Trunk interfaces and HW Echo Can

The Digium Wildcard AEX2400P is a full-size PCI Express card that supports FXS and FXO interfaces for connecting analog phones and analog phone lines to a PC. With the help of an Asterisk Open Source PBX IP telephone exchange server and a primary PC, the purchase of a Digium Wildcard AEX2400P can provide a telephone exchange for a small office, which will provide all the complex and basic functions of the daily telecommunications equipment for great business.
The Digium Wildcard AEX2400P takes the place of a bulky and expensive channel concentrator, and the performance of the IP telephony system is even low. Vikorist mezzanines X400M and S400M with AEX2400P board, a solution can be developed that supports a variety of telephone terminations. To increase the scale of your solution, simply add additional AEX2400P boards with the necessary module sets.

Please note: for the operation of the FXS modules, a large 12 V socket is required from the server's life block. VIN is not required for the operation of FXO modules.

Apparently, the QFXO / QFXS mezzanine has 4 ports.

Deciphering the smart values of AEX-sets is available: AEX24 XYB, where "AEX24" means the same as Digium Wildcard AEX2400P, "X" means the number of FXS modules, "Y" means the number of FXO modules, "B" means that the dialing is without hardware moon compensation. "E" means dialing at the same time with hardware echo compensation.