Page 1
Quick Start Guide LC-IND422-485-IRPT
Optically Isolated RS-422/485 Repeater
Introduction
The LC-IND422-485-IRPT is an optically isolated RS-422/485 isolated line repeater that can be used to isolate a piece of equipment from the rest of the network. As a repeater,
it extends the distance of an existing network an additional 1.2 km (4000 ft.) and expands it beyond the typical 32-node limitation. Data signals and the power inputs connect to
the terminal block. 600W surge suppression ensures that the connected equipment is protected even in the harshest of environments. 2-wire RS-485, 4-wire RS-485 and RS-422
are supported. The repeater operates on externally sourced 10 to 30 VDC power. The enclosure has a DIN rail mount that is designed to t easily on a standard 35mm rail.
Bias is provided by 4.7kΩ pull-up/down resistors on the Data In lines. This value is adequate for most applications without termination. If another value is required, space is
provided on the PC for through-hole resistor placement (R12, R21, R14, and R23)
Features
• Extend Data up to 4000 ft / 1.2 km
• 2000V Optically Isolated Data Lines
• -40 to 80°C Operating Temperature
• Modbus ASCII/RTU
Installation
Product Overview
External Power Supply 10 to 30 VDC
Connections: Ground/V(-) = M V (+) = J
Terminal Block
Connectors
A – F
• Input Voltage: 10 – 30 VDC
• Input Power: 0.7 Watts
• Wire Range: 12 – 24 AWG
• Tightening Torque: 4 kgf-cm
Terminal Block
Connectors
G – M
Package Contents
• LC-IND422-485-IRPT
• Additional items required but not included:
Power Supply (10 to 30 VDC, 0.7 W)
RS-422/485 Cable
DIP Switches
1
Setting the baud rate to
9600 will generally allow
you to communicate with
higher baud rates.
SW-7
SW-8
TX Enable
RS-485 2-Wire
Half Duplex
RS-485 4-Wire
Full Duplex
RS-422 Full
Duplex
RX Enable
ON ON
ON OFF
OFF OFF
Switch
K Baud
(ms)
1.2
2.4
4.8
9.6
19.2
38.4
57.6
76.8
115.2
1 2 3 4 5 6 Timeout
OFF OFF OFF OFF OFF OFF 9.02
ON OFF OFF OFF OFF OFF 4.73
OFF ON OFF OFF OFF OFF 2.20
OFF OFF ON OFF OFF OFF 1.1
OFF OFF OFF ON OFF OFF 0.62
OFF OFF OFF OFF ON OFF 0.29
OFF OFF OFF OFF OFF ON 0.17
OFF OFF OFF ON OFF ON 0.15
OFF OFF OFF ON ON ON 0.11
DIP Switches
Please Note: Terminal block and DIP switch settings are shown on the product.
All connections for power and data are made through screw
terminal block connections.
SignalAOUT (+)
Terminal
Block
Isolated
IN (+)CProtected
GroundDOUT (-)EIN (-)FSignal
B
GroundGIN (-)
Non-Isolated
+10 to 30
OUT (-)
H
J
VDC
IN (+)LOUT (+)MGround
K
L-com Global Connectivity
50 High Street
West Mill 3rd oor, Suite #30
North Andover, MA 01845 USA
Wiring Examples
2
Toll Free: 800-341-5266
PH: 978-682-6936
Fax: 978-689-9484
Loading...