NEC 120 manual NAP Sheet 18/29 Installation of Main Equipment, Inch Rack-Mounting Installation

Models: 120

1 125
Download 125 pages 31.88 Kb
Page 50
Image 50

NAP- 200-003

Sheet 18/29

Installation of Main Equipment

1.4 19-Inch Rack-Mounting Installation

1.3.1NEC Australia can provide a rack assembly, which can be configured as follows:

(a)Up to four PIM’s at the front, and the requisite number of MDF units and/or sealed batteries at the rear. Refer to Figure 2-6 for a typical example.

(b)Up to eight PIM’s, mounted back-to-back in one rack, for sites where the MDF and batteries are mounted elsewhere.

1.3.2For a customer-supplied rack installation, NEC Australia can provide the following mounting hardware:-

ITEM

STOCK NUMBER

 

 

19” Rack Insert for PIM

4392029

 

 

19” Battery Shelf

4392032

 

 

Krone MDF 19” back-mount

4392078

 

 

1.3.3For typical rack-mounted layouts, see Figures 003-10 to 003-13. The 19”rack configurations shown h erein are based on the use of ribbon-type LT cables, which terminate on a connectorised 100-pair Krone block, and standard 10-way disconnect modules for the MDF jumpers. For installations using an existing MDF, standard 50-pair cables can be used, provided that the LT CHAMP connectors are the centre-loaded type.

1.3.4The 19” Battery shelves are based on the use of 26 A-H batteries. The Manufacturer’s limita tion is three battery modules in parallel, so capacities greater than 78 A-H must be installed external to the rack.

2.Precautions

(i)Where the battery and MDF cables pass through a bulkhead, the grommet strip provided must be added to the aperture, to protect the insulation.

(ii)The protective Earth must be extended to the Krone MDF back-mounts. Note that the MDF is isolated from the rack, to avoid current-loops in the Earthing System. (AUSTEL Regulations apply).

(iii)Ensure that the rack and the PIM’s have reliable bonding to the Protective Earth of the AC power cord(s). It is advisable to use Shakeproof washers on the PIM mounting bolts, to ensure metal-to-metal contact on painted surfaces.

(iv)For PABX’s which are powered from a DC source only, a separate Protective Earth must be connected to the rack and PIM’s.

(v)For a 4-PIM configuration, the capacity of the internal battery option equals that of the minimum external option, so cost should be the only deciding factor as to the preferred type.

CHAPTER 3

AD-25182501

Page 36

Revision 1.0.1

Page 50
Image 50
NEC 120 manual NAP Sheet 18/29 Installation of Main Equipment, Inch Rack-Mounting Installation, Stock Number, Precautions

120 specifications

The NEC 120 is a well-regarded platform that exemplifies cutting-edge technology and performance in its category. Designed primarily for high-performance computing and telecommunications applications, the NEC 120 has become a staple in many industries, providing robust solutions for demanding workloads.

One of the standout features of the NEC 120 is its microwave technology, which utilizes advanced signal processing capabilities. This system enhances the efficiency of data transmission, reducing latency and boosting overall communication performance. The NEC 120's ability to handle high-frequency signals makes it especially valuable in environments that require rapid data processing, such as mobile networks and internet service providers.

In terms of hardware, the NEC 120 is powered by a multi-core processor architecture, enabling parallel processing that significantly improves computational speed. This feature is essential for applications that handle complex calculations and large volumes of data simultaneously. Additionally, the architecture is complemented by a high-capacity memory system that supports extensive data storage and retrieval, catering to the needs of enterprise-level applications.

Another notable characteristic of the NEC 120 is its modular design. This allows for customization and scalability, making it easy for organizations to adapt the system to their specific requirements. Whether a company needs to expand its capabilities or integrate new technologies, the NEC 120 can be updated without complete system overhauls, thus maintaining cost-effectiveness.

The NEC 120 also excels in its energy efficiency, which is critical in today’s environmentally conscious technology landscape. By minimizing power consumption while maximizing performance, the platform not only reduces operational costs but also aligns with sustainable practices.

Security is an increasingly important aspect of technology, and the NEC 120 addresses this with robust security features to protect data integrity and privacy. This includes advanced encryption methods and secure access protocols, ensuring that sensitive information is safeguarded from breaches.

Overall, the NEC 120 stands as a testament to NEC Corporation's commitment to delivering innovative and reliable technology solutions. With its emphasis on performance, scalability, and security, the NEC 120 is well-suited for a wide range of applications, from telecommunications to enterprise computing, making it a valuable asset for organizations aiming for technological advancement.