ARMTEL DW User manual

DW Weatherproof Digital
Call Station
RMLT.465311.002UM
User Manual
Document version 15
26.30.23.000
2021

armtel.com
© Armtel [e-mail]

DW Weatherproof Digital Call Station
User Manual
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[e-mail] © Armtel
INTRODUCTION
This User Manual is intended for introducing DW Weatherproof Digital Call Station
RMLT.465311.002 manufactured by Armtel LLC, Russia to the User.
DW Weatherproof Digital Call Station is the subscriber equipment to use at industrial
and transportation enterprises within digital Intercom and Public Address /General Alarm
(PA/GA) communication systems DCN and IPN manufactured by Armtel, Russia.
DW is designed for outdoor use at industrial and transport facilities under harsh
operating conditions including/ or for areas with high humidity and noise levels, dirt or dust
levels.
Short name of the product – DW.
Maintenance personnel for DW shall be appointed by the management at the
installation site.
The maintenance personnel shall be required to know the operating procedure of DW
to the extent provided for by the User Manual.
Duties of the maintenance personnel shall include maintenance of DW in accordance
with this User Manual.
ATTENTION! In connection with systematic work to improve the design and
manufacturing technology, it is possible some discrepancy between the description and the
supplied product, which does not affect its operation or maintenance.

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User Manual
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SAFETY PROVISIONS
During installation and operation of DW, observe safety precautions laid out in local
regulations on electrical safety.
To avoid electric shock, do not:
−operate the product with a damaged power or communication cable;
−the interface cable can be connected and disconnected if the power cable is
disconnected.
ATTENTION! NEVER DISMANTLE THE PRODUCT CONNECTED TO MAINS.
ATTENTION!THE PRODUCT IS NOT DESIGNED FOR “PHANTOM” POWER SUPPLY.
Do not use the product in rooms with 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;
−protect power and communication cables from damage.
The safety provisions for specific operations described in this manual are marked with:

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User Manual
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CONTENTS
INTRODUCTION.................................................................................................................................................................... 1
SAFETY PROVISIONS........................................................................................................................................................... 2
CONTENTS .............................................................................................................................................................................. 3
1 DESCRIPTION AND OPERATION................................................................................................................................. 5
1.1 Product description and operation .................................................................................................................. 5
1.1.1 Features ............................................................................................................................................................. 5
1.1.2 Main specifications......................................................................................................................................10
1.1.3 Scope of supply ............................................................................................................................................12
1.1.4 Design...............................................................................................................................................................13
1.1.5 DW case...........................................................................................................................................................15
1.1.6 DW cover.........................................................................................................................................................16
1.1.7 Labeling ...........................................................................................................................................................18
1.1.8 Package............................................................................................................................................................18
1.2 Description and operation of product components................................................................................19
1.2.1 General information....................................................................................................................................19
1.2.2 External microphone with a push-to-talk key...................................................................................19
1.2.3 Two-way toggle module ...........................................................................................................................20
1.2.4 Dial pad (keypad module) ........................................................................................................................20
1.2.5 Pushbuttons (direct call key module)...................................................................................................20
1.2.6 Holder with reed switch and handset ..................................................................................................21
1.2.7 «SOS» and «INFO» Pushbuttons............................................................................................................21
2 INTENDED USE ................................................................................................................................................................22
2.1 Operating limits .....................................................................................................................................................22
2.3 Preparation for use ...............................................................................................................................................23
2.4 Installation, connection and dismantling .....................................................................................................24
2.4.1 Installation DW..............................................................................................................................................24
2.4.2 Connection DW.............................................................................................................................................25
2.4.3 Dismantling DW............................................................................................................................................26
2.5 Operation .................................................................................................................................................................27
2.5.1 Configuration.................................................................................................................................................27
2.5.2 Product operating modes.........................................................................................................................27
2.5.3 Troubleshooting...........................................................................................................................................29

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3 MAINTENANCE................................................................................................................................................................30
3.1 General guidelines ................................................................................................................................................30
3.2 Safety precautions.................................................................................................................................................30
3.3 Maintenance procedure......................................................................................................................................30
3.4 Checking the functionality of the product...................................................................................................31
4 REPAIR ..............................................................................................................................................................................32
5 STORAGE............................................................................................................................................................................33
6 TRANSPORTATION.........................................................................................................................................................33
7 DISPOSAL...........................................................................................................................................................................33
APPENDIX А(reference) External appearance of DW...........................................................................................34
APPENDIX B (reference)Connection DW .............................................................................................................37
APPENDIX C (reference) Installation and connection of the external microphone..............................39

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1 DESCRIPTION AND OPERATION
1.1 Product description and operation
1.1.1 Features
DW Weatherproof Digital Call Station is the subscriber equipment to use at industrial
and transportation enterprises within digital Intercom and Public Address /General Alarm
(PA/GA) communication systems DCN and IPN manufactured by Armtel, Russia.
DW is designed for outdoor use at industrial and transport facilities under harsh
operating conditions including/ or for areas with high humidity and noise levels, dirt or dust
levels.
DW has a modular design, composed of robust and chemically resistant enclosure
which can locate from 1 to 3 functional modules and an auxiliary integrated amplifier. The
version of the unit may differ depending on modules and auxiliary amplifier installed.
Possible versions of DW unit are given in Table 1. The external appearance of DW functional
modules are shown in 1.2.
The design and material of the DW housing have impact and chemical resistance. The
DW housing is made of the specified TETRADUR F4401-2004 fiberglass-reinforced polyester
resin, which is resistant to solar ultraviolet radiation.
To ensure the protection degree IP66 of DW unit, rubber seals are placed under the
cover, loudspeaker and microphone, two-way toggles and cable glands. Key modules,
keypad modules and modules "SOS" and "INFO" are also sealed with rubber gaskets.

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Table 1 – Versions of DW
Identification
Name
(with the number
programmable
connections / functions)
Interchangeable modules
Weight,
no more
then, kg
RMLT.465311.002
DW for 2 connections /
functions with 25 W
amplifier
−Two-way toggle 1 pcs
−Plug 2 pcs;
−25 W amplifier 1 pcs
5,6
RMLT.465311.002-01
DW for 4 connections /
functions with 25 W
amplifier
−
Two-way toggle 2 pcs;
−Plug 1 pcs;
−25 W amplifier 1 pcs
5,7
RMLT.465311.002-02
DW for 6 connections /
functions with 25 W
amplifier
−Two-way toggle 3 pcs;
−25 W amplifier 1 pcs 5,8
RMLT.465311.002-03
DW for 8 connections /
functions with 25 W
amplifier
−Pushbuttons 1 pcs;
−Plug 2 pcs;
−25 W amplifier 1 pcs
5,6
RMLT.465311.002-04
DW for 16 connections /
functions with 25 W
amplifier
−Pushbuttons 2 шт;
−Plug 1 pcs;
−25 W amplifier 1 pcs
5,7
RMLT.465311.002-05
DW for 24 connections /
functions with 25 W
amplifier
−
Pushbuttons 3 pcs;
−25 W amplifier 1 pcs 5,8
RMLT.465311.002-06
DW for 2 connections /
functions with 25 W
amplifier, with dial pad and
handset
−
handset1 pcs;
−Two-way toggle 1 pcs;
−Dial pad1 pcs;
−holder with reed switch 1 pcs;
−25 W amplifier 1 pcs
6,2
RMLT.465311.002-07
DW for 8 connections /
functions with 25 W
amplifier, with dial pad and
handset
−handset1 pcs;
−Pushbuttons 1 pcs;
−Dial pad1 pcs;
−holder with reed switch 1 pcs;
−25 W amplifier 1 pcs
6,2
RMLT.465311.002-08
DW with 25 W amplifier,
with dial pad and handset
−
handset1 pcs;
−Dial pad1 pcs;
−holder with reed switch 1 pcs;
−Plug 1 pcs;
−25 W amplifier 1 pcs
6,1
RMLT.465311.002-09
DW for 10 connections /
functions with 25 W
amplifier
−Two-way toggle 1 pcs;
−Pushbuttons 1 pcs;
−Plug 1 pcs;
−25 W amplifier 1 pcs
5,7

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Table 1 (continuation)
Identification
Name
(with the number
programmable
connections / functions)
Interchangeable modules
Weight,
no more
then, kg
RMLT.465311.002-10
DW for 18 connections /
functions with 25 W
amplifier
−Two-way toggle 1 pcs;
−Pushbuttons 2 pcs;
−25 W amplifier 1 pcs
5,8
RMLT.465311.002-11
DW for 12 connections /
functions with 25 W
amplifier
−Two-way toggle 2 pcs;
−Pushbuttons 1 pcs;
−25 W amplifier 1 pcs
5,8
RMLT.465311.002-12
DW на 2 connections /
functions with 25 W
amplifier and dial pad
−
Two-way toggle 1 pcs;
−Dial pad1 pcs;
−Plug 1 pcs;
−25 W amplifier 1 pcs
5,7
RMLT.465311.002-13
DW for 4 connections /
functions with 25 W
amplifier and dial pad
−
Two-way toggle 2 pcs;
−Dial pad1 pcs;
−25 W amplifier 1 pcs
5,8
RMLT.465311.002-14
DW for 8 connections /
functions with 25 W
amplifier and dial pad
−Pushbuttons 1 pcs;
−Dial pad1 pcs;
−Plug 1 pcs;
−25 W amplifier 1 pcs
5,7
RMLT.465311.002-15
DW for 10 connections /
functions with 25 W
amplifier and dial pad
−
Two-way toggle 1 pcs;
−Pushbuttons 1 pcs;
−Dial pad1 pcs;
−25 W amplifier 1 pcs
5,8
RMLT.465311.002-16
DW for 16 connections /
functions with 25 W
amplifier and dial pad
−
Pushbuttons 2 pcs;
−Dial pad1 pcs;
−25 W amplifier 1 pcs
5,8
RMLT.465311.002-17
DW for 2 connections /
functions
−Two-way toggle 1 pcs;
−Plug 2 pcs
5,2
RMLT.465311.002-18
DW for 4 connections /
functions
−Two-way toggle 2 pcs;
−Plug 1 pcs
5,3
RMLT.465311.002-19
DW for 6 connections /
functions
−Two-way toggle 3 pcs
5,4
RMLT.465311.002-20
DW for 8 connections /
functions
−
Pushbuttons 1 pcs;
−Plug 2 pcs
5,2
RMLT.465311.002-21
DW for 16 connections /
functions
−Pushbuttons 2 pcs;
−Plug 1 pcs
5,3
RMLT.465311.002-22
DW for 24 connections /
functions
−Pushbuttons 3 pcs
5,4

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Table 1 (continuation)
Identification
Name
(with the number
programmable
connections / functions)
Interchangeable modules
Weight,
no more
then, kg
RMLT.465311.002-23
DW for 2 connections /
functions с with dial pad
and handset
−handset1 pcs;
−Two-way toggle 1 pcs;
−Dial pad1 pcs;
−holder with reed switch 1 pcs
5,8
RMLT.465311.002-24
DW for 8 connections /
functions с with dial pad
and handset
−handset1 pcs;
−Pushbuttons 1 pcs;
−Dial pad1 pcs;
−holder with reed switch 1 pcs
5,8
RMLT.465311.002-25
DW с with dial pad and
handset
−handset1 pcs;
−Dial pad1 pcs;
−holder with reed switch 1 pcs;
−Plug 1 pcs
5,7
RMLT.465311.002-26
DW for 10 connections /
functions
−Two-way toggle 2 pcs;
−Dial pad1 pcs
5,3
RMLT.465311.002-27
DW for 18 connections /
functions
−Pushbuttons 2 pcs
−Two-way toggle 1 pcs
5,4
RMLT.465311.002-28
DW for 12 connections /
functions
−Pushbuttons 1 pcs
−Two-way toggle 2 pcs
5,4
RMLT.465311.002-29
DW for 2 connections /
functions with dial pad
−
Two-way toggle 1 pcs;
−Dial pad1 pcs;
−Plug 1 pcs
5,3
RMLT.465311.002-30
DW for 4 connections /
functions with dial pad
−Dial pad1 pcs
−Two-way toggle 2 pcs
5,4
RMLT.465311.002-31
DW for 8 connections /
functions with dial pad
−
Pushbuttons 1 pcs;
−Dial pad1 pcs;
−Plug 1 pcs
5,3
RMLT.465311.002-32
DW for 10 connections /
functions with dial pad
−
Two-way toggle 1 pcs;
−Dial pad1 pcs;
−Pushbuttons 1 pcs
5,4
RMLT.465311.002-33
DW for 16 connections /
functions with dial pad
−Pushbuttons 2 pcs;
−Dial pad1 pcs
5,4
RMLT.465311.002-34
DW with «SOS» and «INFO»
modules, with 25 W
amplifier
−
SOS Pushbutton 1 pcs;
−INFO Pushbutton 1 pcs;
−Information module 1 pcs;
−25 W amplifier.
5,7
RMLT.465311.002-35
DW with «SOS» and «INFO»
modules
−SOS Pushbutton 1 pcs;
−INFO Pushbutton 1 pcs;
−Information module 1 pcs
5,3

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DW can operate only under control of the central exchange of the communication
systems DCN or subscriber module IPN-8U, and it is unable to perform any functions without
connection to the communication system via the digital Uk0-interface.
Being incorporated in the digital communication systems, DW can provide the following
functions (refer to Operating limits 2.1.2):
−Two-way intercom communication in simplex mode using integrated speaker
and microphone, or external microphone with push-to-talk key and direct keys
with LED indication.
−Loud-speaking voice communication in “half-duplex” mode with duplex devices
like telephone sets.
−Duplex communication with duplex devices like telephone sets in versions
RMLT.465311.002-06, -07, -08, -23, -24, -25 using a dial pad and a handset.
−Duplex loud-speaking function with the integrated speaker and microphone.
−Group call using the programmed keys or keypad.
−Public address and General Alarm voice announcement for multiple zones.
−Launch and transmission of alarm signals, alerts and other pre-recorded messages
for individual subscribers and a group of subscribers.
−Processing of connections priority with indication of the second incoming call.
−Indication of the subscribers’ state on direct keys (incoming and outgoing
connections, busy signaling, second incoming call and unanswered call).
−Indication of a malfunction on the call keys of the associated device when the
communication with this unit is missing.
−Transmission of incoming audio messages through an auxiliary amplifier and an
external speaker.
−Control of an external alarm device with the built-in relay.
The complete structure of DW functions performed, their implementation and
configuration features may differ depending on the type of the communication system, its
configuration and software version. DW programming is executed using the DCN, IPN
system administrator's software. Description of the features of DW application in the systems
IPN 1.1 and DCN, as well as programming techniques are given in the Administration manual
for these systems.

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1.1.2 Main specifications
Main specifications and performance characteristics for DW are given in Table 2.
Table 2 – Main specifications and performance characteristics
Parameter Value
Rated supply voltage, V
-48
Supply voltage range, V
from -36 to -60
Quiescent current at the rated voltage, maximum, mA
−version RMLT.465311.002…-16, 34
−version RMLT.465311.002-17…-33, 35
73
36
Maximum operating current, mA
−version RMLT.465311.002…-16, 34
−version RMLT.465311.002-17…-33, 35
1100
140
Maximum switching current (external (signal) device circuit) 48 V DC, А
1,25
Maximum power supply of the main amplifier, W
1,2
Maximum power supply of the auxiliary 25 W amplifier for version
RMLT.465311.002… - 16,-34, at least, W
25
Number of programmable direct connections / functions
up to 24
Bandwidth, Hz
from 300 to 6800
Sound pressure level of built-in speaker at maximum volume, maximum
distance 30 cm, at least, dB
107,4
Sound pressure level of built-in speaker at the maximum volume,
maximum distance 100 cm, at least, dB
96,0
Electrical protection class (under GOST IEC 61140-2012)
III
Climatic category according GOST 15150-69
NF11)
Seismic resistance category (under NP-031-01)
I
Safety Class (under NP-001-015 and NP-033-11)*
3Н (Normal)
Ambient temperature range, ºC
from - 55 to + 55
Air pressure range, kPa (mm of mercury)
from 84 to 106,7
(from 630 to 800)
Relative air humidity at 25 °С, %
up to 100

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End of Table 2
Parameter Value
Line interface Ua/Ub DW
Uk
0
-interface
according to CCITT
Transfer protocol
«Armtel»
Overall dimensions (versions without handset)), maximum, mm
515×130×205
Overall dimensions (versions with handset), maximum, mm
540×130×225
Weight, no more than, kg
refer to Table 2
* The product conformity with Safety Class 4Н under NP-001-015 is admitted.
1)
Outdoor use.

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1.1.3 Scope of supply
The Scope of supply for DW is provided in Table 3.
Table 3 – Scope of supply
Identification Name
Quanti-
ty, pcs. Note
RMLT.465311.002* DW Weatherproof Digital Call Station 1
Installation kit
RMLT.734311.002
Bracket
2
Screw М6×16 DIN 933
4
Washer 6 DIN 127
4
Washer 6 DIN 9021
4
Operational documentation
RMLT.465311.002PP
Product Passport
1
RMLT.465311.002UM
User Manual
1
RMLT.465300.001UM1
IPN 1.1 Decentralized Public Address
System. User Manual. Part 2. Administrator
Manual
1
Upon request
from customer
RMLT.465275.002UM1 DCN Communication System. User Manual.
Part 2. Administrator Manual 1
Upon request
from customer
* Version according to the contract for the supply

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1.1.4 Design
Figure 1 shows the DW external appearance of versions -09, -17, -06, -23, -34, -35.
The external appearance of all DW versions i shown in Appendix A.
а) RMLT.465311.002-09, RMLT.465311.002-17
б) RMLT.465311.002-06,
RMLT.465311.002-23
в) RMLT.465311.002-34,
RMLT.465311.002-35
1 – horn loudspeaker; 2 – enclosure; 3 – microphone; 4 – two-way toggle module;
5 – nameplate; 6 – pushbuttons (direct key module); 7 – plug; 8 – cable gland 8161/7 М20х1,5;
9 - captive bolt; 10 – wires; 11 – cover; 12 – case; 13 – cable gland 8161/7 М20х1,5; 14 – handset;
15 - holder with reed switch; 16 - dial pad (keypad); 17 – SOS Pushbutton; 18 - INFO Pushbutton
19 - Information module
Figure 1 – External appearance of DW
DW consists of case (12) and a cover (11). he cover is attached to the case with six
captive screws (9).
DW case design and material provide impact and chemical resistance. The DW body is
made from a specified fiberglass-reinforced polyester resin that is resistant to solar UV
radiation.
In the upper part of the cover there is horn loudspeaker (1) and microphone (3). Under
the horn loudspeaker there is enclosure (2) for placing in it an insert with the number (name)
assigned to the given DW in the communication network. The loudspeaker has a diaphragm
that is resistant to moisture and vapors of aggressive chemicals. A special microphone with
a narrow directivity pattern and a small sensitivity zone improves the selectivity of the sound

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path. The loudspeaker and microphone are protected from mechanical damage and direct
ingress of small particles and water by shaped grilles.
In the lower part of the cover there are compartments for removable modules, which
contain from one to three modules of the following types:
two-way toggle module (4);
pushbuttons (6);
holder with reed switch (15) and handset (14);
dial pad (16);
SOS Pushbutton (17);
INFO Pushbutton (18);
information module (19).
The set of modules is determined by the product version (see table 1). Dummy plugs (7)
are installed instead of missing modules.
Note - The loudspeaker and the microphone module are fixed on the inner surface of
the cover, and the modules are fixed on the outside.
The use of non-contact (optical) pairs as sensing elements for key switches prevents
sparks and poor contact due to corrosion. Modules of buttons, keyboards, as well as
modules "SOS" and "INFO" are sealed with rubber gaskets.
Through cable glands (8) located on the bottom edge of the case, cables are inserted
into the case to connect DW to the power supply and to the communication line.
The cable gland (13) is for connecting an external microphone.
To ensure the degree of protection DW IP66, rubber sealing gaskets are installed under
the cover, loudspeaker and microphone, switch mechanisms and cable glands.
The above features of the DW design allow the product to be operated in open space
and (or) at facilities with high levels of humidity, noise, dustiness and temperature, the
presence of smoke, corrosive gases and chemical vapors in the air.

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1.1.5 DW case
Inside the DW housing (see Figure 2), chassis (1) is fixed on the racks, on which,
depending on the version, either only the DWEx board (2) or the DWEx board (2) and the
25 W amplifier (4) are installed. The terminal block (3) is fixed to the rail.
The electromechanical relay installed on the DWEx board is intended for switching with
incoming calls to external devices, such as a light signal device (not included in the scope of
supply). The operating mode of the relay is determined by its configuration parameters. The
following modes of the relay operation are possible:
−the relay is not activated during a call;
−the relay is always activated when an incoming call comes in (default mode);
−the relay is activated when the first call comes in, and is turned off after the sub-
scriber answers. Re-enable after the lock interval of 15 seconds.
а) case without 25 W amplifier
b) case with 25 W amplifier
1 – chassis; 2 – DWEx board; 3 – terminals; 4 – 25 W amplifier
Figure 2 – DW case

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1.1.6 DW cover
On the inside of the cover, in addition to the loudspeaker and microphone, a DW-BC
board (3, Figure 3) is installed.
1 – microphone module; 2 – horn loudspeaker; 3 – DW-BC board
Figure 3 – DW cover
The DW-BC board is designed to configure DW, as well as to connect and configure
an external microphone. The DWEx board and the DW-BC board are interconnected by
wires (10, Figure 1), which ensure their interaction and functioning in the communication
system.
The external view of the DW-BC board is shown in Figure 4.
Figure 4 – External appearance of DW-BC board

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The DW-BC board has the following elements:
1, 2, 5 – four-positions DIP-switches («SW6», «SW5», «SW4») for the type of installed
modules in the corresponding cover compartments, depending on the switch position:
a) All switches OFF – nothing is connected (plug is installed);
b) Switches №1 ON – two-way toggles (for two connections) installed;
c) Switches №2 ON – pushbuttons (8 direct keys module) installed;
d) Switches №3 ON – dial pad (keypad module) installed;
e) Switches №4 ON – handset and holder with reed switch installed.
3 – volume control of the main amplifier (VOLUME INT);
4 – external microphone sensitivity control (MIC.EXT);
6, 7, 8 – switches «SW3», «SW1», «SW2» for selecting the type of microphone caps
used in the handset, front panel and external microphone correspondingly:
a) ON – electret;
b) «1» – dynamic.
9 – socket «X5» for external microphone with a push-to-talk key;
10 – socket «X4» for integrated microphone module;
11 – socket «X9» for the handset cradle module;
12 – socket «X8» for integrated speaker;
13 – socket «X6» for a handset;
14 – volume control of the auxiliary amplifier (VOLUME EXT);
15 – integrated microphone sensitivity control (MIC.INT);
16 – handset microphone sensitivity control (MIC.HS);
17 – socket «X7» for DW main board;
18 – switch «SW8» for switching of integrated microphone amplifier:
1. MIC – integrated microphone amplifier is OFF;
2. MIC.AMP – integrated microphone amplifier is ON.
19 – socket «X12» for «SOS» Pushbutton;
20 – socket «X13» for «INFO» Pushbutton;
21 – socket «X14» for «SOS» and «INFO» Pushbuttons power supply.

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1.1.7 Labeling
On the left side of the DW cast is placed bilingual nameplate.
The nameplate contains the following information:
−name, trademark and reference information of the manufacturer;
−product name and description;
−permissible operating temperature range;
−degree of protection provided by enclosures (IP code);
−rated supply voltage value;
−EAC marking;
−sign of III class of electrical safety according to GOST IEC 61140-2012;
−special waste disposal mark;
−product serial number;
−date of manufacture.
The serial number is unique for each product.
1.1.8 Package
DW with the assembly kit and documents, which come with the supply package, is
packed in consumer package (cardboard box) according to GOST 23088-80.
A label in Russian language and English language is glued onto the consumer package,
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
enables storage of the DW, provided requirements set in Section 5 are met.
For shipment of the DW from the manufacturer, consumer package contents are placed
in the package place, which ensures protection from mechanical damage, direct ingress of
atmospheric precipitation, dust and solar radiation during transportation.