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Products
The products listed here are for overseas markets, not for Japan domestic.
Max. 921,600bps RS-232C Serial Communication. Compatible to USB 2.0/USB 1.1 and not necessary to power this product externally as the bus power is used
The COM-1C2-USB is an isolated micro converter for converting the USB port of PC into RS-232C serial communications. The COM-1(USB)H has one RS-232C-standard COM port channel. These products support a baud rate of up to 921,600bps and has separate 128-byte / 384-byte buffer memory for transmit and receive. Windows/Linux device driver is supported with this product.
Serial Communication USB Unit RS-232C 1ch Micro Converter
Model:
COM-1C2-USB
Maker:
CONTEC Co., Ltd.
Features
- Max. 921,600bps RS-232C Serial Communication
The COM ports of this product support up to 921,600 bps. The COM-1(USB)H has one RS-232C-standard COM port channel. - Compatible to USB 2.0/USB 1.1 and not necessary to power this product externally as the bus power is used
Compatible to USB 2.0/USB 1.1 and capable to achieve high speed transfer at Full Speed (12Mbps). Not necessary to power this product externally as the bus power of USB is used. - Possibly used as Windows, Linux-standard COM ports
Combining the product with our device driver COM-DRV makes it possible to use the product in the same manner as the COM ports of a PC. This product supports communication using DCB structures in the Win32 API and Linux-standard system calls. In addition, supplies a diagnostic program to confirm hardware operation and to perform a communication test with equipment. - Equipped with buffer memory for transmitting 128 bytes and receiving 384 bytes
This product is equipped with buffer memory for transmitting 128 bytes and receiving 384 bytes. These are FIFO format, useful for high speed communications and to reduce the load to the CPU when transmitting/receiving. - Equipped with 9-pin D-SUB connector for direct connections to devices such as modems
Use of a 9-pin D-SUB connector (female type) allows you to connect it to a device such as a modem directly. It can also be connected to the cable of another 9-pin D-SUB connector (female type), if the gender changer is connected. (*Installed before shipment) - The control line for RS-232C can be controlled and monitored by software
The control lines for RTS, CTS, DTR and DSR can be controlled and monitored using software.
Specifications
Add-on Module
| Series | USB Micro Converter |
|---|---|
| Bus Specification | USB |
| Size | – |
| Used Connector | D-SUB 9-pin (Female) |
Serial Comm.
| Number of Channels | 1x RS-232C [ASYNC] |
|---|---|
| Transmission Speed | 300 ~ 921,600bps |
| Isolation Property | – |
| Transmission Method | RS-232C [Asynchronous] |
Supported OS
| Supported OS | Windows 11 IoT Enterprise LTSC 2024; Windows 11 (64-bit); Windows 10 IoT Enterprise LTSC 2021 (64-bit); Windows 10 IoT Enterprise 2019 LTSC (64-bit); Windows 10 IoT Enterprise LTSB 2016 (64-bit); Windows 10 (64-bit); Windows 10 (32-bit); Windows Server 2025; Windows Server 2022; Windows Server 2019; Windows Server 2016 ; Linux |
|---|
System specifications
| Item | Specifications | |
|---|---|---|
| Number of channels | 1 channel | |
| Interface type | RS-232C | |
| Transfer method | Asynchronous serial transfer | |
| Baud rate | 300 -921,600bps *1 *2 | |
| Data length | 7, 8 bit / 1, 2 stop bit | |
| Parity check | Even, Odd, Non-parity | |
| Controller chip | XR21V1410 | |
| FIFO memory | Sending: 128byte / receiving: 384byte (by the view of PC) | |
| Connecting distance | Within 15m | |
| Operation guaranteed voltage | 5V±5% *3 | |
| Power consumption *3 | 5VDC 50mA (Max.) | |
| USB bus specification | USB Specification 2.0/1.1 standard | |
| Power consumption | Only bus power | |
| USB transmission speed | 12Mbps (full speed mode) | |
| Cable length | 1.8m | |
| Physical dimension (mm) | 78.3(W) x 20.5(D) x 36.5(H) | |
| 91.0(W) x 20.5(D) x 36.5(H) (When connecting gender changer) | ||
| Weight | 130g | |
| 140g (When connecting gender changer) |
*1 These items can be set by software.
*2 Data transmission at high speed may not be performed normally depending on the environment including the type of status of connected material of cable and environment.
*3 It doesn’t correspond to Low-power Bus-powered Function (4.4V operation).
Installation Environment Requirements
| Item | Specifications |
|---|---|
| Operating ambient temperature | 0 -50°C |
| Operating ambient humidity | 10 -90%RH (No condensation) |
| Floating dust particles | Not to be excessive |
| Corrosive gases | None |
| Standard | VCCI Class A, FCC Class A, CE Marking (EMC Directive Class A, RoHS Directive), UKCA |
Gender changer specification
| Item | Specifications |
|---|---|
| Engagement | 9 pin D-SUB male, thumb screw : UNC#4-40 (inch screw threads) x 2 |
| Wiring | Straight over entire length |
| Physical dimension (mm) | 18.0(W) x 12.5(D) x 31.0(H) |
| Weight | 10g |




