ISDN Features

Primary Rate Interface (PRI), Answering Calls

Programming (Cont’d)

10-03-01 : PCB Setup - ISDN Line Mode

Setup and confirm the Basic Configuration data for each PCB. This program selects the ISDN Line Mode: 0=Not set, 1=T-Bus, 2=S-Bus, 3=Network Mode (Leased Line), 4=Network Mode (Intercon- nected Line), 5=Network Mode (Interconnected Line, Fixed Layer 1=NT), 6=S-Point (Leased Line). The option selected here determines the clock source for a networked system. With option 3, telco sends the clock to the master and slave systems. With option 4, the master system sends the clock to telco which then sends the clock to the slave system (with no telco, the master system sends the clock directly to the slave system). With option 5, the master and slave systems both send the clock to telco.

Default Setting: T-Bus (1).

10-03-02 : PCB Setup - Logical Port Number

Setup and confirm the Basic Configuration data for each PCB. This program displays the start port number of a PRI line. Thirty logic ports are automatically assigned to a PRI line (T-Bus = 1-200, S-Bus = 1-256).

Default Setting: (0).

10-03-03 : PCB Setup - CRC Multi-Frame (CRC4)

Setup and confirm the Basic Configuration data for each PCB. This program determines whether or not the CRC Multi-Frame (CRC4) is used (0=off, 1=on).

Default Setting: Off (0).

10-03-04 : PCB Setup - Layer 3 Timer Type

Setup and confirm the Basic Configuration data for each PCB. This program selects the Layer 3 timer type (1-5). Each timer value of Layer 3 is set up for each type in Program 81-06 (T-Bus) and Program 82-06 (S-Bus).

Default Setting: Layer 3 Timer Type (1).

10-03-06 : PCB Setup - Length of Cable

Setup and confirm the Basic Configuration data for each PCB. Select the length of cable to be used (0=0-40m, 1=40-81m, 2=81-122m, 3=122-162m, 4=162-200m).

Default Setting: Cable Length 40-81m (1).

10-03-07 : PCB Setup - S-Point DID Digits

Setup and confirm the Basic Configuration data for each PCB. This program selects number of DID digits to be received (0-4).

Default Setting: Number of DID Digits (0).

10-03-08 : PCB Setup - Dial Sending Mode

Setup and confirm the Basic Configuration data for each PCB. Select either enblock or overlap sending (0=Enblock Sending, 1=Overlap Sending).

Default Setting: Enblock Sending (0).

10-03-09 : PCB Setup - Dial Information Element

Setup and confirm the Basic Configuration data for each PCB. If Overlap Sending is selected in Pro- gram 10-03-08, select either Keypad Facility (0) or Called Party Number (1) for the dial information element.

Default Setting: Keypad Facility (0).

10-03-10 : PCB Setup - Master/Slave System

Setup and confirm the Basic Configuration data for each PCB. If the system is networked, set the sys- tem as either the slave (0) or master (1) system.

Default Setting: Slave System (0).

Aspire ISDN PRI Manual

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NEC ISDN-PRI manual PCB Setup Isdn Line Mode, PCB Setup Logical Port Number, PCB Setup CRC Multi-Frame CRC4

ISDN-PRI specifications

NEC ISDN-PRI (Integrated Services Digital Network - Primary Rate Interface) is a telecommunication standard that provides high-capacity voice and data transmission over digital networks. Offering exceptional reliability, ISDN-PRI has become a crucial component for businesses seeking robust communication solutions. One of the standout features of NEC ISDN-PRI is its ability to support 23 voice channels, each capable of delivering clear and high-quality audio simultaneously. In addition to voice channels, ISDN-PRI can also handle one data channel, facilitating data transmission at speeds of up to 2.048 Mbps.

A significant characteristic of ISDN-PRI is its digital nature, allowing for efficient use of bandwidth and minimizing issues common in analog systems, such as signal degradation and noise. This technology leverages time-division multiplexing (TDM), which enables multiple voice signals to occupy a single transmission medium without interference. Each channel is allocated a specific time slot, ensuring a seamless communication experience.

NEC ISDN-PRI is also known for its features such as call setup and teardown capabilities. Utilizing the D channel, ISDN-PRI can establish and terminate calls quickly, enhancing overall call management and enabling businesses to handle high volumes of concurrent calls efficiently. Moreover, businesses can benefit from supplementary services, including caller ID, call forwarding, and call waiting, which enhance operational efficiency and customer service.

Security is another critical aspect of NEC ISDN-PRI. The technology includes features like encryption and secure access protocols, ensuring that sensitive data remains protected during transmission. These security measures are vital for businesses dealing with confidential information and seeking to comply with industry regulations.

Furthermore, ISDN-PRI is highly compatible with various telecommunication infrastructures, making it a versatile choice for organizations looking to upgrade or integrate their existing systems. The ability to connect to PBX systems and support multiple protocols adds to its appeal, providing businesses with scalability and flexibility as their communication needs evolve.

In summary, NEC ISDN-PRI stands out as a reliable and efficient communication solution. With its support for multiple voice channels, high data transmission rates, robust security features, and compatibility with various systems, ISDN-PRI is well-suited for modern business environments seeking to enhance their communication capabilities and improve overall operational efficiency.