KTJ132 Ground Output Intrinsic Safety Digital Dispatch Machine

The KTJ132 intrinsically safe digital dispatch machine is a new generation intelligent multi-layer integrated communication dispatch system developed by Hangzhou shollper Technology Co., Ltd. As the core equipment of emergency dispatch command and management, it aims to create a modern emergency command system for mines, strengthen safe and efficient production in mines, enhance the ability of enterprises to quickly respond to emergencies, improve the efficiency of emergency response and the allocation of emergency resources in emergency situations, and coordinate production and disaster relief departments to coordinate disaster relief tasks in a timely manner.

The KTJ132 intrinsically safe programmable scheduling machine can provide multi-level scheduling, telephone calling, production command, and work coordination for coal mine systems. Suitable for the establishment of safety scheduling systems for mining production such as coal and metal mining, meeting the requirements and standards of mining safety production. The dispatch center can directly dispatch explosion-proof telephones in the mine and ordinary telephones in the mine. Underground explosion-proof telephones can directly call the dispatch center through hotline priority.

KTJ132 adopts a 19 inch 6U standard chassis structure, supporting 16 channels to 1792 channels, and can support up to 56 E1s. It also has linkage functions for video, voice, wireless radio, broadcasting, and alarm systems. Adopting a more powerful and flexible ARM control core, the modular design makes it easy to deploy, install, manage, maintain, and smoothly upgrade and expand.

KTJ132 adopts a design without a separate control board, so even if cascaded to a seven box device, a single MCU main control board can complete the control and management of the seven box device. The powerful integrated modularization and functional design enable KTJ132 to support more types of business cards: FXS FXO、IPS、IPO、E1、EM、 Carrier relay, magnet relay, REC recording board, HF cluster gateway board, AUD audio interface board, DMB broadcasting system board, ALM dry contact alarm board, RLD fusion linkage system board, can meet various application needs of users.

Product advantages:

1. System architecture and hardware reliability

Distributed module structure, fully decentralized load sharing working mode, each module is relatively independent, with small fault correlation and impact range, and faults between modules of the same level do not affect each other.

● Public hot backup redundancy design ensures high availability of the main CPU, switching network, clock, signaling equipment, power ring current, and communication links. The main and backup motherboards, as well as power switching, do not affect other parts. Switching jobs will not interrupt the current call line.

Low power consumption, energy-saving, the whole machine is composed of high integration, low-power integrated circuits and electronic components. The whole machine is usually in a low-power state, and only the corresponding extension will enter the working state during off hook calls, achieving energy-saving and power-saving effects.

Adopting ultra large scale communication dedicated chips, dedicated DSP digital signal processing chips, FPGA programmable logic chips, etc., the system ensures low power consumption, high efficiency, long lifespan, and high reliability.

The call records are never lost, and the system adopts a large capacity Flash call record storage system, which has the ability to store a massive number of call records.

The chassis cabinet, backplane, and various circuit boards adopt standardized universal design to enhance compatibility and anti-interference.

All circuit boards support hot swapping.

Reasonable component derating design and strict aging screening.

The user relay unit strictly adopts a three-level lightning protection circuit.

2. Highly integrated and scalable

The system has a high degree of integration:

1) Support voice communication: basic program-controlled voice exchange scheduling technology;

2) Support video linkage: real-time video linkage to achieve multimedia scheduling;

3) Support built-in broadcasting system: realize scheduled broadcasting, group broadcasting, task process broadcasting, MIC broadcasting, etc;

4) Support built-in alarm system: supports one click alarm, switchboard forced alarm, etc;

5) Support built-in full channel recording system: full channel and all types of communication recording, including internal and external lines, meetings, broadcasts, and all other communication recording.

6) Support built-in cluster gateway system: connect to different frequency bands of radio stations, and the dispatch center can easily dispatch functions such as walkie talkies for each radio station with just one click.

3. Real time detection ensures the stability of the system

Strict self diagnostic board monitoring function, with fault alarm and fault grading processing functions.

Complete centralized monitoring and maintenance functions, and convenient graphical maintenance operations.

All internal and external communication status monitoring, real-time recording information.

Real time engineers provide online remote assistance.

4. Software reliability

Hierarchical distributed modular software architecture.

Develop graphical software based on Windows and provide convenient management of various maintenance platforms for the backend on the web.

Important data is equipped with access protection and graded protection. At the same time, important programs and data are backed up and protected.

Standardize communication messages and conduct strict rule checks and error checks.

5. Redundant design

(1) The motherboard CPU system supports both primary and backup modes of operation.

(2) The primary and backup sides can monitor each other and also monitor the current working status of each motherboard. When the motherboard malfunctions, the standby mode will automatically switch to the active mode, and the motherboard that switches to the active mode will continue to work.

(3) The switching network adopts the fourth generation non blocking ultra large scale digital switching network.

(4) The clock/network synchronization circuit also operates in both primary and backup modes. In case of malfunction, it can automatically switch and has manual control switching function.

(5) The power supply adopts dual parallel power supply according to the machine frame, and the primary and secondary power supplies adopt a 1+1 dual hot backup working mode.

6. Advanced circuit design concepts

(1) To improve the anti-interference ability of the system, measures taken in electromagnetic compatibility design include: separating power and ground lines, separating high-speed signal lines from low-speed signal lines, matching input and output impedance, strengthening grounding, filtering, and shielding measures.

(2) To improve the adaptability of the system to the environment, the following measures are taken in the design of environmental resistance: the user circuit is equipped with primary and secondary protection against overvoltage and overcurrent, and has an automatic overvoltage recovery function. The overvoltage and overcurrent protection designs comply with the ITU-T recommendation K20 requirements. Corresponding measures have also been taken in terms of three protections and vibration resistance.

(3) Select large-scale and ultra large scale integrated circuits, as well as ARM and DSP chips with strong speech processing capabilities.

(4) The circuit boards of each unit are interconnected with the back panel of the rack using plug-in connectors.

(5) Adopting a multi-layer common backplane, the single board bus interface is designed with the same dedicated chip.

Coal mine group application

Application in small and medium-sized coal mines

Dual circuit mining scheduling system

Functional features:

1. The new generation of integrated communication scheduling system for mining. (MIIT Network Access Certificate: 04-B759-232594; Mining Safety Standard Certificate: KHB210005; Mining Coal Safety Certificate: MHB210017; Explosion proof Certificate: CCCMT21.0061;)

2. Free expansion: Supports 16 expansion channels up to 1792 expansion channels.

3. No need for separate control board design: a single MCU main control board can control seven frame devices.

4. Support voice scheduling, video scheduling, broadcast scheduling, cluster scheduling, alarm scheduling, SMS scheduling, contingency plan scheduling, GIS geographic information and other multi system scheduling.

5. Support integrated scheduling, unified scheduling, hierarchical scheduling, and emergency scheduling.

6. Support full call, group call, and group call.

7. Support dual circuit protection function.

8. Support one click alarm, one click broadcast, one click meeting, one click call, and emergency call.

9. Unlimited access to the dispatch console.

10. Multi network integration: seamless integration of multiple communication networks (IP PSTN、GSM、CDMA、WiFi、Wimax、 Simulate clusters, digital clusters, etc., to achieve the integration of wired, wireless, fixed, and mobile networks.

11. Supports full channel recording.

12. Real time monitoring of all terminals.

13. Flexible networking: Group networking, multi-level networking, multi domain networking.

14. Support batch deployment of IP telephony.

15. Rich board types: FXS FXO、IPS、IPO、E1、EM、 Carrier relay, magnet relay, REC recording board, HF cluster gateway board, AUD audio interface board, DMB broadcasting system board, ALM dry contact alarm board, RLD fusion linkage system board.

16. All boards support hot plugging and mixed plugging.

17. Quick deployment, easy maintenance, and support for web remote debugging and maintenance.

18. Support docking function.

19. The IP relay board also supports IP phone registration.

20. Support redundant hot backup: MCU main control board/secondary power board/primary power box/recording board.

21. The long-distance user board can connect to terminals up to 10 kilometers away.

22. Provide an open SDK that supports secondary customized development.

23. Terminal diversification: dispatch desk, analog/SIP/magnetic phone, WIFI mobile phone, IP/analog camera, microphone, headset, analog/network amplifier, network sound column, speaker, explosion-proof phone, walkie talkie, SOS alarm, access control, etc.

24. Lightning protection.

Note: The above configurations are mostly relatively maximum configurations. The bold numbers in front represent the total sum of each business board, and users can flexibly match them according to their own needs.

Supported business boards and slots: FXO/FXS board (1), IPS board (2), IPO board (2), PCM board (2), E/M board (1), REC recording board (2), HF cluster gateway board (1), AUD audio interface board (1), DMB broadcasting board (2), ALM dry contact alarm board (1), RLD fusion linkage board (2).

Technical parameters:

The system complies with the specifications and standards of the International Telecommunication Union (ITU-T); Compliant with Recommendations G.712 and G.732 of the International Telegraph and Telephone Commission (CCITT); Complies with GB/T5443-1985 "Test Methods for Ring Flow and Signal Sound Technical Specifications of Automatic Telephone Switching Network"; Complies with GB/T5443-1985 "Test Methods for Technical Specifications of User Signals in Automatic Telephone Switching Networks"; Complies with GB/T14381-1993 "General Technical Conditions for Programmable Digital User Automatic Telephone Dispatch Machines"; Obtained the telecommunications equipment access license approved by the Ministry of Industry and Information Technology of the People's Republic of China.

Digital format: Digital time-division A-rate 2.048Mb/s PCM system

Switching network: Internal and external 2048 × 2048 non blocking single T network interface

Transmission characteristics: Extension - Extension 2-7dB Extension - Relay 2-7dB

Dialing methods: pulse, audio

Pulse reception: pulse speed of 8-14 pulses per second, pulse interval ≤ 350ms;

Pulse forwarding: Pulse speed 10 ± 1 pulse/second, pulse interruption ratio (1.6 ± 0.2): 1;

Secondary dialing for relay users: pulse speed of 10-12 pulses per second, acceleration of less than 10%.

Receiving level:

When using dual audio input, the single audio reception level range is -4~23dBm, and the dual audio level difference is ≤ 6dB.

Crosstalk attenuation>70dB (1100Hz)

Steady noise ≤ -65dBm Non steady noise ≤ -40dBm

Traffic volume: 0.2 Erl for users, 0.7 Erl for relays

Call loss rate:<1% for this game,<0.5% for outs

Ground imbalance:

300～600Hz≥40dB          600～3400Hz≥46dB

User feeding current ≥ 18mA, loop resistance R ≤ 1K Ω

Insulation resistance R ≥ 20K Ω Line capacitance C ≤ 0.5 µ F

Power noise ≤ 2.4mV

Power supply: AC: 220V ± 20% 50Hz ± 2Hz

External connection: 48V 20-100AH battery

Power consumption: 50W~1000W (depending on system configuration)

Usage environment: Temperature 0-36 ℃, relative humidity 35% -75%

Host size: 480mm * 336mm * 264mm (width * depth * height)

Weight: 6U single frame (common unit): 11kg, for every additional card added to the business unit:+0.3kg