This Zenitel IP speaker features a 10W Class D amplifier, powered
over PoE. This means that the speaker is capable of delivering more than
120dB, depending on the signal input. The Long Horn Variant increases
SPL and directivity. This speaker is best used in environments where
speakers must be placed at distance from the intended listener, and
installation space is less of a concern.
With IP, the system is able to monitor and address each speaker
individually. By moving the amplifier from a central unit out to the
speaker itself, the need for a central amplifier unit with conventional
speaker loops is eliminated. This makes the system highly scalable, and
adding another speaker is easy to do.
Whilst conventional speaker loops are not used, the speakers can
still be divided into groups. These zones can now extend over networks
or span the Internet. To provide maximum availability, the speaker
comes with advanced supervision functions.
The built-in microphone enables intelligent features such as
Self-checking, and Automatic Volume Control. It also enhances what is
traditionally a broadcast-only medium adding Half Duplex speech, and
Ambient Listen functions. Self-checking will detect whether there are
any faults in the network or speaker electronics. The status of the
speaker is reported to the central unit as well as to 3rd-party
management systems using SNMP or Syslog. The speakers can also be
discovered, receive messages, and use Talkback direct to a VMS over
ONVIF.
The speaker has a built-in web interface for status information,
control, and upgrade. It is easy to install and maintain. In addition,
there are possibilities where broadcasts can be logged in detailed
reports.
