Rs-485 Serial Interface (3-Pin Connector); Rs-232 Serial Interface (3-Pin Connector); Ethernet Connectors - HMS Netbiter EasyConnect EC150 User Manual

Analog Inputs (AI)
Netbiter EasyConnect EC350 provides 4 analog inputs. All 4 inputs support:
• Current: 0-20 mA (Input resistance 270 Ohm)
• Voltage: 0-10 VDC (Input resistance 280 kOhm)
Analog inputs 1 and 3 also support the connection of:
• PT100: PT100 temperature sensor (range -50° to +150°C).

4.4.2 RS-485 Serial Interface (3-pin Connector)

The RS-485 serial interface is
used to connect Modbus slave
units, known as "devices" in
Netbiter Argos.
Pin Function
A RS-485 Line A
B RS-485 Line B
COM ISO GND (isolated
ground

4.4.3 RS-232 Serial Interface (3-pin Connector)

The RS-232 serial interface is
used to connect a single Mod-
bus slave unit.
Pin Function
Rx Rx Receive input
Tx Tx Transmit output
GND Signal ground

4.4.4 Ethernet Connectors

Two RJ-45 sockets are included:
• WAN: This socket is for the WAN Ethernet network connection, i.e. for connecting to the
Internet and Netbiter Argos.
• LAN: This second network interface is intended for use with future features, and is disabled by
default.
Each Ethernet socket pro-
vides a link activity indicator,
located at the top left of the
socket.
Netbiter EasyConnect
Doc.Rev. 2.10
3-pin RS-485 connector
3-pin RS-232 connector
WAN LAN
Protective Earth (for Ethernet)
Connections 23
A B COM
Rx Tx GND
GPS antenna connector
Doc.ID. HMSI-168-92