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Data sheet:

Interface USB <> RS232/RS422/RS485 Industry
1kV isolation with overvoltage protection

Information on this data sheet:

Prices

Additional links:

Application:
PC controls RS485 bus system via USB

Interface USB <> RS232/RS422/RS485 Industry
1kV isolation with overvoltage protection

Product properties:

Industry-compatible design on account of
- noise immunity in accordance with EN 61000-6-2
- Galvanic isolation with an insulation voltage of min. 1 kV
- Integrated overvoltage protection for the serial port
- Power supply via USB
- Housing for top-hat-rail installation in accordance with DIN EN 50022-35
Common solution for the Windows, Linux and Mac world:
- Addressable as virtual COM interface under
  Windows 98 / Me / 2000 / XP / Server 2003 / Vista / Server 2008 (x86 and x64)
- Supports Mac OS 8, OS 9 and OS X
- Direct Linux support without additional driver from kernel version 2.4.0
USB 2.0 Full Speed Device (12 Mbit/s)
Selectable operating modes:
- RS232
- RS422
- RS485 2-wire with automatic control, selectable with and without echo suppression
- RS485 4-wire with automatic control
Suitable as "non-intelligent" converter for RS485 field busses
Conforms to standards both in office and industrial environments:
- Increased noise immunity for industrial areas
- Stricter noise emission for residential and commercial areas

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Your suggestions for improvement and additions

Background knowledge: Overvoltage protection for serial interfaces
The permissible voltages allowed to have an effect on serial ports in case of an error are limited to rather low values according to the data sheet specifications for the interface components. Voltages which exceed these values even for a short time will inevitably result in damage to or even destruction of the integrated circuits.

To prevent such effects, the USB Interface 38211 includes integrated overvoltage protection which limits the maximum occurring signal voltage in a variety of applications to harmless values by using Transil diodes.

Technical data:

USB-UART:		FTDI FT232R
Operating modes:		RS232 RS422 RS485 2-wire with automatic control, with and without echo RS485 4-wire with automatic control
Standard baud rates:		300..115200 baud
Possible baud rates:		Depending on application and operating system up to 1 Mbaud (RS232), up to 3 Mbaud (RS422, RS485)
Data format:		Data bit: 7,8 Stop bit: 1,2 Parity: odd, even, no, mark, space
Signal lines:		RS232: RxD, TxD, RTS, CTS, DTR, DSR, DCD, RI RS422: RxD A/B, TxD A/B, CTS A/B, DTR A/B (RTS A/B) RS485: RxD A/B, TxD A/B
RS485 switching time:		1 bit duration for switching between send and receive
Termination:		Connectable termination network for RS485 operation
Overvoltage protection:		Transil diodes for limiting signal voltages
USB connection:		"B"-type plug connector
Serial connection:		9-pin SUB-D adapter
Galvanic isolation:		Isolation voltage min. 1 KV DC between USB and serial connection
Power supply:		5V DC over USB, optional Supply from external 5V power supply
Maximum current draw:		200mA
No-load current draw:		RS232: typ. 70mA RS422, RS485: typ. 90mA
Ambient temperature:		Storage: -40..+70°C Operating in non-rowed installation: 0..+60°C Operating in rowed installation 0..+50°C
Permissible relative humidity:		0..95% RH (non-condensing)
Housing:		Plastic compact housing, 105x75x22mm
Weight:		approx. 170 g
Delivery:		1x Interface, USB <> RS232/RS422/RS485 Industry 1x USB cable with ferrite bead 1x product-CD with driver and manual

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Order now:	Prod. no.	in EUR plus VAT for commercial users Unit price
Interface USB <> RS232/RS422/RS485 Industry	38211	148.00

Power supplies (please order as needed as accessories)
Plug-in Power Supply, 5V / 2A DC with Euro plug	11053	19.00
Cable and Connector Accessories
PC/PC RS232 Cable, DB9F - DB9F, 2m	11992	8.18
RS232 1:1-Cable, DB9F - DB9M, 2m	11952	8.18
DB9F connection cable with open cable ends, right angled, 1,5m	11903	8.18
9-pol. SUB D socket with soldering terminals and shielded housing	11904	9.00
9-pol. SUB D socket with screwing terminal and shielded housing	11905	19.00
USB 2.0 cable, USB A - USB B, with ferrite, 2m	11332	8.18
USB 2.0 cable, USB A - USB B, with ferrite, 5m	11335	19.00
Further accessories
USB-HUB Industry	33601	198.00
Mechanical Accessories
IP wall mount housing, 180 x 130 x 175 mm	11120	49.00
Mounting bracket for wall mounting	58812	9.98
19" DIN rail	58813	19.00

Information on this data sheet:

Additional links:

We are here for you personally!	Wiesemann & Theis GmbH	Tel.: +49 202/2680-110 (M-F 8:00 - 5:00)
	Porschestr. 12	fax: +49 202/2680-265
	42279 Wuppertal	Individual e-mail

© Wiesemann & Theis GmbH, subject to error and alteration: Since we can make errors, none of our statements should be used without verification. Please report any mistakes or misunderstandings so that we can be aware of them and respond appropriately as quickly as possible.

Interface USB <> RS232/RS422/RS485 Industry1kV isolation with overvoltage protection

Product properties:

Technical data:

Order now:

Interface USB <> RS232/RS422/RS485 Industry
1kV isolation with overvoltage protection