MSA MDU-102 User manual

Limited Liability Company
«NPK MORSVYAZAVTOMATICA»
26E, Kibalchicha str., 192174,
St. Petersburg, Russia
Phone.: [phone]
Fax: [phone]
[email protected]
www.unicont.com
NMEA AMPLIFIER-DISTRIBUTOR
MDU-102
Operating manual

Operating Manual
2
Table of contents
INTRODUCTION.........................................................................................................................3
1DESCRIPTION AND OPERATION OF THE PRODUCT...............................................4
1.1 Description............................................................................................................................4
1.2 Technical specifications........................................................................................................4
1.3 Structure and operation of the Product..................................................................................5
1.4 Measurement instruments, tools and appliances...................................................................6
1.5 Marking and sealing..............................................................................................................7
1.6 Packaging..............................................................................................................................7
2INTENDED USE OF THE PRODUCT................................................................................8
2.1 Operational constraints..........................................................................................................8
2.2 Usage preparations................................................................................................................8
2.3 Usage of the product .............................................................................................................9
3TECHNICAL SERVICE OF THE PRODUCT.................................................................19
3.1 General description .............................................................................................................19
3.2 Safety features.....................................................................................................................19
3.3 Maintenance routine............................................................................................................19
3.4 Preservation.........................................................................................................................20
4CURRENT REPAIR OF THE PRODUCT........................................................................21
4.1 General description .............................................................................................................21
4.2 Safety features.....................................................................................................................21
4.3 Current repair ......................................................................................................................21
5STORAGE.............................................................................................................................22
6TRANSPORTATION...........................................................................................................23
7DISPOSAL.............................................................................................................................24
8WARRANTY OBLIGATIONS...........................................................................................25
APPENDIX A (MANDATORY) OUTLINE AND INSTALLATION DIMENSIONS.........26

NMEA amplifier-distributor
MDU-102
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INTRODUCTION
This operating manual (hereinafter referred to as OM) is intended to describe the
structure, operating principles, technical specifications and service of NMEA amplifier-
distributor MDU-102 (hereinafter referred to as the Product, the MDU).
In addition to the instructions given in this document, the safety regulations and
rules applicable in the field shall be observed.
Only those who have read and understood this document and those who have
had special training shall be permitted to operate with the Product according to the ap-
plicable regulations.
Terms and abbreviations:
OM –operating manual;
S –software;
SB –storage battery;
SC –short circuit;
TS –technical service;
CL –check list;
MDU –NMEA amplifier-distributor MDU-102;
LFSG –large fine-pored silica gel granular.

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1DESCRIPTION AND OPERATION OF THE PRODUCT
1.1 DESCRIPTION
The Product is designed for the multiplication of NMEA 0183 signals, version
1-3 (IEC 61162-1, 61162-2) or other serial data transmissions via RS-232 and
RS-422/485 interfaces from one or two sources. The unit provides a checksum test for
data received on the first channel.
1.2 TECHNICAL SPECIFICATIONS
Technical specifications of the Product are represented in Table 1.
Table 1 –General technical specifications of the Product
Parameter
Value
Electrical specifications
Input voltage, DC, V
24 (9.5…36.0)
Max. power consumption, W
3
Galvanic isolation from power mains
+
Reverse polarity protection
+
Overvoltage protection
+
Inputs
Number of input ports, pcs.
2 («CH»1, «CH2»)
Supported interfaces
RS-232, RS-422/485
Max. baud rate, bit/s
115200
Optoisolation of inputs
+
Outputs
Number of output ports, pcs.
8 (2×4)
Number of output groups
2 («A»and «B»)
Output optoisolation
4 non-isolated
4 isolated
Supported interfaces
RS-232, RS-422/485
Max. baud rate, bit/s
115200
General specifications
Overall dimensions, mm
194×119×31
Protection degree
IP22
Limiting temperature, °С
–60…+70
Operating temperature, °С
–15…+55
Weight, kg
0.65

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1.3 STRUCTURE AND OPERATION OF THE PRODUCT
1.3.1 The Product is manufactured in metal casing where a grounding stud and
connection ports are located, see Figure 1.
Figure 1 –The Prodict’s appearance
The Product’s functional elements are represented in Table 2.
Table 2 –Functional elements
№
Element
Type, size and
identifier
Description
1
Ports
–
To connect power supply and data input
(output)
2
Grounding stud
М4х10
Main element of the Product grounding
Note –Positions (№) are shown in Figure 1.
1.3.2 The Product connection via RS-232 and (or) RS-422/485 interfaces is
shown in Figure 2. Assignment of port terminals is represented in Table 3.
Figure 2 –RS-232 and (or) RS-422/485 connection diagram

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Table 3 –Assignment of the Product port terminals
Connector
Terminal №
Description (assignment)
«12/24V»
+
To connect input power supply
E
–
«CH1»
B
To input data
A
«CH2»
B
A
«AI 1», «AI 2»,
«BI 1», «BI 2»
B
To output data via optoisolated outputs
0
A
«A 1», «A 2»,
«B 1», «B 2»
B
To output data
0
A
1.4 MEASUREMENT INSTRUMENTS,TOOLS AND APPLIANCES
Consumables required for the TS are represented in Table 4.
Table 4 –Consumables required for the TS
Name and identifier
of consumables
Amount
of consumables
Note
Cleaning cloth
0.10 kg
1To clean the Product’s surface – use clean cloth;
2To remove severe contamination –use cloth soaked in
alcohol
Rectified hydrolytic
technical ethyl alcohol
0.05 l
To soak cloth and remove contamination from screen
Varnish
0.05 kg
To cover surfaces of the Product in case of paint coating
damage
Abrasive cloth
0.06 х 0.06 m
To polish surfaces of the Product in case of paint coating
damage

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1.5 MARKING AND SEALING
The Product has a nameplate indicating name, serial number, date of manufac-
turing, weight, protection degree, input voltage and power consumption.
The sealing of the Product is not provided.
1.6 PACKAGING
At the time of delivery the Product is packed in a corrugated board box and in-
ner packaging (air bubble film) ensuring its transportation and storage at the warehouse.
Transport packaging is also used as a returnable packaging for transportation of
the Product to the repair location and back.
The sealing of transport packaging is not provided.

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2INTENDED USE OF THE PRODUCT
2.1 OPERATIONAL CONSTRAINTS
Select the installation site in compliance with operational constraints (operating
temperature and protection degree –IP).
Caution! Distance between the installation site and magnetic compass shall
not be less than 1 m!
2.2 USAGE PREPARATIONS
2.2.1 Safety features
While preparing the Product for operation, check it visually after unpacking;
mechanical damage shall be absent.
Connection to power mains shall be provided only in compliance with input
power requirements.
Before connecting the Product shall be switched off and have a proper ground-
ing.
While using the Product the staff shall follow “The technical rules for operation
of electric installation” and “Safety rules for operation of electric installation” while
testing electrical circuits and insulation resistance.
2.2.2 Visual check procedure
Before switching the Product on:
a) observe visually integrity and initial position of the controls on the front pan-
els;
b)check the absence of dust and dirt on the Product casing; clean with a soft
cloth if necessary, see Table 4;
c) check that cable connectors are securely connected to the Product and reliable
grounding.
2.2.3 Switching on instructions. While connecting the Product and preparing it
for operation follow the steps below:
a) transfer circuit breakers of main power switchboard to «OFF» position;
b)connect connection cables to the Product;
c) transfer circuit breakers of main power switchboard to «ON» position».
Note –The Product is ready for operation within 5 second after power supply.

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2.2.4 To switch The Product off:
a) transfer circuit breakers of main power switchboard to «OFF» position;
b)disconnect the connection cables.
2.3 USAGE OF THE PRODUCT
2.3.1 Operation modes
The MDU ensures operation in three modes:
a) Signal multiplication mode with select of active channel;
b) Independent mode of signal multiplication;
c) Signal multiplication mode with a checksum test.
Operation modes and other Product settings are carried out by
DIP-switches «SW1», see Figures 3, 4.
Figure 3 –MDU settings on DIP-switch «SW1»