USB to RS232 BD9 Serial Cable

USB to RS232 BD9 Serial Cable

I. Summary

HighTek HU-01 is a universal USB/RS-232 interface converter. No external powersupply needed. Compatible with USB and RS-232 standards, HU-01 iscapable to perform the conversion from single-ended USB signal into UARTsignal of RS-232. DB9 male connectors are used for connection from RS-232interface. The unique I/O circuit of the internal zero delay auto transceivercontained in the converter controls the data stream direction automatically.

II. Functions

HU-01 interface converter supports the following communication mode:

1. Point-to-point communication mode.

III. Hardware installment and application

Read the user manual carefully before installing the HU-01 interfaceconverter. Put the signal cable of the equipment into the USB socket.

USB/DB9 male connectors are adopted for input/output interfaceconnection for this product.

IV. Performance parameters

1. Standards: conforming to USBV1.0, 1.1 and 2.0 and EIARS-232.
2. USB signals: VCC, DATA+, DATA-, GND and FG.
3. RS-232 signals: DCDRXDTXD DTR GND DSR RTS CTS RI
4. Industrial grade, adopt UK FTDI master chip
5. Working mode: asynchronous point-to-point.
6. Direction control: adoption of automatic data streamcontrol for automaticrecognition and control of data transmission direction.
7. Baud rate: 300-921.6Kbps, automatic detection of the transmission rate of theserial interface signal.
8. Transmission distance: 5 meters for RS-232 and less than 5 meters for USB.
9. Interface protection: +-15KVelectrostatic protection.
10. Interface forms: USB A type male connector and DB9 male connector.
11. Signal indication: 9 indicator lights for Power (PWR), Send (TXD) and Receive (RXD).
12. Transmission media: twisted-pair cable or shielded cable.
13. Dimensions: 1555mm*55mm*36mm.
14. Working environment: -40℃ to 85℃ , relative humidity 5%to 95%
15. Windows95/98/2000/7/8/XP/Vista/Linux and IMAG are supported.
16. Both BUS and external power supply are supported.

V. Connector and signal

1. DB9 male: RS-232 output signals and PIN assignment.

2. USB A male: output signals and PIN assignment

VI. Communication Connection Chart

1-    Standard USBAtype 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 British FTDI company

USB to RS-232 Communication

1.DCD  2.RXD 3.TXD 4.DTR  5.GND  6.DSR  7.RTS  8.CTS  9.RI

VII. Problems and troubleshooting

1. Data communication failure

A. Check to make sure USB cable is OK.

B. Make sure RS-232 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 thecommunication equipment are consistent.

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