PA-PW55-A

Power

PA-PW55-A

Power

1.General Function

The PA-PW55-A (PWR) circuit card supplies operating power to circuit cards located in the PIM. The -48 V input power source, which is converted to +5 V, -5 V, and +12 V, is distributed to each circuit card in the associated PIM. This card also has a Ringing Generator Unit (RGU), whose output frequency and voltage can be selected from 20 Hz, 25 Hz, 75 Vrms, 90 Vrms by switch setting on this card. In addition, a Howler Tone circuit resides on this card.

PA-PW55-A (PWR)

PA-PW54-A (DPWR)

DC-DC

DC-DC

 

+5V, +12V, -5V

RGU

RGU

 

CR (For LC)

HOW

HOW

REL

REL

SUB

HOW (For LC)

SUB

PWR

PWR

NFB

NFB

 

-48 V (For LC, TRK)

 

+80 V (For MWL)

 

-48 V

 

+80V (Option) Note

Note: The +80V input is required for activating Message Waiting Lamps (MWLs) .

Figure 2-20 Location of PA-PW55-A (PWR) Card in the System

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NEC 2400 ipx manual PA-PW55-A, Power

2400 ipx specifications

The NEC 2400 IPX is a robust and versatile business communication solution designed to meet the increasing demands of modern enterprises. It is a part of NEC's esteemed range of IP-based telephony systems, known for integrating sophisticated technology and user-friendly features.

One of the main characteristics of the NEC 2400 IPX system is its modularity. This flexibility allows organizations to scale their communication needs effectively. The system can be customized with various modules that cater to specific requirements, enabling businesses to add or remove functions as their operations evolve. This adaptability makes the NEC 2400 IPX ideal for small to medium-sized enterprises as well as large organizations.

The NEC 2400 IPX incorporates advanced VoIP technology, which facilitates seamless communication over the internet. This leads to reduced operational costs, as traditional phone lines are no longer a necessity. VoIP also enhances mobility, allowing employees to stay connected irrespective of their physical location. The system supports a wide range of endpoints, including digital, analog, and IP phones, facilitating a diverse range of user preferences.

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In summary, the NEC 2400 IPX is a leading telecommunications solution that combines modularity, VoIP technology, user-friendly features, and robust security measures. Its ability to adapt to the changing needs of businesses makes it a preferred choice for organizations looking to enhance their communication infrastructure. As technology continues to evolve, the NEC 2400 IPX stands out as a reliable and future-ready choice for modern enterprises.