Check the listing for details. Optically isolated USB to RS485/422/232/TTL industrial lightningprotection. Condition: New. Listed at 62.61 USD. Standard: Comply with USBV1.0, 1.1, 2.0 standards EIA RS-232, RS-422, RS-485 standards,USB signal: VCC, DATA+, DATA-, GND RS-232 signal: DB-9, GND, TXD, RXD RS-422 signal: T+, T-, RX+, RX-RS-485 signal: A, BWorking mode: asynchronous work, point-to-point or point-to-multipoint, 3-wire communication, 2-wire half-duplex, 4-wire full-duplex Directional control: automatic data control and automatic control technology to automatically identify and control data transmission directionBaud rate: 300-921.6Kbps, automatic detection of serial signal rateLoad capacity: support point-to-multipoint per converter allows connection of 128 RS-422 or RS-485 interfacesdevice Transmission distance: USB interface does not exceed 5 meters, RS-232 interface does not exceed 15 meters, RS-422/RS-485Interface is more than 1200 meters Interface protection: surge protection, ±15KV static protection Interface form: USB end B type connector female head, DB9 male connector, 6 position binding postSignal indication: 2 signal indicator transmission (TXD), reception (RXD) Transmission medium: DB9 line, twisted pair, shielded lineDocument size: 95mm*50mm*31mm Use environment: -40 ° C to 85 ° C, relative humidity of 5% to 95%Support Win full range / Linux, etc.Payment Method 1.We accept PayPal only. Fastest and safest way for making a payment. 2.Please make the payment via PayPal within 7 Days From the end of the auction end. 3.Positive FB will be left after received your payment. Shipping 1.Item will be shipped within 2-4 business days upon receipt of payment ,we can ship it from DHL. fedex ,Singapore Post.Hong Kong Post, china Post or many other delivery service, please choose which delivery service do you need . 2.Please confirm your address after you bid the item. Return Policy 1.We believe our items are so outstanding. We are convinced you will be happy with your Purchase. 2.If you do not satisfy with our items. Please simply return to us within 14 Days in original condition. Just pay for the returned postage.Then we can issue full refund to you after the returned item arrived at our warehouse. 3.Please include your eBay ID and item number with any email requests. Feedback & Contact US 1.When you satisfied with our product and services please leave us positive feedback. 2.If a problem occurs, contact us immediately with any email request. 3.Just contact us using the " Ask the seller a question" link on eBay.