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USB2Serial
Working Temperature: 0℃ ~ 70℃
Working Temperature: 10 ~ 95%RH, no hoarfrost
Operation Platform: Windows98/98SE/2000/ME/XP
Data Port: USB RS-232C,RS-485, 4 rotatable ports
Power Supply: supplied by USB, not additional power supply
Size (L X W X H) : 150 MM X 100 MM X 54 MM
Weight: 0.21 KG
Order No.: USB2Serial

Description:
The USB2Serial provides a simple and easy way to connect Universal Serial Bus (USB) and Serial Port Interface. This adapter is a USB to full-duplex RS-232 and half-duplex RS-485 serial converter integrated into a single package. In essence the USB2Serial is a single USB serial port that has two electrical interfaces (RS-232 and RS-485) available to it. Either interface can be used without the need to set jumpers or change dip switch settings.
Johnson Control Users
The USB2Serial can be used as a converter for those computers or laptops that have a USB interface. In addition to direct support for Johnson Controls software (GX9100, CommPro, MIG, HVAC Pro,M9101, etc.), the USB2Serial provides the following improved features and functionality:

 

Features:
Data transfer rates from 300 Baud to 460,800 Baud
Transmit / Receive LED Indicators
1 Meter USB Cable
USB 1.1 / 2.0 Full Speed Compliant
Does not require an external power supply. The device is entirely USB interface powered
Incorporates both a RS-232C and N2 (RS-485) bus interface so that multiple converters are not necessary.
N2 Bus flow control internally controlled (i.e. no jumpers or resistors to add/modify).