USB Converter
[USB-302] 2 Channel USB to RS232 Converter HuMANDATA LTD.
2 Channel USB RS232C Converter
Each channel is independently isolated.
Overview
USB-302 is a 2 channel USB to RS232C converter that included circuitry with 2500VDC isolation.
Those 2 channels are isolated independently from USB side.

Features
- Supports RS232
- Each 2 channels are independent isolation
- Supports custom baud rate
- No external power supply is required
USB-302 is powered through a USB port (Bus-powered) - Housing material: Plastic
- DIN rail, magnet, and screw mountable (Attachment is required)
- Includes a USB cable (1.8m)
- Non-use of 10 Restricted substances of RoHS directive
- MADE IN JAPAN
![]() |
Reference dataUSB Compliance testEye pattern of upstream tests ![]() |
Specification
| Item | Description | Remarks |
|---|---|---|
| Model | USB-302 | |
| Power | DC 5V / Less than 300mA Supplied through a USB port |
Bus-powered |
| RS232C Port | 2 Port | |
| Input/Output Interface | RS232C | Use 4 signals (TXD, RXD, RTS, CTS) ESD protection |
| HOST interface | USB 2.0 Compliant (High Speed is supported) |
USB 1.1 compatible ESD protection |
| Isolation Method | Bus isolation | Independent Isolation |
| Isolation Protection | 2500VDC | Designed value |
| Communication Method | Asynchronous Serial Communication | |
| LSI | FT2232H | FTDI |
| Baud Rate | 300 bps to 1 Mbps | Support custom baud rate |
| Data Bits | 7 or 8 bit | |
| Stop Bits | 1 or 2 bit | |
| Parity | Even, Odd, No-parity | |
| FIFO RX Buffer Size | 4096 Bytes | |
| FIFO TX Buffer Size | 4096 Bytes | |
| Supports OS | Windows 10/8.1/8/7/Vista/XP | |
| Operating Ambient Temp. (*1) | -20 to 60 °C (-4 to 140 °F) | No condensation permitted |
| Operating Ambient Humi. | 30 to 85 %RH | No condensation permitted |
| Noise Tolerance | Not defined | |
| Standard | Not defined | |
| 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
(*1) The product is tested under 5 degrees wider range than designed specification.
RS232C Connector pinouts
| Pin No | Name | Direction | Notes |
|---|---|---|---|
| 1 | - | ||
| 2 | RXD | IN | |
| 3 | TXD | OUT | |
| 4 | - | ||
| 5 | GND | - | Signal GND |
| 6 | - | ||
| 7 | RTS | OUT | |
| 8 | CTS | IN | |
| 9 | (5V) | - | * reserved for 5V output |
| CASE | FG | - | Connect to GND |
Package Contents
- USB-302
- USB cable 1.8m
- Driver & Application CD
Documentation
Price and Optional Accessories
| Description | MODEL | Image | List Price (JPY) | Stock Status |
|---|---|---|---|---|
| 2 Channel USB to RS232 Converter |
USB-302 | ![]() |
||
| Attachment with clamping screw | PEN-003 | ![]() |
||
| Attachment for 35mm DIN rail |
PEN-003-DIN | ![]() |
||
| Attachment with neodymium magnet |
PEN-003-MG | ![]() |
||
| D-sub 9pin - TB Adapter with FG Terminal |
ACC-045 | ![]() |
Ordering
[USB-003 Rev6] USB RS485/RS422 Converter HuMANDATA LTD.
Our best-selling USB to RS485/RS422 Converter
CE,RoHS compliance.
Overview
USB-003 is a USB to RS485/RS422 converter that isolated with 2000VDC between RS485/422 and a USB port. This converter is that it 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. USB-003 is CE and RoHS compliance.
Features
-
Supports RS485/RS422
2-wire or 4-wire of RS485/RS422 selectable by the dip-switch - 2000VDC bus isolation
- Baud rate up to 250Kbps
- Supports custom baud rate
-
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-003 is powered through a USB port (Bus-powered) - Reliable industrial grade design
- ESD and surge protection
- Housing material: Plastic
- DIN rail, magnet, and screw mountable (Attachment is required)
- Includes a USB cable (1.8m)
- RoHS and CE compliant
- MADE IN JAPAN
Specifications
| Item | Description | Remarks |
|---|---|---|
| Model | USB-003 | |
| Input Power |
5VDC Supplied through a USB port (Bus-powered) |
No external power supply required |
| Current Consumption | Less than 100 mA | |
| I/O Interface | RS485/RS422 (2-wire or 4-wire) |
ESD protection ±15KV |
| HOST Interface |
USB 2.0 compliant (Support Full Speed) |
USB 1.1 compatible ESD protection |
| Baud Rate | 300 bps to 250 Kbps | Support custom baud rate |
| Data Bits | 7 or 8 bit | |
| Stop Bits | 1 or 2 bit | |
| Parity | Even, Odd, No-parity | |
| FIFO RX Buffer Size | 384 bytes | |
| FIFO TX Buffer Size | 128 bytes | |
| Isolation Method | Bus isolation | |
| Isolation Protection | 2000VDC | Designed value |
| Processor | FT232BL | FTDI |
| USB Driver | Virtual COM port driver | |
| Support OS | Windows 10/8.1/8/7/Vista/XP | |
| LED |
POW: USB bus power RX: Receive data TX: Transmit data |
|
| USB connector | Standard Type B Female | |
| RS485/RS422 Connector | Pluggable the screw terminal 5pin (PHOENIX CONTACT) | 5mm pitch |
| Operating Ambient Temperature | -10 to 60℃ (14 to 140 [°F]) | No condensation permitted |
| Operating Ambient Humidity | 30 to 85%RH | No condensation permitted |
| Storage Ambient Temperature | -20 to 55℃ (-4 to 131 [°F]) | No condensation permitted |
| Storage Ambient Humidity | 30 to 85%RH | No condensation permitted |
| CE Compliant |
EMS:EN61000-6-2 - IEC61000-4-2 Electrostatic discharge requirements - IEC61000-4-3 Radiated electromagnetic field requirements - IEC61000-4-4 Electrical fast transient burst requirements - IEC61000-4-5 Surge immunity test requirements - IEC61000-4-6 Conducted radio frequency requirements EMI:EN61000-6-4 - CISPR11 Group 1 Class A Emissions |
This product has applied the common standard for industrial environment EN61000-6-2 and EN61000-6-4 |
| Weight | Approx. 90 [g] | Only main body |
| Dimensions |
67 x 67 x 28 [mm] (2.638" x 2.638" x 1.102") |
Without projections |
* Power saving function (suspend, standby, sleep and others) is not supported
Interface Termianl (RS485/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-003
- USB cable 1.8m
- Driver & Application CD
Documentation
Price and Optional Accessories
| Description | MODEL | Image |
List Price |
Stock Status |
|---|---|---|---|---|
|
USB RS485/RS422 Converter Rev6 |
USB-003 |
|
||
|
Attachment with clamping screw |
PEN-003 |
|
||
|
Attachment for 35mm DIN rail |
PEN-003-DIN |
|
||
|
Attachment with neodymium magnet |
PEN-003-MG |
|
||
|
5P Terminal to RJ45 Convert Adapter |
ACC-005 |
|
||
|
Detachable 5P Terminal Connector 1757048 (Phoenix) (Additional purchase) |
TB-USB-5 |
|
Ordering
[USB-010 Rev4] USB RS485/RS422 Converter(High Speed Type) HuMANDATA LTD.
Isolation and High Speed Data rate: 12Mbps
USB RS485/RS422 Converter
Overview
USB-010 is a USB to RS485/RS422 converter that isolated with 2000VDC between RS485/422 and a USB port. This converter is that it has the dip switch to enable and disable the built-in 120 ohm terminal resistor. USB-010 is compatible with High and Full Speed communication. It can communicate faster than USB-003. This is designed around the high performance industry proven FTDI chipset. USB-010 is Non-use of 10 Restricted substances of RoHS directive. Flame retardant case and the position of TX and RX LED have been changed from Rev4.

* Second and subsequent images are CG models
Features
- Supports RS485/RS422
2-wire or 4-wire of RS485/RS422 selectable by the dip-switch - 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.
- RS422 mode: up to 12Mbps, RS485 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-010 is powered through a USB port (Bus-powered) - Reliable industrial grade design
- ESD and surge protection
- Housing material: Plastic
- DIN rail, magnet, and screw mountable (Attachment is required)
- Includes a USB cable (1.8m)
- Non-use of 10 Restricted substances of RoHS directive
- MADE IN JAPAN
![]() |
Reference dataUSB Compliance testEye pattern of upstream tests ![]() |
Specifications
| Item | Description | Remarks |
|---|---|---|
| Model | USB-010 | |
| Input Power | 5VDC Supplied through a USB port (Bus-powered) |
No external power supply required |
| Current Consumption | Less than 100 mA | |
| I/O Interface | RS422/485 | ESD protection |
| HOST Interface | USB 2.0 compliant (High and Full Speed compliant) |
ESD protection |
| 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, No-parity | |
| FIFO RX Buffer Size | 4096 bytes | |
| FIFO TX Buffer Size | 4096 bytes | |
| Isolation Method | Bus isolation | |
| Isolation Protection | 2000VDC | Designed value |
| Processor | FT2232H | FTDI |
| USB Driver | Virtual COM port driver | |
| Support OS | Windows 10/8.1/8/7/Vista/XP | |
| LED | POW: USB bus power RX: Receive data TX: Transmit data |
|
| RS485/RS422 Connector | Pluggable the screw terminal 5pin (PHOENIX CONTACT) | 5mm pitch |
| 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 55℃ (-4 to 131 [°F]) | No condensation permitted |
| Storage Ambient Humidity | 30 to 85%RH | No condensation permitted |
| Noise Tolerance | Not defined | |
| Transmission and other Standard | Not defined | |
| Weight | Approx. 80 [g] | Only main body |
| Dimensions | 67 x 67 x 28 [mm] (2.638" x 2.638" x 1.102") |
Without projections |
*Power saving function (suspend, standby, sleep and others) is not supported.
Interface Termianl (RS485/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-010
- USB A-B cable 1.8m
- Driver & Application CD
Documentation
Price and Optional Accessories
| Description | MODEL | Image | List Price |
Stock Status |
|---|---|---|---|---|
| USB RS485/RS422 Converter Rev4 |
USB-010 | ![]() |
||
| Attachment with clamping screw |
PEN-003 | ![]() |
||
| Attachment for 35mm DIN rail |
PEN-003-DIN | ![]() |
||
| Attachment with neodymium magnet |
PEN-003-MG | ![]() |
||
| 5P Terminal to RJ45 Convert Adapter |
ACC-005 | ![]() |
||
| Detachable 5P Terminal Connector 1757048 (Phoenix) (Additional purchase) |
TB-USB-5 | ![]() |
Ordering
[USB-010] USB RS485/RS422 Converter(High Speed Type) HuMANDATA LTD.
Isolation and High Speed Data rate: 12Mbps
USB RS485/RS422 Converter
Overview
USB-010 is a USB to RS485/RS422 converter that isolated with 2000VDC between RS485/422 and a USB port. This converter is that it has the dip switch to enable and disable the built-in 120 ohm terminal resistor. USB-010 is compatible with High and Full Speed communication. It can communicate faster than USB-003. This is designed around the high performance industry proven FTDI chipset. USB-010 is Non-use of 6 Restricted substances of RoHS directive.
Information
USB-010 is upgraded to Rev4
Features
-
Supports RS485/RS422
2-wire or 4-wire of RS485/RS422 selectable by the dip-switch - 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.
-
RS422 mode: up to 12Mbps, RS485 mode: up to 6Mbps
*FT2232H does not supported to more 8Mbps and less than 12Mbps.
-
Supports custom baud rate
*There is a baud rate that can not be set at more than 6Mbps. 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-010 is powered through a USB port (Bus-powered) - Reliable industrial grade design
- ESD and surge protection
- Housing material: Plastic
- DIN rail, magnet, and screw mountable (Attachment is required)
- Includes a USB cable (1.8m)
- Non-use of 6 Restricted substances of RoHS directive
- MADE IN JAPAN
|
Reference dataUSB Compliance testEye pattern of upstream tests
|
Specifications
| Item | Description | Remarks |
|---|---|---|
| Model | USB-010 | |
| Input Power |
5VDC Supplied through a USB port (Bus-powered) |
No external power supply required |
| Current Consumption | Less than 100 mA | |
| I/O Interface | RS422/485 |
ESD protection |
| HOST Interface |
USB 2.0 compliant (High and Full Speed compliant) |
ESD protection |
| 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, No-parity | |
| FIFO RX Buffer Size | 4096 bytes | |
| FIFO TX Buffer Size | 4096 bytes | |
| Isolation Method | Bus isolation | |
| Isolation Protection | 2000VDC | Designed value |
| Processor | FT2232H | FTDI |
| USB Driver | Virtual COM port driver | |
| Support OS | Windows 10/8.1/8/7/Vista/XP | |
| LED |
POW: USB bus power RX: Receive data TX: Transmit data |
|
| RS485/RS422 Connector | Pluggable the screw terminal 5pin (PHOENIX CONTACT) | 5mm pitch |
| Operating Ambient Temperature | -20 to 60℃ | No condensation permitted |
| Operating Ambient Humidity | 30 to 85%RH | No condensation permitted |
| Storage Ambient Temperature | -20 to 55℃ | No condensation permitted |
| Storage Ambient Humidity | 30 to 85%RH | No condensation permitted |
| Noise Tolerance | Not defined | |
| Transmission and other Standard | Not defined | |
| Weight | Approx. 80 [g] | Only main body |
| Dimensions |
67 x 67 x 28 [mm] (2.638" x 2.638" x 1.102") |
Without projections |
*Power saving function (suspend, standby, sleep and others) is not supported.
Interface Termianl (RS485/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-010
- USB A-B cable 1.8m
- Driver & Application CD
Documentation
Price and Optional Accessories
| Description | MODEL | Image |
List Price |
Stock Status |
|---|---|---|---|---|
|
USB RS485/RS422 Converter |
USB-010 |
|
Information USB-010 is upgraded to Rev4 |
|
|
Attachment with clamping screw |
PEN-003 |
|
||
|
Attachment for 35mm DIN rail |
PEN-003-DIN |
|
||
|
Attachment with neodymium magnet |
PEN-003-MG |
|
||
|
5P Terminal to RJ45 Convert Adapter |
ACC-005 |
|
||
|
Detachable 5P Terminal Connector 1757048 (Phoenix) (Additional purchase) |
TB-USB-5 |
|
||
Ordering



User's manual, Outline Drawing, etc











