. Advanced network technology

ADT-6000 digital trunking system, following the PDT digital trunking communication system standard, with its core network being in line with the IMS architecture and combined with the professional trunking features, is designed as an unique entire network and entire IP soft switch control system. ADT- 6000 soft switch consists of four-layer structure: the access layer, bearing layer, control layer, business layer, with its OSA architecture separating business and control, control and bearing. Besides the access to PDT, the core network can access the currently existing MPT1327, PSTN/PABX, SIP terminals and can access the broadband trunking in future, and comprehensive dispatcher station, etc., to support voice dispatch, data and video/multimedia, etc.

. Good call quality

Base station system adopts advanced digital voice codec technology, making users hear more clearly in a noisy environment and even keep a clear voice in poorer wireless signals through filtering the digital channel coding and vocoder and restraining the noise of the voice communication.

. Reliable telecommunication and high security

ADT-6000 system adopts the redundancy design in all its key units and elements including soft switch control unit, database, base station control unit, channel control unit, power supply system, having multi-stage graceful degradation model, supporting the main unit switch and hot plug, the long-distance back-up of database, and ending up in the system’s high reliability and safety.

. Central base station emergency networking

ADT-6000 system provides the ability to control the central base station configuration, switch and system, and users management, building up the networking between base stations and forming a unique multistage redundant backup to guarantee the networking communication in the key core area in emergency situations.

. Dual mode base station digital-analog compatibility

ADT-6000 system provides the dual-mode base station, supporting both PDT radio network communication and presenting the compatibility with the existing analog trunking walkie-talkies. It also gives a smooth transition from analog trunking to digital trunking and protects users’ original investments.

. High visualized dispatch and command efficiency

ADT- 6000 system provides multimedia dispatch application software, possesses a variety of traffic dispatch means including voice, SMS, GPS and video, and sends SMS, MMS pictures, facilitating the command center to command, dispatch and manage the police officers at the first line. And the police officers on duty can visit the information database by using a mobile terminal to query and extract the information about the personnel and vehicles so as to improve the efficiency of on-site inspection treatment.

. Convenient and efficient air programming

ADT- 6000 system has the ability of conducting PDT terminal air programming and can program the PDT terminal address book and parameters of the grouping to facilitate the police force in different places to have the PDT terminal across-regional access network communication in the support of major activities.

. Good extensibility

ADT-6000 system embraces the advanced design concept with its system architecture designed in layers and at the same time all the hardware and software designed in modular. In this way, it can give users the greatest convenience to upgrade the business in the future, supplement the new business, facilitating the upgrade and expansion of the system equipment. Also, the system has interfaces and capability of video processing to meet the demand of on-site emergency command center for all kinds of information transmission.

. In support of IP, E1, 3 G and various carrying networks

ADT-6000 offers a variety of network interfaces to access various networking links provided by users (local LAN, optical fiber, microwave, spread spectrum, 3 G) so as to satisfy users’ needs for different digital trunking networks in different environments.

. High level communication security

ADT- 6000 system provides encryption interfaces, and can be specially designed for high level security encryption standard for communication security and secrecy. The system can use the encryption technology and modules unified by Ministry of Public Security both in the system and mobile terminals, allowing users’ communication security to be fully guaranteed.

ADT-6000 system is mainly composed of 4 large systems: S-6000 soft switch subsystem, B-6000base station subsystem, and M-6000.

S-6000 soft switch subsystem: The system is used in level 1 and level 2 networking switch center in building PDT digital trunking networking, and in the management of the affiliated PDT base stations networking and users,. mainly providing functions such as the mobile management of more base stations networking switch and mobile users, the interconnection between switches, media control and switch, .security, and confidentiality.

B-6000 base station subsystem: B-6000 can provide two-system trunking access function of PDT digital trunking and MPT1327 analog trunking. It can be configured with dual-mode base stations as required, while providing PDT and MPT control signaling channel and realizing simultaneous net-in communication of PDT terminal and MPT terminal to meet the needs of users for the smooth transition from analog to digital. B-6000 single base station can support 16 carrier frequencies and 32 traffic channels and satisfy the demand of users with high capacity for communications. B-6000 includes access controller, controller power supply, channel machines, antenna feeder, etc.

M-6000 net-manager subsystem: M-6000 net-manage software is in conformity with SNMP protocol, and is mainly used in the allocation, maintenance and management of system equipment and users’ data, used in remote real-time maintenance of all system stations and the monitoring and evaluating of equipment and network, and used in a variety of data statistics and analysis of the system and users, allowing user interface and electronic map to be combined and making user operation visual and easy.

D-6000 dispatch subsystem: D-6000 uses all-IP dispatch platform, and the system can be configured with single and more dispatch terminals, forming dispatch centers of different size. Dispatch terminals, using multimedia computers and with dispatch software configuration, can fulfill functions as dispatch, monitoring, and recording of voice and data of all users in the system.