The ABUS RS485-USB module 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 module 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 spykes or possible disconnections in the communication bus.
Computer Interface
:
USB V1.1 Plug-n-Play.
Field Interfaces
:
RS485 Half Duplex (dual buses), RS485 Full Duplex or RS422.
Jumper Selection
:
RS485 / RS422
Data rate
:
300 bits/sec ~ 1Mega bits/sec
Cable Length
:
1200m
Power Supply
:
From the USB Port, Consumption: <100mA
Maximum Unit Load
:
Half Duplex: 2 x 32 devices, Full Duplex: 32 devices.
Operating Temperature
:
0 to 50 °C.
Humidity
:
10 to 90% RH, non condensing.
RS485/RS422 Connector
:
Screw terminal type accepting 1.5mm² (16 SWG) wires.
RS485/422 Bus Protection
:
± 60V DC, 15KV ESD.
Isolation
:
1500V DC isolation for 1 minute from USB interface and RS485/RS422 Interface.
USB Connection
:
Mini-B Connector. A 1.5m cable with plugs mini-B and A.
[RS485_USB_Converter_Adaptor.pdf]