Ericsson LZT-1872R1A - Manual (Page 25)

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Supervisory Mode
When a Allegra Duplex Portable is
programmed as supervisory, it is capable of handling
all normal supervisory functions.
Programmable Audio/Display
Each EDACS system has a programmable
option to handle display and audio during emergency
conditions. When an emergency occurs, the display
option can be programmed to hold the display
unchanged until the PTT button is pressed or the
emergency is cleared. The audio option, similarly,
causes the radio to remain muted until PTT is
pressed or the emergency is cleared.
Priority System Scan
This option allows the Allegra Duplex Portable
to search for a second operating system while locked
onto the control channel of the selected system. If a
second control channel is found, the radio switches to
that system. The scan frequency is programmable.
Group Options
Each EDACS trunked system uses a set of
groups. Each set allows for a home Group ID,
Dynamic Regroup/encoding, and Emergency calls. In
addition to each group ID the following options are
supported.
TX Disable-Group Option
This option prevents keying a radio on a
particular group (monitor only).
Rx Disable-Group Option
This option prevents unmuting a radio on a
particular group.
Control Channel Limits
This option provides for limited scanning of a
frequency set for a control channel. When
programmed, the radio is only capable of scanning a
subset of channels for a control channel. This is
useful in large wide area scanning systems to speed
up the scan process.
CLEANING INSTRUCTIONS
The radio can be cleaned with a damp cloth,
using a mild solution of liquid detergent and water or
with a soft cloth and furniture polish. Never use an
abrasive or a petroleum based solvent cleaner.
BATTERIES AND RECHARGING