Table 2-1: Description of Symbols in Trunking Diagram

SYMBOL

DESCRIPTION

SYMBOL

DESCRIPTION

 

 

 

 

AMP

Amplifier for External Speaker

ETHER

Enternet Controller, for use with

 

 

 

AP01

AP00

SMDR/Hotel Application Card

FP

Firmware Processor Card

 

 

 

AP01

OAI Interface Card

KEY

External Key

 

 

 

ATI

SN694 ATTCON Interface Card

LCE

Line Circuit Card

 

 

 

AUCA

Analog Universal Circuit Card

 

(for Single Line Telephone)

 

(Long Line Circuit, DID Trunk,

LCF

Line Circuit Card

 

PFT Circuit)

 

 

External Music Source for Dterm

 

(for Single Line Telephone, with

BGM

 

MW Lamp)

 

Background Music Service

LDT

Loop Dial Trunk Card

 

 

 

BRT

Basic Rate Interface Trunk Card

MAT

Maintenance Administration

 

 

 

CCH

Common Channel Handler Card

MDF

Terminal

 

 

Main Distribution Frame

CFT

6/10 party Conference Trunk Card

MEM

 

 

Main Memory

CIS

Call Information System

MLDT

 

 

Melody Trunk Card

COT

C.O. Trunk Card

MODEM

 

 

Modem

DAT

Digital Announcement Trunk Card

MP

 

 

Main Processor Card

DCH

D-Channel Handler Card

PFT

 

 

Power Failure Transfer

DK

External Relay/Key Interface Card

PMS

 

 

Property Management System

DLCA

Digital Line Circuit Card

 

 

(for Dterm)

ODT

OD Trunk Card (2/4 wire E&M)

 

 

 

DLCB

Digital Line Circuit Card

PBR

 

 

(for Dterm Long Line)

PBSND

PB Receiver Card

 

 

PB Sender

DLCC

Digital Line Circuit Card

 

 

(for SN611 ATTCON and Dterm

PLO

Phase Lock Oscillator

 

6D/16D).

SMDR

 

 

Station Message Detail Recording

DSS

DSS Console

SW

 

 

Time Division Switch

DTI

Digital Trunk Interface Card

16CFT

 

 

16 Circuit Three Party Conference

DTG

Digital Tone Generator

 

 

 

 

Trunk

 

 

 

 

Note: For details of circuit cards, refer to the Circuit Card Manual.

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NEC 120 manual Description of Symbols in Trunking Diagram, Symbol Description

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.