NAP- 200-007

Sheet 32/42

Termination of Cables on MDF

(b)MDF Cross Connection

Notes: 1. The current capacity of the opto-coupler (PN-DK00 card) is 125 mA.

2.The isolator’s relay must be compatible with nominal 24 Volt circuits, and the suppression diode shown is mandatory.

3.The audio path in the isolator must be capacitor-coupled as shown.

4.The Line-fault detection in the C.O.T. must be disabled. Refer to the Command Manual for details.

 

PIM0

 

LTC0

MDF

 

 

 

PN-DK00

 

J

 

 

 

 

 

P

 

 

 

 

 

K0

1

1

 

+

TO CONTROL

 

 

 

 

GND

CIRCUIT

 

 

K1

26

26

 

 

LEN0000

 

 

 

 

K2

2

2

-27V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K3

27

27

 

 

 

 

LT00

K4

3

3

A

 

 

 

 

 

 

TO SPEECH

 

 

 

 

 

 

 

K5

28

28

 

 

CIRCUIT

 

LEN0002

K6

4

4

B

 

 

 

 

 

 

 

 

 

K7

29

29

 

 

 

 

PN-4COT/PN-2COT

 

 

 

 

 

 

 

R0

5

5

 

 

 

 

LEN0004

(No. 0)

30

30

 

 

 

 

 

T0

 

 

PAGING EQUIPMENT

 

R1

6

6

 

 

 

 

 

 

 

LEN0005

(No. 1)

31

31

GND

 

 

 

 

T1

 

 

 

LT01

R2

7

7

-27V

 

CONTROL

SPEAKER

LEN0006

 

CIRCUIT

 

(No. 2)

32

32

 

 

 

 

 

T2

 

 

 

 

 

R3

8

8

A

 

SPEECH

 

LEN0007

(No. 3)

 

 

 

 

 

33

33

B

 

PATH

 

 

T3

 

 

 

 

 

 

 

 

CIRCUIT

 

PZ-PW86

 

 

 

 

 

 

 

-27V

 

 

 

 

 

 

 

GND

 

 

 

 

 

AUSTEL - approved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Line Isolation Unit

 

Figure 007-19 MDF Cross Connection for Paging Equipment

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CHAPTER 3

Page 95

Revision 1.0.1

Page 109
Image 109
NEC 120 manual NAP Sheet 32/42 Termination of Cables on MDF, MDF Cross Connection

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.

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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.