Bartec RLAnet 17-85G5-2123 Series User Manual

32 Assembly and operating instructions / EN
16.5. USB computer interface
When using several RLA
net
devices in the RS485 data communication network, the interface to a PC (also to its USB port) can be
implemented with an RS485 to USB adapter. When running the service software, the node number can be retrieved or changed. A
length of up to 500 m is possible for the twisted pair line of the RS485 bus. The RS485 bus can also be used for stand-alone use of the
RLA
net
in order to bridge a greater distance for communication with a PC.
An RS485 to USB adapter enables connection to a PC via USB port. The COM interface is assigned automatically by the operating
system (see below).
The product USB-RS485-Bridge from the manufacturer IN-CIRCUIT (available via RS Components) has been tested and works
perfectly. The driver update takes place via the Internet during installation (http://www.in-circuit.de).
To set the DIP switches, please see below:
DIP 1…4: OFF
DIP switch no.
Function (‘ON’ = active)
1
Local echo (data sent will be received,
too)
2
R = 390 Ω between signal A and VCC
3
R = 220Ω between signal A and B
4
R = 390Ω between signal B and GND
Wiring example patch line CAT.6
RJ45 pin 4
B (MOD_D1) --- BU
RLA
net
RS-
RJ45 pin 5
A (MOD_D0) ---
WH/BU
RLA
net
RS+

Bartec RLAnet 17-85G5-2123 Series Specifications

General

Brand	Bartec
Model	RLAnet 17-85G5-2123 Series
Category	Measuring Instruments
Language	English