Hytera PD70X Series, Руководство по планированию систем

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Hytera DMR System Planner
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DMR features. When both slots are occupied, the subscriber will have an impolite
transmission of Priority Interrupt command to increase its success rate. If the
interruption fails, the system will give the prompt “Channel busy” or a request for
random hold off.
After Priority Interrupt command is transmitted, services except call back will be
transmitted in the designated Tx slot under Pseudo Trunk. The Call Back Priority
Interrupt will be transmitted in the call-receiving slot.
There are six means of Priority Interrupt:
Interrupt by shortcuts: To transmit this command via a programmable key to interrupt
the on-going call on the channel.
Call Back Priority Interrupt: When receiving a call, the user is allowed to interrupt the
call to call back by pressing PTT key.
Message Priority Interrupt: To enable Priority Interrupt feature by message, in order
to interrupt the ongoing call and send the message.
Caution: Same as short message, GPS message can also trigger Message Priority
Interrupt provided that the parameter of GPS Revert Channel is enabled. However,
it is not suggested to set this command in GPS Revert Channel, so that normal
communications on the channel will not be disturbed.
Emergency Priority Interrupt: To ensure the timely and uninterrupted emergency
alarm, users are allowed to interrupt the active call by Emergency Alarm.
Radio Disable Priority Interrupt: When the channel is busy, the subscriber is allowed
to transmit the Radio Disable command to trigger the interruption to the ongoing call,
so as to finish the disabling operation.
All Call Priority Interrupt: When the channel is busy, the subscriber is allowed to
transmit the All Call request to trigger the interruption to the ongoing call via the
command, in order to finish the All Call request.
To use Priority Interrupt feature normally, users need to configure its related
parameters at TX/RX end properly according to actual requirements. Priority
Interrupt, a channel-specific feature, is only operable on the channel which enables
it. Besides enabling the corresponding Priority Interrupts for different uses, you also
have to select Priority Interrupt Encode and Priority Interrupt Decode options for the
channel you use.
To carry out Priority Interrupt function, you need to set parameters for the
interrupting subscriber and the interrupted one respectively.