USB2-H-9002-M EasySync, USB2-H-9002-M Datasheet - Page 4

• Manufacturer Part Number: USB2-H-9002-M
• Description: USB Interface IC Hi-speed USB to 4prt Srl RS232/RS485 adpt
• Manufacturer: EasySync

Specifications of USB2-H-9002-M

• Rohs: yes

Document Reference No.: ES_000046
USB2-H-9002-M Hi-Speed USB to 2-Port RS232/RS485 Adapter Data Sheet
Version 1.0
#33
Clearance No.: ES
1
Introduction
1.1
Functional Description
The USB2-H-9002-M adaptor is a USB to dual interface RS232 or RS485 level serial UART adaptor
incorporating FTDI’s FT2232H Hi-Speed USB2.0 (480Mb/s) to dual serial UART interface IC device. The
FT2232H handles all the USB signaling and protocols. The adaptor is housed in a metal enclosure and
provides a fast, simple way to connect devices with an RS232 or RS485 interface to USB.
The integrated electronics of the USB2-H-9002-M utilise the FTDI FT2232H and includes RS485 level
shifters and RS232 level shifters plus TXD/RXD LEDs to provide a visual indication of data traffic through
the adapter. Selection of RS232 or RS485 signalling is made using DIL switches on the front of the
adaptor. Each of the dual channels can be independently configured as either RS232 or RS485.
Figure 1.1 USB2-H-9002-M
Flexible mounting allows the USB2-H-9002-M to be used in a variety of applications, from a portable
adapter to accompany a laptop to permanent installations in industrial, commercial and retail locations.
The metal enclosure incorporates a standard USB-B client connector for connection to an upstream host
or hub port. RS232 and RS485-level signals are available on two 5mm terminal block connectors. The
maximum RS485-level data rate is 10Mbps and the maximum RS232-level data rate is 1Mbps.
The adapter can be independently powered using an external +5V DC (1A) power supply which connects
via a 2.1mm jack socket. It can also be powered from the USB interface if required.
The USB2-H-9002-M adapter requires USB device drivers, available free from
http://www.easysync-
ltd.com. These are used to make the USB2-H-9002-M appear as a Virtual COM Port (VCP). This allows
existing serial communications software, such as HyperTerminal, to exchange data through the USB2-H-
9002-M to a legacy RS485 or RS232 peripheral device.
4
©2010 EasySync Ltd.