QH-1327 trunking communication system

Product Model : QH-1327

The QH-1327 trunking communication system uses the standard signaling MPT1327, compliant with the GA176-1998 police use standard of Police Automatic Network Scheme—One of Mobile Communications for Public Security and compatible with MPT-1343/CPSX numbering plan. All mobile terminals meeting the standards of MPT1327 signaling can be used on the network.

Main Features

【Call】
Individual call, group call, inter-BS group call, call monitor, call join, group call maintenance and late entry, system-wide all call, emergency call, super group call, include call, call forward, busy queuing and auto call back, PABX/PSTN or radio call, short data call.
【System Management】
Real-time changing of system parameters, kill/revive, priority level setting, transmit timing, traffic statistics and enquiry, real-time monitoring and managing of the system status, channel control, control channel switch, release timing setting of traffic channel, remote maintenance, terminal management and dispatch, database backup.
【System Maintenance】
System self-check, malfunction isolation, auto switch of control channel, auto protection against interference, auto monitoring of BS equipment, compatibility with conventional terminals, plug/unplug with power, expansion and compatibility, virtual private network, independent user management, independent dispatch.
【Networking】
Auto roaming, inter-system individual call, inter-system group call, network management, network monitoring, network dispatch, broadcast, heterotypic gateway’s interconnection with trunking systems of other manufacturers.

Super Features

【System Management】
Real-time changing of system parameters, kill/revive, priority level setting, transmit timing, traffic statistics and enquiry, real-time monitoring and managing of the system status, channel control, control channel switch, release timing setting of traffic channel, remote maintenance, terminal management and dispatch, database backup.
【System Maintenance】
System self-check, malfunction isolation, auto switch of control channel, auto protection against interference, auto monitoring of BS equipment, compatibility with conventional terminals, plug/unplug with power, expansion and compatibility, virtual private network, independent user management, independent dispatch.


Specification

【System functions and equipment specifications are totally compliant with the GA176-1998 police use standard of Police Automatic Network Scheme—One of Mobile Communications for Public Security.】 【Totally compatible with trunking terminals compliant with the MPT1327 and MPT1343/CPSX standards.】 【Centralized and decentralized controls are combined together. Group call is shorter than 300ms; individual call is shorter than 500ms; inter-system call is shorter than 1s.】 【Automatic switch between PABX/PSTN subscribers and radio. Each system user can call PABX/PSTN to access the local programme-controlled exchange directly.】 【Users can roam among multiple base stations and systems automatically.】 【Flexible handling of group calls among multiple base stations. Set each group call with a home base station, saving channel resource and reducing the number of missed calls as much as possible.】 【Flexible setting of inter-system group call among multiple systems, avoiding unnecessary waste of channel resource. 】 【Group calls among multiple systems have the feature of group call maintenance. Users return to the talking group when stepping over the base station during communication.】 【Multi-level Fail Soft】 The system can close the malfunctioned channel automatically on which interfered receiver, low power of transmitter, malfunction for power supply of transceiver or link malfunction occurs. 【Three-level Networking】 Both signaling and audio are controlled by three levels, strengthening the fail soft capability and applicable for networking at county, municipal and provincial levels. 【Flexible Networking】 Allow the coexistence of 2M transmission network (using the technology of IP over SDH), IP local area network, satellite network, CDMA, ADSL, etc. 【Flexible Access into the Mobile Trunking System】 Access the networking system in a fixed or mobile mode through the satellite or CDMA. 【The networking center only has one server, easy for upgrade (upgrading software remotely) and remote maintenance.】 【Powerful Exchange Capability】 Use the soft exchange technology, not restricted by the dedicated exchange hardware and easy for constructing network with wide coverage. 【Small audio distortion】 Audio undergoes the analog-to-digit conversion once no matter how many networking centers and exchanges are passed. 【Overall Network Management and Maintenance】 Log on remotely, to perform real-time monitoring and controlling on system resources and networking equipment. 【Based on the full IP platform, functions as network management and dispatch (e.g. inter-system monitoring, recording, etc. can be expanded easily.】 【Network Dispatcher Based on Full IP】 Dispatch all users within the network in different places through the IP network and realize perfect dispatch functions as individual call, group call, all call, include call; channel monitoring, maintenance, disconnection, forced monitoring; dynamic regrouping, channel open, call forward, plan recording and saving, tracking record.