PBX

 AC Electric motor Plastic fan parts 
Specifications
1. Customised
2. good quality
3. 20 years manufacturing experience
4. Delivery Detail: 20-35 days after receiving payment
SPC exchange according to use can be divided into local, long-distance and user switches; According to the connection mode can be divided into air separation and time-division switch. SPC single phase motor exchange according to the information transfer mode can be divided into: analog switches and digital switches. Due to SPC air separation switches in the network (or exchange network) using air separation switch (or intersection switch array), and in general transmission and exchange in the road sections are analog voice signal, thus habit called programmable analog switch, the switch does not need to voice the analog-to-digital conversion (codec), user circuit is simple, so the cost is low, is mainly used for small capacity to simulate the PBX. 


Totally Enclosed Protect Feature and Three-phase Phase low rpm ac electric motor

Specifications
power range: 0.12-18.5 kW 
Centre height of frame: 63-160 mm 
Rated Voltage: 380 V 

Rated Frequency: 50Hz or 60Hz 
Program-controlled switches single phase ac motor in general in the road section is analog voice signal transmission and exchange, thus habit called SPC digital exchange, as digital communications and pulse code modulation (PCM) technology rapid development and extensive application of the advanced countries in the world since the '60 s with great enthusiasm to develop digital SPC exchange, after a long struggle, France in 1970, first in nyon (Lanion) launched the world's first successful SPC digital exchange system E10, it marks the switching from traditional analog switching into the era of digital switching. Due to the advanced nature of SPC digital exchange technology and equipment of economy, make Three phase motor up a new step, telephone exchange and to open the business, implement integrated services digital switching laid a solid foundation, thus become the main development direction of switching technology, with the microprocessor technology and the rapid development of application- specific integrated circuit, the superiority of SPC digital exchange more and more obvious. At present the production of large capacity of PBX are all digital.