ARMTEL IPN-8U User manual

IPN-8U Network switching
module
ARMT.665200.006UM
User Manual
Document version 14 26.30.11.120
2021
ENG

armtel.com
© Armtel [e-mail]

IPN-8U NETWORK SWITCHING MODULE
USER MANUAL
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[e-mail] © Armtel
ENG
INTRODUCTION
This User Manual applies to various versions of the IPN-8U Network switching mod-
ule ARMT.665200.006 manufactured by Armtel LLC, and is intended to familiarize the User
with the device and the procedure for its operation at the installation site.
IPN-8U Network switching module is part of decentralized digital intercom and Public
address / General alarm communication systems IPN 1.1.
Short name of the product – IPN-8U.
Maintenance personnel for the IPN-8U shall be appointed by the management at the
installation site.
The maintenance personnel shall be required to know the operating procedure of the
IPN-8U to the extent provided for by the User Manual.
Duties of the maintenance personnel shall include maintenance of the IPN-8U in ac-
cordance with this User Manual.
IPN-8U Network switching module is meet the requirements of Technical regulations
of the Customs Union TR CU 020/2011 «Electromagnetic compatibility of technical means».

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SAFETY PROVISIONS
During installation and operation of IPN-8U, observe the safety measures specified by
local regulations on electrical safety.
In order to ensure fire safety, follow the rules:
−before connecting the product to the power supply, make sure the power and
communication cables are properly insulated;
−protect the power and interface cables from damage.
To avoid electric shock, do not:
−turning on the device with damaged power and interface cables.
Do not use the product in rooms with high humidity (more than 80 %) or conductive
dust.
ATTENTION: DISASSEMBLY OF ARTICLE CONNECTED TO POWER SUPPLY IS PRO-
HIBITED!
The safety provisions for specific operations described in this manual are marked with:

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CONTENTS
INTRODUCTION .......................................................................................................................................... 1
SAFETY PROVISIONS .................................................................................................................................2
1DEVICE DESCRIPTION AND OPERATION......................................................................................4
1.1 General description ..........................................................................................................................4
1.2 Specifications...................................................................................................................................... 6
1.3 Scope of supply .................................................................................................................................8
1.4 Design ...................................................................................................................................................8
1.5 Terminal equipment, connected to Uk0-interfaces.............................................................12
1.6 Labeling ..............................................................................................................................................14
1.7 Package...............................................................................................................................................15
2INTENDED USE .....................................................................................................................................16
2.1 Operating limits...............................................................................................................................16
2.2 Preparation for operation ............................................................................................................16
2.3 Safety precautions ..........................................................................................................................17
2.4 Installation, connection and disassembly...............................................................................18
2.5 Operation...........................................................................................................................................19
2.5.1 Procedure of actions of the service personnel when using the product...................19
2.5.2 Configuration.........................................................................................................................................19
2.5.3 Functions of the product..................................................................................................................19
2.5.4 Monitoring of the product operation ........................................................................................19
2.5.5 Troubleshooting...................................................................................................................................21
3MAINTENANCE.....................................................................................................................................22
3.1 General................................................................................................................................................22
3.2 Safety precautions ..........................................................................................................................22
3.3 Product maintenance procedure...............................................................................................22
3.4 Checking the functionality of the product.............................................................................23
4REPAIR .....................................................................................................................................................24
5STORAGE ................................................................................................................................................25
6TRANSPORTATION .............................................................................................................................26
7DISPOSAL ...............................................................................................................................................27
APPENDIX A (REFERENCE) FUNCTION OF POE IN IPN-8U ......................................................28
APPENDIX B (REFERENCE) PRODUCT CONNECTION..................................................................30
B.1 IPN-8U subscriber connection cable .......................................................................................30
Б.2 Power cable.......................................................................................................................................31

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1DEVICE DESCRIPTION AND OPERATION
1.1 General description
IPN-8U is designed for use within decentralized digital intercom and Public address /
General alarm communication systems IPN 1.1 manufactured by Armtel LLC as a multifunc-
tional network switching unit which provides connection to IP-network, switching and
power supply for user terminals with ISDN and Ethernet interface.
IPN-8U is installed in telecommunication racks, cabinets located in control and office
rooms. IPN-8U operates at temperatures from minus 5 to plus 55 °С at a relative humidity
of up to 80%.
The following equipment can be connected to IPN-8U:
−digital subscriber units and ACM modules with Uk0-interface, produced by
LLC Armtel;
−digital subscriber IP units with Ethernet-interface and ACM-IP modules pro-
duced by LLC Armtel;
−SIP telephone sets and other equipment of the third party manufacturers,
fed by PoE according to standard IEEE 802.3af-2003 Class 0;
−digital recording units IP with Ethernet-interface;
−data transmission equipment with interface Fast Ethernet (10/100Base-T).
IPN-8U contains firmware and configuration data that enables to connect up to eight
digital subscriber units with Uk0-interface to IP network. Connected to IPN-8U digital sub-
scribers can communicate with each other and with other subscribers of IPN 1.1 decentral-
ized system directly, without using allotted central exchange or server, and also manage
connection priorities, communication and display modes.
The appearance of IPN-8U with overall dimensions is illustrated at Figure 1.

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Figure 1 – Appearance and dimensions of IPN-8U
Note -The manufacturer reserves the right to change the appearance of the prod-
uct, which does not affect the installation dimensions and operation of the product.
Incorporated into IPN1.1 decentralized communication, IPN-8U module can provide
the following functions:
−connection of up to eight (8) digital subscriber units with Uk0-interface to a
distance of up to 6 km via a copper cable line;
−power supply of subscriber units via Uk0-interface;
−connection of up to four IP-devices or network equipment with interface
Ethernet 100BaseT and switching of IP-connections between them;
−power supply of subscriber IP-devices by PoE function;
−storing of settings and configuration data of the connected digital subscrib-
er units with Uk0-interface;
−free programming of keys with indication on all devices connected to
Uk0-interfaces;

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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;
−iIndication of busy subscriber, incoming and outgoing calls, second incom-
ing call, unanswered call on the keys of the digital units with Uk0-interface;
−activation of built-in relays of DW\DW Ex units and ACM control lines
(except for group calls);
−voice connections in “half-duplex” mode between digital subscriber units with
Uk0-interface and duplex subscribers in case of connection via SIP protocol;
−registration of calls using certified equipment and software;
−built-in self-diagnostics and remote administration via HTML – interface;
−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:
−Uk0 – for connection of digital subscriber units manufactured by LLC Armtel.
−Ethernet with PoE – for connection of the module and IP-subscribers to
IP-network.
−Uk0 interface also provides:
−distance from IPN-8U to the subscriber up to 6 km;
−bandwidth – 6,8 kHz;
−«phantom» power supply of the subscriber unit using PoU (Power-over-U)
function with load amperage of up to 300 mА.
Power consumption of IPN-8U:
−IPN-8U with disconnected Uk0-interfaces and Ethernet ports – 6,4 W;
−IPN-8U with connected DIS via Uk0-interface, without “phantom” power
supply and disconnected 4 Ethernet ports – 7,5 W;

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−IPN-8U with connected 4 Ethernet ports and disconnected subscribers
on Uk0-interface – 8,5 W;
−IPN-8U with connected 8 DIS units via Uk0-interface, without “phantom”
power supply and connected 4 Ethernet ports – 9,1 W.
−IPN-8U is a PoE power supply source (injector), which meets the requirements
of standard PoE IEEE 802.3af-2003 Class 0 (see Appendix А). Maximum pow-
er, given by1 Ethernet port when using the PoE technology is 15.4 W.
Maximum power on one port of Uk0-interface when using «phantom» power supply
is 15 W.
Main technical and operational characteristics of IPN-8U are given in Table 1.
Table 1 – Main technical and operational characteristics
Parameter Value
Rated voltage, V
-48
Supply voltage range, V from-36 to -60
Maximum power consumption of IPN-8U (without PoU, PoE), max, W
9,1
Maximum load current of each Uk0port, max, mA 300
Maximum distance to a subscriber unit, km 6,0
Number of ISDN Uk0 interfaces 8 ports with PoU
Size of integrated switch Fast Ethernet (100 Mb/s) 4 ports with PoE
Feeding unit class by standard PoE IEEE 802.3af-2003 Class 0
Nominal output voltage by Ethernet line, V - 48
The maximum output power of the IPN – 8U PoE supply device over
the Ethernet line, according to the PoE class, no more, W
15,4
Atmospheric pressure, kPa from 84 to106,7
Electrical safety class by IEC 61140:2016 III
Protection rate provided by shells IP20
Relative air humidity at 25 °С, % Up to 80
Ambient air temperature range, ºC from - 5 to + 55
Overall dimensions, max, mm 482,6×232×43,6 (19" 1U)
Weight (without connection cable of IPN-8U subscribers), max, kg 2,5

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The product ensures connection / disconnection of subscriber units without power
off and necessity to reboot.
To connect subscriber devices with Uk0-interface to the IP network, the subscriber
connection cable is used, which is included into the scope of the module supply. The ex-
ternal appearance of the subscriber connection cable is given in Appendix B.
1.3 Scope of supply
The scope of supply is given in Table 2.
Table 2 – Scope of supply
Identification Name
Quantity,
pcs.
Note
ARMT.665200.006
IPN-8U Network switching module
1
ARMT.665200.006.005
IPN-8U subscriber connection cable
1
Connector MSTB 2,5 НС/ 3-STF-5,08
1
Operational documentation
ARMT.665200.005PP
IPN-8U Network switching module
Product Passport
1
ARMT.665200.005UM
IPN-8U Network switching module
User Manual
1
1.4 Design
Each switching module IPN-8U is a compact switch with eight subscriber kits with
Uk0-interface, and four FastEthernet ports for connecting to IP network. All Uk0-interfaces
are equipped with Power-over-U function – “phantom” power supply of subscribers with
automatic overload protection, which allows connecting digital subscriber devices by one
pair of wires for a distance of up to several kilometers, depending on the cable cross sec-
tion. The power supply function on each Uk0-interface is executed by a program, accord-
ing to the configuration data of IPN-8U. Connection of subscriber lines of Uk0-interfaces is
performed by screw terminals with a cross section of up to 2.5 mm2.
Ports of inbuilt FastEthernet switch are equipped with PoE function in compliance
with IEEE 802.3af Class 0, and can be used for direct connection of IP subscriber devices.
IPN-8U module is housed in 19" metal enclosure with the height of 1HU. On the front
panel there are four FastEthernet ports, fuse holders, sockets for power supply and con-
nection of digital subscribers. The two-color indicators located ibid represent user interfac-
es status, operation mode of the central processor, integrity of fuses and power circuits.
The available status modes of IPN-8U indicators depending on the mode of its operation,
are shown in Table 3.
IPN-8U module is fed from the external power supply source 48 VDC. The grounding
terminal for the enclosure is on the power supply connector.

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Figure 2 illustrates IPN-8U front panel with monitoring and control means.
Figure 2 – Front panel of IPN-8U module
Note – All LEDs on the front panel have two colors (red/green).
The Figure 2 shows:
−8х PoU – socket type D-SUB for the cable of subscribers connection;
−POWER – 3-contact plug «-48 0V GND» for 48 V power supply and the enclo-
sure grounding;
−FUSES – block of fuses in subscriber power supply circuits:
−PoU1 1-4, PoU2 5-8 – fuses and indicators for fuses state in power supply
PoU ports;
−PoE 1-4 – fuse and indicator of the fuse state in power supply PoU ports;
−MAIN – indicators to monitor the secondary DC power supply source 3,3 V
and 5 V;
−CPU – indicator of CPU state; blinking green color refers to normal operation
mode;
−RES – reset key;
−8×PoU 1…8 – indicator of digital Uk0 interfaces and subscriber units connect-
ed to them, two-color LEDs;
−4×PoE Ports 1…4 – sockets type RJ-45, ports 100BaseT Fast-Ethernet with PoE
for connection to IP-network or direct connection of IP subscriber units. Each
socket has two indicators of operation mode:
−orange (on the left) –PoE voltage indicator for power supply of the connected
unit;
−green (on the right) – indicator of Ethernet-connection and its activity.
Figure 3 shows fragment of IPN-8U main board with position of control elements.

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Figure 3 – Fragment of the main board
The Figure 3 shows:
−«S3» – block of keys for PoU (phantom power) supply for each of U-
interfaces. Numbering of ports on the switch box starts from the back wall of
IPN-8U enclosure. At present the switches are not used, because power sup-
ply mode on U-interface line is controlled by the configuration data of IPN-
8U module;
−«S2» – functional key for cleaning data. If you push and hold «S2» on the op-
erating unit, then in 5 seconds the network setting and the user data will be
returned to the default settings from the memory file «default.par». After re-
leasing «S2», automatic loading of new parameters will occur;
−«X2» – JTAG connector for initial programming at the manufacturer;
−«X5» − COM-port for connection of diagnostics PC;
−«X4» – functional jumper for coming into loading mode. If contacts of «X4»
are closed during power ON or restart, then the loading program will start.
The mode of loading program is indicated by alternate color changing of the
ports 1-4 and 5-8 indicators from red to green. At present this mode is not
used;
−«J1» – jumper from recording, this bridge is installed at the manufacturer be-
tween the first (upper) contact of the «X1» socket and the second (lower)
contact of «X3». The jumper is removed only during initial loading of embed-
ded software at the manufacturer;

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−«Х1» – functional jumper to clean central processor memory, it is used only
for initial programming at the Manufacturer.
ATTENTION! CLEANING OF EMBEDDED CENTRAL PROCESSOR MEMORY RE-
SULTS IN FULL PRODUCT INABILITY!
Simplified block-diagram of IPN-8U is illustrated at Figure 4.
Figure 4 – Block-diagram of IPN-8U
IPN-8U operation is controlled by central processor (CPU) ARM9, with basic software
in its embedded memory. Embedded software, configuration data files and HTML-pages of
WEB-interface are stored in non-volatile flash memory.
Two sets of Infineon chips are connected to the processor via IOM-2 lines, four Uk0-
interfaces each. Ethernet interface of the processor is connected to embedded Ethernet
switch chip, four of which are connected to the front panel of IPN-8U. Each of these net-
work interfaces is equipped with PoE injector (PSE), which provides power to the network
devices connected to it.
The integrated power distribution scheme includes separate fuses for phantom power
circuits of U-interface units and PoE injectors, providing a second line of overload protec-
tion in subscriber lines.

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1.5 Terminal equipment, connected to Uk0-interfaces
IPN-8U provides for connection and operation of up to eight (8) digital subscriber
devices with Uk0-interfaces produced by LLC Armtel. The subscribers connected to IPN-8U
can communicate directly with each other, as well as with other subscribers via IP-network.
Types and main characteristics of digital subscriber units manufactured be LLC
Armtel, to be connected to Uk0-interfaces of IPN-8U module:
−DIS desktop call station.
DIS call station is the subscriber equipment of simplex voice communication
system and is designed for use in premises with normal operation conditions
(offices and control rooms). The unit can be desk-mounted, or panel-mounted,
and has versions with 8 to 32 programmable functional keys with LED indication.
DIS unit can be additionally equipped with up to four expansion units with
number of keys from eight to 48 each.
−DW weatherproof call station;
DW call station is the subscriber equipment of simplex voice communication
system and is designed for use in premises with harsh operation conditions
(outdoors, under influence of precipitations, dust, within low temperature condi-
tions and high noise levels). DW unit consists of a speaker, microphone and re-
lay for switching of external signaling devices, such as siren or light signal de-
vice. incorporated into IPN communication system, can be applied DW units
equipped with from one to three two-way toggle modules with total connec-
tions of up to six, as well as with a handset with suspension.
−DWEx digital loud-speaking explosion proof call station;
DW Ex call station is the subscriber equipment of simplex voice communication
system and is designed for use in explosive areas and premises with harsh oper-
ation conditions (outdoors, under influence of precipitations, dust, within low
temperature conditions and high noise levels). DWEx unit consists of a speaker,
microphone and relay for switching of external signaling devices, such as siren
or light signal device. Incorporated into IPN communication system, can be ap-
plied DWEx units equipped with from one to three two-way toggle modules
with total connections of up to six, as well as with handset with suspension.
Additionally, DW unit can have amplifier 25/50 W to connect the external loud-
speaker.

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−ACM analogue subsystems module
ACM analog subsystems module is designed for interfacing with analogue
communication systems and alarms of various types, as well as for interaction
with automatic and signaling devices. It provides connection to IPN system of
external devices via a bidirectional analogue LF interface line and eight discrete
I / O lines. ACM module is used to connect amplifiers, load switching, communi-
cation with other public address systems, with radio network devices via radio
connection module, control of the switching of signaling devices and external
alarm systems, automatic playback of pre-recorded messages by commands
from external alarm systems, etc.
Functional area and configuration parameters of subscriber units, as well as key func-
tions, are determined in the configuration data for IPN-8U module and correspond to the
capabilities of other subscribers of IPN system described in the document "Decentralized
loud-speaking communication system IPN 1.1. User Manual. Part 2. Administrator Manual”
RMLT.465300.001 execpt for :
−storing and playback of pre-recorded sound fragments;
−programmable keys of volume control of the unit;
−switching of ACM lines at group call.

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1.6 Labeling
On the side fasteners of the housing IPN-8U is placed bilingual nameplate, made by
laser engraving.
The nameplate contains the following information:
−name, trademark and reference information of the manufacturer;
−product name and description;
−temperature range;
−degree of protection provided by enclosures (IP code);
−rated supply voltage value;
−commercialization mark for products on the market of Customs Union member states;
−electrical class III mark according GOST IEC 61140-2012;
−special waste disposal mark;
−product serial number;
−date of manufacture.
The serial number and MAC-address are indicated on the front panel of the product.
The serial number and MAC-address are unique for each product.

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1.7 Package
IPN-8U with the documents, which come with the supply package, is packed in con-
sumer package (cardboard box).
A label in Russian language and English language is glued onto the consumer pack-
age, said label containing the following inscriptions and symbols:
−product name and description;
−name, trademark and reference information of the manufacturer;
−handling symbols according to GOST 14192-96 and CU TR 005/2011;
−commercialization mark for products on the market of Customs Union
member states;
−serial number and date of manufacture.
The package is made according to the drawings of the product manufacturer and en-
ables storage of the IPN-8U, provided requirements set in Section 5 are met.
For shipment of the IPN-8U from the manufacturer, consumer package contents are
placed in the package place, which ensures protection from mechanical damage, direct in-
gress of atmospheric precipitation, dust and solar radiation during transportation.

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2INTENDED USE
The product is designed for continuous 24-hour a day operations. After commission-
ing, the product does not require operator intervention, unless:
−maintenance;
−product configuration changes.
Maintenance personnel must be strictly guided by this document in compliance with
safety regulations.
The product along with the operational documentation is delivered to the customer
in packaged form.
2.1 Operating limits
2.1.1 IPN-8U shall be used under exposure factors and ambient parameters
which do not exceed permissible values given in Table 1.
2.1.2 The requirements for operating conditions and the choice of the place of
installation given in this document take into account the most typical factors that af-
fect the operation of IPN-8U.
Factors that cannot be predicted, estimated or verified, and which the manufacturer
was unable to factor in during development may exist or arise during operation at the op-
erating facility.
In the event of such factors, find another operating site where said factors do not ex-
ist or do not affect operation of the product.
2.2 Preparation for operation
Preparation of IPN-8U for operation should be performed by Manufacturer author-
ized representatives or qualified personnel with completed training to operate Armtel
product. The main preparation for further product use is carried out during installation and
connection. Preparation of IPN-8U for operation includes the following activities:
1. Remove the IPN-8U and the connection cables from the shipping container.
2. Remove the IPN-8U and the connection cables from the individual container.
3. Check the completeness of the IPN-8U in accordance with the product passport
4. Visual inspection of unit for damages (cracks, dents, etc.).
5. Installation of IPN-8U module on site in 19" cabinet (rack).
6. Installation of IP-address for IPN-8U.

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During production, each IPN-8U is assigned the same default IP address:
192.168.100.10, subnet mask: 255.255.255.0. Since devices with the same IP addresses are
not allowed on the same network, it is necessary to set the network parameters for each
IPN-8U before being connected to the network.
To this end, please, observe the following points:
1. Disconnect all IP-devices and network equipment from integrated FastEthernet
switch of IPN-8U.
2. Use any port of integrated FastEthernet switch of IPN-8U for direct connection
to service computer.
3. Supply 48 V to the socket of IPN-8U and wait until loading is completed.
4. Set up the network parameters of IPN-8U with using the service computer con-
nected to it.
5. Disconnect the service computer; connect earlier disconnected IP-devices and
the network equipment.
6. Write the installed IP address in the product passport.
2.3 Safety precautions
During installation and operation, observe safety precautions laid out in “Occupation-
al safety rules when operating electrical installations” when working with electrical receiv-
ers with voltage of up to 1000 V.
To avoid electric shock, do not:
−turning on the device with damaged power and interface cables or con-
nectors;
−connecting and disconnecting sockets and plugs of auxiliary units is allowed
only when the Ethernet cable or power cable is disconnected.
ATTENTION!! DISASSEMBLY OF THE PRODUCT CONNECTED TO THE POWER
SUPPLY IS STRICTLY PROHIBITED!
Do not use the product in rooms with high humidity (more than 80 %) or conductive
dust.
In order to ensure fire safety, follow the following rules:
−before connecting the product to the power supply, make sure the power
and communication cables are properly insulated;

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−protect power and communication cables from damage.
2.4 Installation, connection and disassembly
2.4.1 The installation of the product is usually performed after the acceptance of the
IP network.
The product is installed in a 19" cabinet (rack) using a set of mounting elements.
Latch the connection cable to lock it when mounted on DIN-rail.
2.4.2 Connection of IPN-8U module should be performed as follows:
1. Ensure that the power switch on the power supply is in OFF position.
2. Connect any of «4×PoE Ports 1 ... 4» IPN-8U sockets to the network equipment
with Ethernet interface cable.
3. Connect subscriber units to the terminal block, and connect the subscriber con-
nection cable to the socket on the front panel of the IPN-8U. The appearance of
the subscriber connection cable is shown in Figure B. 1. The purpose of the ter-
minal block terminals is shown in Table B. 1.
4. Connect the power cable to POWER socket of IPN-8U (see Figure 2), and then to
the power supply. Pin 3 of the power cable connector must be connected to the
common ground bus of the cabinet (rack). If necessary, connect the functional
grounding to the terminal located on the rear wall of the housing
5. After the power is turned ON, the firmware is downloaded and the IPN-8U is ini-
tialized. At this time, CPU indicator is not lit.
6. When the download is completed, CPU indicator starts flashing evenly, which
means that IPN-8U goes into operation.
In the passport, make notes about the place and time of installation of the IPN-8U.
2.4.3 Dismantle the IPN-8U in the following order:
1. Make sure that the power supply power switch is in the off position.
2. Disconnect the power cable from the power supply, and then from the POWER
connector.
3. Disconnect the subscriber devices from the terminal block of the IPN-8U sub-
scriber connection cable.
4. Disconnect the terminal block of the connection cable from the DIN rail.
5. Disconnect the IPN-8U from the network equipment.