Wednesday, March 17, 2010

PBX Unit Components

In physical, PBX is made up of several components. Take a look at the comparison of NEC, Panasonic and Toshiba PBX unit below :

NEC Aspila Topaz

Panasonic KX-TDA100

Toshiba Strata CIX100

Whatever the make, a PBX unit is composed several standard components or parts.

Below is the break down of anatomy of a PBX :

  • Main shelf or casing
    This is the plastic cover that protects the internal components and wiring.

  • CPU or processor
    This is the brain of the PBX that performs all the logic and switching. In some IP PBX, it also acts as the digital signal processor (DSP).

  • Card slots
    For PBX that supports cards expansion, these are the empty slots for you to add more cards for more capacity or functionality. The slot interface is usually proprietary.

  • Cards
    These are the modular cards which can be added to or removed from the PBX. Each card provides specialized function. However, most common PBX models has a card for phone extensions.

  • Power supply
    This component provides the power to the whole PBX, namely the processor and cards. One aspect to pay attention to is that the power rating is enough for all the cards in the PBX.

With these knowledge and vocalbularies in place, it would be easier for you to understand details of PBX inner-workings later.

Wednesday, January 27, 2010

IP PBX Market Share in Japan 2006

IP PBX Market Share in Japan 2006

NEC 28.3%
Fujitsu 21.7%
Oki 16.9%
Hitachi 16.6%
Avaya 4.8%
Panasonic 4.6%
Cisco 2.8%
Others 4%

NEC US 1997

(More to be posted as data become available)