Digital program-controlled switch

Digital program-controlled switches typically refer to switching equipment used in telephone exchange networks, which controls telephone connections through computer programs. Digital program-controlled switches are divided into long-distance switches, local switches, etc. There are also types dedicated to signaling networks and intelligent networks. Basic functions of digital program-controlled switches

The call connection part utilizes the digital switching network in the switch and implements digital switching using PCM. The control part is implemented by software and computer.

Features

·Free port plug-in structure, supporting expansion and upgrade;

·Rich interfaces such as magnet, carrier, e/m, 2m digital, etc;

·Bureau use mechanism (network access certificate for bureau use machines issued by the Ministry of Information Industry);

·Multiple COM ports, fully operated in Chinese;

·Dual standard internal and external call display, intelligent routing function, perfect terminal compatibility andInheritance,Powerful and flexible configuration supportdigital relay2M (PRI) board

·K20 lightning protection effectively enhances lightning and overvoltage protection performance;

·Built in uninterruptible power supply module (UPS), only external battery (48V) is needed to solve power outage problems.