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Help CenterIndustrial Usb to 4-port Rs485 Rs422 Serial Hub Converter
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industrial usb to 4-port rs485 rs422 serial hub converter details:
Performance parameters
1) Standards: Conforming to USB1.1, 1.0 and 2.0 standards and EIA RS-485 and RS-422 standard
2) USB signals: VCC,DATA+,DATA-,GND,FG
3) RS-485 signals:T/R+,T/R-,GND
4) RS-422 signals: T/R+,T/R-,RXD+,RXD-,GND
5) Master chip UK FTDI, indstrial grade
6) Operating mode: Asynchronous mode, point-to-point or point-to-multipoint mode, 2-wire half-duplex, 4-wire full-duplex
7) Data flow control: Automatic data flow control technique is adopted to automatically determine and control the data flow
8) Baud rate: 300-128000bps, automatically detecting the data rate
9) Load capacity: point-to-multipoint communication mode is supported, maximum 128 RS-422 or RS-485 devices are supported
10) Communication distance: 5000 meters for RS-485/422 interface (128000bps-9600bps) and no more than 5M for USB port
11) Interface protection: 600W lightning and surge protection for each port, ±15KV ESD protection
12) Isolation degree: 2500Vrms isolation voltage for each port, 500DC continuous specialized DC/DC module
13) Isolation type: master/slave isolation, slave/slave isolation
14) Interface connection: B type female connector at USB side and DB9 male connector at RS-485/422 side
15) Signal indication: 9 signal indicator lights Power(PWR) transmit (TXD) receive (RXD)
16) Transmission media: twisted-pair or shielded cable
17) Baud rate: 460800bps to 300M
1152000bps to 2.4KM
9600bps to 5KM
18) Dimension: 210mmX130mmX32mm
19) Environmental parameters: temperature of -25°C to 70°C, relative humidity of 5% to 95%
20) Supported OS: Win98/Win2000/WinXP/Win7/8/Linux
Connector and signal
1) DB9 PIN type: signal output and pin assignment of RS-485/RS-422
DB9 PIN type(PIN) |
Signal output |
RS-422 full-duplex connection |
RS-485 half-duplex connection |
1 |
T/R+ |
Transmit (A+) |
RS-485 (A+) |
2 |
T/R- |
Transmit(B-) |
RS-485 (B-) |
3 |
RXD+ |
Receive(A+) |
Not connected |
4 |
RXD- |
Receive(B-) |
Not connected |
5 |
GND |
Ground |
Ground |
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
USB to RS-422 conversion
1.RS-422 point-to-point 4 wires communication
2.RS-422 point-to-multipoint 4 wires full-duplex communication
3.Full-duplex communication connection between HK-5204B interface converters
USB to RS-485 conversion
1. RS-485 point-to-point 2 wires half-duplex
2.RS-485 point-to-point 2 wires half-duplex
3. Half-duplex communication connection between HK-5204B interface converters
Problems and troubleshooting
1. Data communication failure
A. Check to make sure USB cable is OK.
B. Make sure RS-485/422output 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 thecommunication 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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