General description – Toa N-8000 Series User Manual
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Chapter 1
GENERAL DESCRIPTION
1. GENERAL DESCRIPTION
The N-8000 Series is a packet intercom system (IP network compatible intercom) employing packet audio
technology*
1
. By connecting IP intercom exchanges (which can connect up to 16 stations per exchange),
IP stations, and various kinds of interface units to a network (LAN or WAN*
2
), an optimal system can be
constructed for in-house or wide area information communications such as duplex conversations between
stations, periodical broadcasts, and BGM broadcasts. Since up to 192 exchanges, IP stations, and various
kinds of interface units can be combined, systems of up to a total of 3072 stations can be realized. An echo
canceller*
3
and voice switch realize hands-free conversation (conversations made without using a handset at
both parties) between stations. Depending on conditions, full duplex (simultaneous two-way) conversation by
way of an echo canceller or half duplex (alternate two-way) conversation by way of a voice switch is made.
(Refer to
p. 8-2, "FULL DUPLEX AND HALF DUPLEX CONVERSATIONS."
)
In addition, The system's various interface units and modules can be used to realize a host of functions,
including contact bridging by means of contact input and output control, contact external equipment control
and timer-activated fixed-time broadcasts, connection to outside lines (central office lines), and broadcast to the
SX-2000 system. Further, the system supports two different conversation methods and is capable of operating
in master/master or master/sub configurations.
*
1
Technology related to audio transmission over a network
*
2
The fixed global IP address must be assigned to the units connected via the Internet.
*
3
A circuit that prevents acoustic feedback or echo generated when the voice output from the station's internal
speaker enters the microphone.
Warning
This is a class A product. In a domestic environment this product may cause radio interference in which case
the user may be required to take adequate measures.