[USB-304] 2 channel USB RS485/422 Converter (Independent Isolation) MAX 12Mbps
2 channel USB RS485/422 Converter
Each 2 channels are independent isolation
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Overview
USB-304 is a 2 channel USB to RS485/RS422 converter that isolated between each RS-485/422 serial port and a USB port. You can use 2 channels of RS-485/422 serial port from a USB port. Those 2 channels are isolated independently from USB side.
USB-304 has the dip switch to enable and disable the built-in 120 ohm terminal resistor. This is designed around the high performance industry proven FTDI chipset.
Features
- Supports RS-485/RS422
2-wire or 4-wire of RS-485/RS422 selectable by the dip-switch - Each 2 channels are independent isolation
- 2000VDC bus isolation
- Baud rate up to 12Mbps (RS422)
- The built-in isolator IC is available for up to 16Mbps
- There is a baud rate that can not be set at more than 6Mbps.
- RS-422 mode: up to 12Mbps, RS-485 mode: up to 6Mbps
- Supports custom baud rate
*When baud rates are more than 6Mbps, only 8 Mbps or 12 Mbps are supported. Please feel free to ask us about that by an inquiry form or e-mail. - USB 2.0 High Speed (480Mbps) and Full Speed (12Mbps) compliant
- Auto transmit data control
Built-in USB-serial chip has auto transmit controller and the driver is activated when it transmit the data - Built-in fail-safe bias resisters
- Built-in 120 ohm terminal resistor selectable by the dip-switch
- Pluggable the screw terminal
- No external power supply is required
USB-304 is powered through a USB port (Bus-powered) - Reliable industrial grade design
- ESD and surge protection
- Housing material: Plastic
- DIN rail and screw mountable (Attachment is required)
- Includes a USB cable (1.8m)
- Includes an AC adapter
- Non-use of 10 Restricted substances of RoHS directive
- MADE IN JAPAN
Specification
Item | Description | Remarks |
---|---|---|
Model | USB-304 | |
Input Power | DC 5V / Less than 200mA Supplied through a USB port (Bus-powered) |
No external power supply required |
Number of RS-485/422 Port | 2 | |
I/O Interface | RS-485/422 (2-wire or 4-wire) | ESD protection |
HOST Interface | USB 2.0 compliant (Support Hi Speed) | USB 1.1 compatible ESD protection |
USB Connector | USB B type (Female) | |
Isolation Method | Bus Isolation | |
Isolation Protection | Over 2000VDC | Designed value |
Processor | FT2232H | FTDI |
USB Driver | Virtual COM port driver | |
Baud Rate | 300bps to 6M/8M/12Mbps | Support custom baud rate |
Data Bits | 7 or 8 bit | |
Stop Bits | 1 or 2 bit | |
Parity | Even, Odd or No-parity | |
FIFO RX Buffer Size | 4096 Bytes / ch | |
FIFO TX Buffer Size | 4096 Bytes / ch | |
LED | POW :Power LED RX :Receive data LED x2 TX :Transmit data LED x2 |
|
RS485/RS422 Connector | Detachable the screw terminal 5pin(PHOENIX CONTACT) | 3.5mm pitch |
Support OS | Windows 10/8.1/8/7/Vista/XP | |
Operating Ambient Temperature | -20 to 60℃ (-4 to 140 [°F]) | No condensation permitted |
Operating Ambient Humidity | 30 to 85%RH | No condensation permitted |
Storage Ambient Temperature | -20 to 60℃ (-4 to 140 [°F]) | No condensation permitted |
Storage Ambient Humidity | 30 to 85%RH | No condensation permitted |
Weight | Approx. 100 [g] | Only main body |
Dimensions | 69 x 82.5 x 30 [mm] (2.717" x 3.248" x 1.181") |
Without projections |
* Power saving function (suspend, standby, sleep and others) is not supported
Interface Termianl (RS-485/RS422 PIN ASSIGNMENT)
Pin No | Signal | Direction | Notes |
---|---|---|---|
1 |
A (RD+) |
IN | Receive data + |
2 |
B (RD-) |
IN | Receive data - |
3 | GND | - | Signal ground |
4 |
Y (SD+) |
OUT | Transmit data + |
5 |
Z (SD-) |
OUT | Transmit data - |
Package Contents
- USB-304
- USB A-B cable 1.8m
- Driver & Application CD
Documentation
Price and Optional Accessories
Description | MODEL | Image | List Price (JPY) | Stock Status |
---|---|---|---|---|
2 channel USB RS485/422 Converter | USB-304 | |||
Attachment with clamping screw |
PEN-003 | |||
Attachment for 35mm DIN rail |
PEN-003-DIN | |||
Attachment with neodymium magnet |
PEN-003-MG | |||
Detachable 5P Terminal Connector 1840395 (Phoenix) (Additional purchase) |
TB35-USB-5 |