PRODUCT
USB ⇔ RS-422/485
Interface Converter
Interface Converter
SI-35USB
SI-35USB-2
●3000 High-voltage Resistant Isolation type
●SI-35USB-2 is smaller than SI-35USB by 20% and supports the demand for space-saving.
●USB Bus power. No need to have an external power supply.
●Virtual COM port driver supporting Windows® 10 is attached.
●Card-case sized, metal enclosure, noise resitance.
●Able to mount on 35mm DIN rail.
●Lowe power consumption.
●Support 300bps up to 3Mbps.
●Support RS-485 driver control automatically and DTR/RTS line control.
●Monitor RS-485 line and support flow control on CTS line.
●Able to control 128sets maximum as RS-485 multi-drop type.
●Able to extend RS-422/485 up to 1.2Km.
Data Sheet
| Conversion | USB⇔RS-422/485 |
|---|---|
| USB Interface | USB1.1/2.0, full speed transmission B connector |
| LED | Transmission: TXD, Reception: RXD, Power: PWR |
| Serial Interface | RS-422/485, Full duplex/ Half duplex 5 pole terminal block (press-to-screw pitch type) Fitness wire: AWG24-14*1 |
| Serial Signal | TXD, RXD or TXD/RXD |
| Asynch type | Asynch |
| Baud Rate | 300bps to 3Mbps*2 |
| Data Frame | Data bits[7or8] + Parity[Even/Odd/none] + Stop bits[1/2] |
| Flow Control | Xon/off, RTS/CTS (supported by COM port emulator) |
| RS-485 Monitor | Monitor non-communication on RS-485*3 |
| RS-485 Driver Control | Control RS-485 driver to be active. (for transmission only)*4 |
| Multi-drop connection | Max. 128 sets |
| Mounting method | Using M3 screw hole in the bottom face, installation to a DIN rail (SI-DIN70 is required.), wall hanging by SI-WM1(option), installation to metal wall by magnets SI-MG70(option) |
| Signal Isolation Protection | 3000Vdc |
| System requirements (USB equipment) |
PC: PC/AT compatible with USB port (DOS/V PC) OS: Windows® 7/8/8.1/10*5 |
| Power | USB Bus power, DC5V±10%, Max. 150mA |
| Power Consumption | SI-35USB: 1.3W or less SI-35USB-2: 0.5W or less |
| Temperature | SI-35USB: In operation: -10 to 55°C, In storage: -20 to 75°C SI-35USB-2: In operation: -20 to 60°C, In storage: -20 to 75°C |
| Humidity | In operation: 10 to 90%RH, In storage: 10 to 90%RH (No condensation) |
| Standard | For SI-35USB-2: CE(class A), EMC(EN61326-1:2013) |
| Dimension | SI-35USB: 65(W)×90(D)×22(H)mm SI-35USB-2: 58(W)×80(D)×22.5(H)mm |
| Weight | SI-35USB: Approx. 200g SI-35USB-2: Approx. 160g |
| Composition | USB cable (1.8m), Utility CD, Instruction manual (in Japanese only), Warranty. |
*1: Single wire: 0.2-2.5 mm2. Stranded wire: 0.2-1.5 mm2.
*2: Speed is established in application software. Certain speed beyond 1.2Mbps cannot be established.
*3: Half duplex RS-485 communication requires data transmission while none of other equipments transmit data on RS-485. SI-35USB-2 monitor function sends signal to CTS of the virtual COM port, when designated non-communication period was detected. By this, communication control precession in the PC side is simplified.
*4: Half duplex RS-485 communication needs to activate RS-485 driver only to transmit data. SI-35USB-2 driver auto-control activates the driver IC on the top of transmitted data, and makes it to be non-active after the last data automatically.
*5: Supports 32bit/64bit of Windows 7/8/8.1/10