Expert EX-9543 User Manual download pdf (Page 8)

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EX9000 Series

USB to RS232/422/485 Modul

The EX-9530 convert is an intelligent, stackable expansion module tha

connects to a PC USB port or USB Hub via the Universal Serial Bus(USB) port,

providing one High-Speed RS-232/RS-422 or RS-485 serial port(jumperless)

The EX-9530 features easy connectivity for traditional serial devices.

The RS-232 standard supports full-duplex communication and handshaking

signals (such as RTS, CTS) and The RS-485 control is completely transparen

to the user and software written for half-duplex COM works without an

modification.

The EX-9530's Opto-isolators provide 3000 Vdc of isolation to protect the hos

computer from ground loops and destructive voltage spikes on the

RS-232/RS-422 and RS-485 data lines.

EX-9530 also offer internal surge-protection on their data lines. Internal

high-speed transient suppressors on each data line protect the modules from

dangerous voltages levels or spikes.

The EX-9530 module derives the power from USB port and doesn’t need an

power adapter.

EX9530

Block dia

ram:

Features

■ USB Specification 1.1 Compliant

■ Auto direction flow control on RS-485

■ Full-Duplex RS-232/RS-422 support

■ RS-232 support RTS & CTS handshake signals

■ Minimum 3000 VDC isolation protection

■ Transient suppression on RS-485 data lines

■ Auto switching for USB to RS-232/RS-422 or RS-485

■ Auto Switching Baud Rate up to 115.2 Kbps

■ Reserved space for termination resistors R1(TX/DATA), R2(RX)

■ Power and data flow indicator for troubleshooting

■ Driver support for Windows 95/98/ME/2000/XP, Linux

■ Power requirement: Self Power

USB

Controller

Data+

Data-

+5V

GND

Isolated

Power Supply

Auto

baud rate

detector

Protector

TX+/D+

TX- /D-

RX+

RX-

RTS

CTS

VSS

F.GND

120 R32

R1 1/4W(DIP)

D+/TX+

D-/TX-

Provide on-board termination(120 ohm)

or by user (R1) for D+/TX+ & D-/TX-

JP1

Termination Resistor “R1” for D+/TX+ & D-/TX-

Termination Resistor “R2” for RX+ & RX-

If the length of RS-485 is about 1.2KM, try 120 ohm first.

If the length of RS-485 is about 600M, try 220 ohm first.

If the length of RS-485 is about 300M, try 330 ohm first.

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Expert EX-9543 User Manual Page 8

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