Main parameter:
1. Support 0CB20 eight generations of operating systems: Windows2000/ Win 2003 / Windows XP / Vista / windows 7 32bit / 64 bit
2. Support 0CB20 eight generations of programming software version: STEP7 V5.2 and higher, STEP7 Micro / Win 4.0 and above
3. Full-speed USB device interface, compatible with USB V2.0 specification
4. Power: USB bus powered, power consumption of about 100mA, with overcurrent protection and surge protection
5. Optical Isolation voltage: 1000VDC
6. USB port with anti-surge protection
7. Support for MPI baud rate: 19.2Kbps, 187.5Kbps automatically adapt
8. Support PPI baud: 9.6Kbps, 19.2Kbps, 187.5Kbps automatically adapt
9. Support for long-distance communications, the maximum communication distance of 1000 m (RS485 end, when the baud rate is 187.5Kbps)
10. LEDs with power, data reception indicator, the data transmission indicator
11. Each PC only supports a programming cable 0CB20 Yashiro
12. Working temperature: -20 ~ + 75℃

Description:
1.7972-0CB20-OXAO is optical isolation for industrial design in USB port and RS485 ports are equipped with surge protection and lightning protection circuitry for Siemens S7-300 / 400 and S7-200 series PLC full range PLC. Particularly suitable for interferences fragile industrial field communication port, the circuit in a variety of protective measures to ensure the safe operation of the system.
2. PC adapter USB is the optoelectronic isolated adapter for industrial design. There is anti-surging& anti-lightning protection for the USB and RS485 interface. It support hot plug. Its suitable for S7-300/400/200 series PLC. In particular, it applies to the strong interfere industrial scene and the safeguard in the circuit guarantees the safely running of the system.
3. Photoelectric isolator: The device is also called a photocoupler, or optocoupler for short. Optical couplers use light as a medium to transmit electrical signals. It has a good isolation effect on input and output electrical signals.The main advantages of optocouplers are: signal transmission in one direction, electrical isolation at the input end and output end, the output signal has no effect on the input end, strong anti-interference ability, and stable operation.
4. Features and technical indicators: software version STEP7 V5.2 and above, STEP7 Micro /Win 4.0 and above. MPI baud rate 19.2Kbps, 187.5 Kbps. PPI baud rate 9.6Kbps, 19.2Kbps, 187.5Kbps. The MPI port automatically adapts to the communication rate of 19.2Kbps and 187.5Kbps, 500Kbps, 1.5M Kbps DP master communication.
5. Working temperature: -20-+75°C, long-distance communication, communication distance 1000m (RS485 end, when the baud rate is 187.5Kbps)

Package Included:
1 x Box
1 x 5m Electric Cable
1 x Interface Cable

On Jan 6, 2026 at 23:52:34 PST, seller added the following information:

Brand	Unbranded
UPC	880985202701

PLC Cable for Siemens S7 200/300/400 6ES7 972-0CB20-0XA0 USB-MPI+ PC USB-PPI

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