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The UC4852 2-Port USB to Serial RS-422/485 Hub from ATEN provides an external plug-and-play RS-422 and RS-485 serial connection for connecting handheld computing devices to computers, laptops, and notebooks. The hub is designed to offer a cost-effective solution for quickly and simply adding RS-422 and RS-485 serial ports with data transfer rates of up to 115.2 kb/s for each serial port. As the hub is hot-swappable, no IRQ, DMA, or I/O address resources are needed and each port can independently switch between RS-422 and RS-485.
Supports automatic handshake mode
Up to 115.2 kb/s data transfer rate for each serial port
Dual data buffers for each upstream and downstream data transfer
Supports hot-swapping and plug-and-play
Built-in 16KV ESD protection
Supports both bus power and external power
In the Box
ATEN UC4852 2-Port USB to Serial RS-422/485 Hub
Limited 2-Year Warranty
Table of Contents
Number of Device Connections
1 x USB Type B female (white) 2 x DB-9 male (black) 1 x DC jack
Port Status: 2 (green) Power: 1 (orange)
Max Data Transfer Rate
USB 1.1 compliant, USB 2.0 compatible
RS-232 Pin Configuration
TXD+/-, RxD+/-, RTS+/-, CTS+/-,GND
5, 6, 7, 8
1, 1.5, 2
Bus powered, use of power adapter is optional
Temperature & Humidity
Operating Temp: 32 to 122°F / 0 to 50°C Storage Temp: -4 to 140°F / -20 to 60°C Humidity: 0 to 80% RH, non-condensing