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1 – Graphic display OLED is designed for indicating the state of the unit, connections, communication interface
loading and showing the alarm messages.
2 – Indicator «K1» is lit on when relay K1 is activated.
3 – Indicator «K2» is lit on when relay K2 is activated.
4 – Indicator «K3» is lit on when relay K3 is activated.
5 – Indicator «Memory SD» is lit on when there is a memory card in a special slot, is blinking while transmitting the
data to the SD-card.
6 – Indicator «Server» is lit on when there is a connection with a server for data accumulating, is blinking while data
exchange with a server.
7 – Indicator «RS-485» is lit on when waiting a respond from a device in Modbus network; is blinking while data
exchange via Modbus net work.
8 – Indicator «GSM» is blinking every 3 sec. when there is a connection via GSM network, is blinking 3 times per
second while data exchange via GPRS.
9 – Indicator «Ethernet» is lit on when there is a connection via Ethernet network; it is blinking while data exchange
via network.
10 – Reset button «R» (is located under the casing and is available for pressing with a help of thin object such as a
paper clip) is designed to restart the unit or make factory reset.
11 – Alarm indicator «Alarm» warns about an error registration by the analysis of received data.
12 - LED Indicator «Power» is lit on when power voltage present.
2 COMPLETE SUPPLY SET OF EM-486
EM-486 is supplied with table 2.1:
Table 2.1- Complete set of EM-486
Item
EM-486
Cable for Ethernet connection
GSM antenna (SMA M connector, 50 Оhm)*
Operating manual
MicroSD card (2 Gb)
Shipping box
* other types of antennas are delivered in coordination with the buyer
3 TECHNICAL SPECIFICATIONS
Main technical specifications are resulted in Table 3.1.
Table 3.1 – Main technical specifications of the unit
Operating supply voltage, VAC
Supply line frequency, Hz
Data Exchange Interface over the Ethernet network
Supported Ethernet protocols
Data Exchange Interface over wireless network
Supported standards of wireless network
Integrated servers
Maximum number of connections over the Modbus TCP protocol
Data Exchange Interface over the Modbus network
Supported protocols of Modbus network
Maximal output voltage of driver RS-485, V
Short circuit output voltage of driver RS-485 (maximal), mA
Resistance of inbuilt terminator, Ohm
EM-486
~ 6 ~
Figure 1.2 – Front panel of EM-486
Quantity
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
230
45 – 65
10Base-T / 100Base-T
UDP, ARP, TCP
GSM
SMS, GPRS
Modbus TCP, HTTP
4
RS-485
Modbus RTU, Modbus ASCII
3.3
250
70–1 000 Ohm or deactivated
NOVATEK-ELECTRO
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