ISDN

Call-By-Call Overview

Call-by-Call Min/Max Control

There are two variables that can be programmed for each trunk group to ensure optimum call utilization. These are the minimum and maximum values.

The minimum (min.) value is defined as the minimum number of B-channels in reserve that are necessary to ensure that a given trunk group can adequately service calls. The default value is zero.

The maximum (max.) value is the maximum number of B-channels that are necessary to ensure that a given trunk group can adequately service calls during a peak period. The default value is 23.

The min and max values must be determined by you based on the traffic volume and environment. Here are some guidelines:

The total number of lines assigned to all trunk groups as minimums should not exceed the number of B-channels in the channel group. For example, if there are 23 B-channels in the channel group, the total sum value programmed as minimum in all trunk groups should not exceed 23.

The maximum value typically never exceeds the total of the subscribed B-channels for the channel group. The programmed maximum value is typically used to limit the total number of shared lines available to a given trunk group.

Example 2

This example shows how to determine the maximum number available to a trunk group.

Refer to Figure 7-3. Add the min. values from the other trunk groups, then subtract that sum from the number of B channels in the channel group. The remainder is the total number of lines available for that trunk group. This is outlined in steps 1 and 2 below.

1.Determine the total number of lines available to Trunk Group 1.

3Trunk Group 2 Min.

+5 Trunk Group 3 Min.

8Min. Value for Trunk Groups 2 & 3

2.Subtract from other Trunk Groups’ min. values from the number of B-channels in that Channel Group.

Channel Group 1

Trunk Group 1

Max. = 23

Min. = 8

Trunk Group 2

23B-channels in Channel Group 1

-8 Min. Value for Trunk Groups 2 & 3

15Lines available to Trunk Group 1 (8 reserved + 7 shared)

Max. = 7 Min. = 3

Trunk Group 3

Max. = 12

Min. = 5

4917

Note Even through the max. value is set for 23 channels, only 15

channels are available forFigure 7-3 Example 2 – Shared Trunk Lines

Trunk Group 1.

Maximum trunk group values are set in Program *67-4. Minimum trunk group values (reserved) are set in Program *67-3.

7-12

Strata DK Programming 5/00

Page 360
Image 360
Toshiba dk14, DK40I, DK424I manual Call-by-Call Min/Max Control, Channel Group

DK424, DK424I, DK40I, dk14 specifications

The Toshiba DK14 and DK40I are advanced digital video recorders (DVRs) that have redefined the standard for high-quality video surveillance systems. Designed primarily for security applications, both models boast a suite of impressive features, making them ideal choices for various environments, including commercial, retail, and educational settings.

The Toshiba DK14 stands out with its exceptional recording capabilities. It supports high-definition video capture, ensuring that every detail is captured with crystal clarity. The device can handle multiple camera inputs, allowing users to connect several surveillance cameras simultaneously, depending on the configuration. With its robust storage capacity, the DK14 can accommodate extended recording times, making it suitable for long-term surveillance needs.

One of the key characteristics of the DK14 is its user-friendly interface, which simplifies operation for both novice and experienced users. The system comes equipped with advanced motion detection technology, enabling it to trigger recording only when movement is detected, significantly optimizing storage use. Moreover, it features remote access capabilities, allowing users to monitor live feeds and review recorded footage from virtually anywhere via smartphone or computer.

In comparison, the Toshiba DK40I offers enhanced features targeted towards users requiring higher processing power and larger storage capabilities. This model is equipped with advanced compression technologies such as H.264, which reduces file sizes without compromising video quality. It can support higher-resolution cameras, further enhancing the clarity and detail of recorded footage.

The DK40I also prides itself on its scalability, accommodating numerous input channels, making it suitable for expansive surveillance setups. Another significant feature is its sophisticated alarm management system, which can integrate with various security sensors and alarms, providing users seamless control over their security environment. The device also supports various video outputs, including HDMI and VGA, ensuring compatibility with a wide range of display systems.

Both models utilize Toshiba's commitment to reliability and performance, incorporating high-grade components designed to withstand the rigors of continuous operation. They are engineered for ease of maintenance, with options for firmware updates and technical support, ensuring that users benefit from the latest advancements in surveillance technology.

Overall, Toshiba’s DK14 and DK40I represent cutting-edge solutions in the realm of digital video recording, offering exceptional performance, versatility, and user-friendly features to cater to diverse surveillance needs.