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Help CenterUSB to RS485 RS422 Db9 Serial Converter Cable
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Specifications
USB to RS485 RS422 db9 serial converter cableFactory price,High Quality
CE, FCC, ROHS certificate
+/-15 KV ESD protection
USB to RS485 RS422 db9 serial converter cable details:
Performance parameters
1. Standards: conforming to USBV1.1 and 1.0, EIA RS-485 and RS-422, backwards compatible.
2. USB signals: VCC DATA+ DATA- GND FG
3. RS-485 signals: T+, T-, GND.
4. RS-422 signals: T+, T-, R+, R-, GND.
5. Working modes: asynchronous, point-to-point or point-to-multipoint, 2-line half duplex and 4-line full duplex.
6. Direction control: adoption of automatic data stream control for automatic recognition and control of data transmission direction.
7. Baud rate: 300-128,000bps, automatic detection of the transmission rate of the serial interface signal.
8. Workload ability: point-to-multipoint supported, a maximum of 32 RS-422 or RS-485 interface equipments are supported.
9. Transmission distance: 1200 meters for RS-485/422 end (when 9,600bps) and a maximum of 5 meters for USB.
10. Signal indication: 3 indicator lights for Power (PWR), Send (TXD) and Receive (RXD).
11. Transmission media: twisted-pair cable or shielded cable.
12. Transmission rate: 128,000bps to 300M.
38,400bps to 600M.
9,600bps to 1200M.
13. Dimensions: 1555mm 36mm 16mm.
14.Working environment: -25 to 70 , relative humidity5% to 95%.
15. Transmission distance: 0-1200meters (128,000bps-9,600bps)
16. Windows95/98/2000/XP/Vista/Win7/Linux and IMAG are supported.
Connector and signal
RS-485/RS-422 output signals and PIN assignment
| DB9 Connector(PIN) | Output Signal | RS-422 full-duplex | RS-485 half duplex |
| 1 | T/R+ | Sending (A+) | RS-485(A+) |
| 2 | T/R- | Sending(B-) | RS-485(B-) |
| 3 | RXD+ | Receiving(A+) | NULL |
| 4 | RXD- | Receiving(B-) | NULL |
| 5 | GND | Grounding | Grounding |
| 6 | N/A | ||
| 7 | N/A | ||
| 8 | N/A | ||
| 9 | N/A |
2. USB-B female: USB output signals and PIN assignment
Communication Connection Chart
1- Standard USB A type male connector
2- Filter magnetic pole
3- Transparent and shielded standard 2.0 communication line
4- Fine shell(blue)
5- Standard DB9 male connector
6- MCU adopts the product of the TaiWan chip
Problems and troubleshooting
1. Data communication failure
A. Check to make sure USB cable is OK.
B. Make sure RS-485422 output interface connection is correct.
C. Make sure power supply is OK.
D. Make sure the wire terminal connection is OK.
E. Make sure the indicator lights flash when receiving.
F. Make sure the indicator lights flash when sending.
2. Data missing or incorrect
A. Check to see whether the data rate and format at both ends of the communication equipment are consistent.
Q1: Can you provide OEM service?
Yes, we work on OEM orders.which means design, packing solution,etc will depend on your requests; and your logo will be customized on our products.
Q2: What information should i let you know if i want to get a quotation?
1.Which products are your need?
2.package
3.Quiantitles
Q3: WHY US?
1.The only recommended brand of interface converter by CCTV;
2.Established in 2000, there are 8 branch companies all over China;
3.More than 20 years’ manufacturing in communication filed and more than 15-year customization experience;
4.With professional management, R&D, manufacturing, QC and service team, we are always ready to provide perfect products and service for you;
5.Always the selection of Telefonaktiebolaget LM Ericsson, Huawei, Wachovia Corporation, Foxconn, Motorola, OKI, CNPC, Sinopec and China Mobile since the first cooperation between us.
Welcome to contact us!
Mr.Steve Fang
Telephone:+86-755-61566101
Fax:+86-755-61566066
Skype: hightektech
Address: 7/F,Bldg.5,Wuwu Science & Technology Park,Longhua District,Shenzhen,China
Send Inquiry to This Supplier
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