IPN-8U NETWORK SWITCHING MODULE
USER MANUAL
page 6/32
armtel.com
© Armtel
ENG
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switching of connected digital subscriber units with
Uk0-interface between themselves and other subscribers of IPN communi-
cation system in simplex mode according to configuration;
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iIndication of busy subscriber, incoming and outgoing calls, second incom-
ing call, unanswered call on the keys of the digital units with Uk0-interface;
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activation of built-in relays of DW\DW Ex units and ACM control lines
(except for group calls);
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voice connections in “half-duplex” mode between digital subscriber units with
Uk0-interface and duplex subscribers in case of connection via SIP protocol;
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registration of calls using certified equipment and software;
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built-in self-diagnostics and remote administration via HTML – interface;
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indication for subscriber status of U-interfaces and Ethernet ports, servicea-
bility of fuses and power circuits, operating modes of the central processor
of IPN-8U module using two-color LED indicators on the front panel.
Detailed description of the functional area for IPN-8U and its programming method
are given in operational documents for IPN 1.1 system, which includes IPN-8U.
1.2 Specifications
IPN-8U has following interfaces:
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Uk0 – for connection of digital subscriber units manufactured by LLC Armtel.
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Ethernet with PoE – for connection of the module and IP-subscribers to
IP-network.
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Uk0 interface also provides:
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distance from IPN-8U to the subscriber up to 6 km;
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bandwidth – 6,8 kHz;
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«phantom» power supply of the subscriber unit using PoU (Power-over-U)
function with lo
ad amperage of up to 300 mА.
Power consumption of IPN-8U:
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IPN-8U with disconnected Uk0-interfaces and Ethernet ports – 6,4 W;
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IPN-8U with connected DIS via Uk0-interface, without “phantom” power
supply and disconnected 4 Ethernet ports – 7,5 W;