Novus USB-i485 User manual

NOVUS PRODUTOS ELETRÔNICOS LTDA. 1/12
USB-i485 Converter
RS485/RS422
INSTRUCTION MANUAL V1.0x D
CE MARK
This is a Class A product. In a domestic environment, this product may cause radio interference in which case the user may be required to take
adequate measures.

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1SAFETY ALERTS ..................................................................................................................................................................................................3
2PRESENTATION ...................................................................................................................................................................................................4
3DIMENSION...........................................................................................................................................................................................................5
4USB DRIVER INSTALLATION ..............................................................................................................................................................................6
4.1 WINDOWS .............................................................................................................................................................................................................6
4.2 LINUX.....................................................................................................................................................................................................................6
4.3 MAC 6
5SERIAL PORT (COM PORT) ASSIGNMENT - WINDOWS ..................................................................................................................................7
6CONNECTIONS.....................................................................................................................................................................................................8
5.1 HALF-DUPLEX RS485 HALF-DUPLEX (2 WIRES) ..............................................................................................................................................8
5.2 FULL-DUPLEX RS485 FULL-DUPLEX (4 WIRES)...............................................................................................................................................9
5.3 RS422 ....................................................................................................................................................................................................................9
7CONFLICTS WITH OTHER USB DEVICES UNDER WINDOWS ......................................................................................................................10
8TECHNICAL SPECIFICATIONS..........................................................................................................................................................................11
9WARRANTY.........................................................................................................................................................................................................12

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1SAFETY ALERTS
The symbols below are used in the device and throughout this manual to draw the user’s attention to important information related to device safety
and use.
CAUTION
Read the manual fully before installing and
operating the device.
CAUTION OR HAZARD
Risk of electric shock.
ATTENTION
Material sensitive to static charge. Check
precautions before handling.
All safety recommendations appearing in this manual must be followed to ensure personal safety and prevent damage to the instrument or system.
If the instrument is used in a manner other than that specified in this manual, the device’s safety protections may not be effective.

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2PRESENTATION
The USB-i485 Converter is a cost-effective way to convert RS485 or RS422 industrial buses to a USB interface. When connected to a PC USB
port the USB-i485 Converter is automatically detected and is installed as a native COM port, which is compatible with any existing serial
communication application.
Multiple modules can be installed when using USB hubs thus allowing a hassle-free configuration of a multi serial system without any IRQ or DMA
configuration.
1500 Vdc isolation between the USB port and RS485/RS422 protects the PC from spikes or possible misconnections in the communication bus.
The USB-i485 Converter can be configured for four-wire (Full Duplex) RS422 and RS485 or two-wire (Half Duplex) networks. When operating in
two-wire RS485 the data transfer control is automatically done by the converter. Two independent and isolated RS485 networks can be supported
by one USB-i485 Converter thus duplicating the possible number of remote devices.

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3DIMENSION
The USB-i485 Converter has the following dimensions:
Fig. 01 – USB-i485 Converter