CoolGear USB-8COMi-RM Manuel utilisateur

8 Port USB to RS-

232/422/485 Octal

Adapter

Product Manual

Coolgear, Inc.

Version 1.1

April 2018

Model Number: USB-8COMi-RM

www.coolgear.com

2 USB-8COMi-RM – Product Manual

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Revision History

Revision Date Author Comments

1.1 04/6/2018 Coolgear New Manual

About this document

This product manual outlines installation and features of the USB-8COMi-RM 8 Port USB

to RS-232/422/485 Octal Adapter.

Scope

The scope of this manual is to give the user of the product an understanding of its use

with detailed diagrams and verbiage. The manual allows the users to apply the product

to their application.

Intended Audience

This product is intended for use in numerous industries including but not limited to

applications such as; POS, factory automation equipment, multi-drop data collection

devices, bar code readers, time clocks, scales, data entry terminals, PC to PC long

distance communications, ATMs and serial communication in harsh environments.

Product Support

[email protected]

USB-8COMi-RM – Product Manual 3

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Table of Contents

1. Introduction.........................................................................................................4

1.1 Features .................................................................................................................. 4

2. Hardware Installation...........................................................................................5

3. Windows 7 / Vista / 2003 / XP / 2000 Driver Installation.......................................7

4. Check Installation.................................................................................................8

4.1 Change COM Port Properties & COM Port Number............................................... 8

4.2 Uninstalling Windows 2003 / XP / 2000 Drivers..................................................... 8

5. Uninstalling Windows 7 or Vista Drivers .............................................................11

6. Signal Pin-outs & Wiring.....................................................................................14

6.1 RS-422 Signal Wiring ............................................................................................. 15

6.2 RS-485 Signal Wiring ............................................................................................. 16

7. Notes, Tips, and Warnings ..................................................................................17

8. Supporting References .......................................................................................19

Table of Figures

Figure 1 – Driver Installation………….…..…….……………………………………………………………….…..7

Figure 2, 3, 4, 5, 6, 7 – Uninstalling 2003/XP/2000 Windows Drivers…....….…………..….9-10

Figure 8, 9, 10, 11, 12 – Uninstalling Windows 7 or Vista Drivers…………………..………..11-13

Figure 13, 14 – RS-422 Signal Wiring………….……………………….……………………..…………..……15

Figure 15, 16 – RS-485 Signal Wiring………………………...…………………………………………………16

4 USB-8COMi-RM – Product Manual

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1. Introduction

The USB-8COMi-RM USB to Octal Serial Adapter is designed to make serial port

expansion quick and simple. Connecting to a USB port on your computer or USB hub,

the USB Serial Adapter instantly adds eight RS-232/422/485 multi-electrical interface

serial communication ports to your system.

WEIGHT 2.468 lbs

DIMENSIONS 10.11(L) x 5.80(W) x 1.73in(H)

CABLE LENGTH 3ft.

UPC 729440690984

WARRANTY 1 year from date of purchase

COLOR Black

PORTS (8) DB-9 Male Serial Port

1.1 Features

•TAA Compliant

•Adds 8 high speed RS-232 / 422 / 485

serial ports.

•128 byte transmit buffer for high speed

data throughput.

•Requires no IRQ, DMA, I/O port.

•Data rates: 300 bps to 921.6K bps.

•Serial Connector: one DB-9 male

connector.

•Auto transmitting of buffer control for

2-wire RS-485 half-duplex operation.

•Termination resistors installed on-

board.

•RS-232 data signals: DCD, RxD, TxD,

DTR, GND, DSR, RTS, CTS, RI.

•RS-422 data signals: Tx-, Tx+, Rx+, Rx-,

GND, RTS-, RTS+, CTS+, CTS-.

•RS-485 data signals: Tx-, Tx+, Rx+, Rx-(4

wire) and data-, data+ (2 wire).

•Monitor LEDs of TxD, RxD indicating

port status.

•AC 100V – 240V input for DC 5V, 4A

switching power supply.

•Virtual COM port drivers available for

Windows 7, Vista, 2003, XP, 2000.

•Input: AC 100V ~ 240V, 47 – 63 Hz.

•Output: DC 5.0V 4A.

USB-8COMi-RM – Product Manual 5

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2. Hardware Installation

Outside the unit, there are eight 4-pin DIP switches which are set to select the mode of

operation. You will need to set the switch settings to RS-232 mode, or RS-422 or RS-485

mode as per the requirements of your application.

Note: You need to install driver first, prior to hardware installation. After the setting of

DIP switches and connecting power cord to the adapter, you then plug the adapter to

USB port to start driver installation.

The Mode Block Configuration Settings are listed as follows:

SW1 (Port-1), SW2 (Port-2), SW3 (Port-3), SW4 (Port-4)

SW5 (Port-5), SW6 (Port-6), SW7 (Port-7), SW8 (Port-8)

Operation Mode S1 S2 S3 S4

RS-232 Standard RS-232 Mode

OFF

ON ON ON

RS-422 4 wire with Handshaking ON ON ON ON

RS-485

Full Duplex (4 wire)

OFF

ON ON

Half Duplex (2 wire)

-With Echo

OFF

Half Duplex (2 wire)

-Without Echo

OFF

JP1 (Port-1), JP2 (Port-2), JP3 (Port-3), JP4 (Port-4), JP5 (Port-5), JP6 (Port-6), JP7 (Port-

7), JP8 (Port-8) for Termination and Biasing Option Configuration.

Inside the unit, there are eight 2 x 7 (14 pin) header blocks which are jumpered to

enable Tx, Rx, CTS 120 Ohm termination resistors and Tx, Rx 750 Ohm BIASing resistor.

You will need to open up the metal case and set the jumper setting for RS-422 mode or

RS-485 mode as per the requirements of your application.

6 USB-8COMi-RM – Product Manual

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Settings are listed as follows:

Jumper Function

1-2

Tx Termination of 120 Ohm.

This jumper should always be populated for RS-485 mode.

3-4

Pull-up Tx+ to VCC by 750 Ohm Bias resistor.

This jumper should be populated for pull-up Tx+.

5-6

Pull-down Tx- to GND by 750 Ohm Bias resistor.

This jumper should be populated for pull-down Tx- .

7-8

Rx Termination of 120 Ohm.

This jumper should always be populated for RS-422 mode.

9-10

Pull-up Rx+ to VCC by 750 Ohm Bias resistor.

This jumper should be populated for pull-up Rx+

11-12

Pull-down Rx- to GND by 750 Ohm Bias resistor.

This jumper should be populated for pull-down Rx- .

13-14

CTS Termination of 120 Ohm.

This jumper should always be populated for RS-422 mode.

Note: Sometimes, when operating in RS-422 or RS-485, it is necessary to configure

termination and biasing of the data transmission lines. Generally this must be done in

the cabling, since this depends on the installation of connections. Before applying the

option, check your cable specification for proper impedance matching.

USB-8COMi-RM – Product Manual 7

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3. Windows 7 / Vista / 2003 / XP / 2000 Driver Installation

You need to have administrator privileges to install any new drivers under Windows 7/

Vista / 2003 / XP / 2000. To install the driver or update the configuration please log onto

Windows as "Administrator" or ask your system administrator to install the USB-COM

driver.

Note: You need to install driver first, prior to hardware installation. Do not connect the

USB-to-Serial Adapter to the USB port of your computer, before you finish driver

installation.

Please proceed with the following steps to install the driver:

1. Insert the “USB COM Series Driver and Utility” CD into your CD-ROM.

2. The “USB COM Series Driver and Utility CD” dialog box appears.

3. Under “Driver Installation”, double click “Windows 7, Vista, 2003, XP, 2000

driver” to install the device driver.

4. The USB COM install program will auto-detect the OS type and install the driver

automatically. (Note: in Windows 7 or Vista OS you will find another dialog box,

please click on “OK” to confirm the drivers install program).

Figure 1

5. After the message “FTDI CDM Driver installation process completed” appears,

press “Enter” to complete the driver installation.

6. Plug in the USB to Serial Adapter to the USB port of your computer. Windows

will finish installing the driver files.

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4. Check Installation

You can now verify the installation has been completed successfully by looking under

Device Manager of the System Properties screen. (Go there by Start-Setting- Control

Panel-System Properties-Hardware-Device Manager.

The device should have installed as a "USB Serial Port (COMx)" attached to "USB Serial

Converter (A/B or A/B/C/D)".

4.1 Change COM Port Properties & COM Port Number

This feature is particularly useful for programs, such as HyperTerminal, which only work

with COM1 through COM4. Please ensure that you do not change the COM Port

Number already in use.

To change the virtual COM port properties:

•Select the "USB Serial Port"

•Click “Properties”.

•Select "Port Setting" and “Advanced”.

•Click the drop down arrow on COM Port Number and scroll to the required COM

port. Select "OK".

•Return to the Device Manager Screen. You will see that the USB Serial Port

installation has been changed to the new COM Port Number.

4.2 Uninstalling Windows 2003 / XP / 2000 Drivers

Please proceed with the following steps to uninstall the 2003/XP/2000 driver:

1. Insert the “USB COM Series Driver and Utility” CD into your CD-ROM.

2. The “USB COM Series Driver and Utility CD” dialog box appears.

3. Under “Driver Uninstalling”, double click “Windows 2003, XP, 2000 driver

uninstall” to uninstall the device driver.

4. When following dialog box appears, double click “Clean System” to uninstall the

2003/XP/2000 drivers.

USB-8COMi-RM – Product Manual 9

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Figure 2

5. You need to disconnect all USB to Serial Adapters from your PC, when the

message below appears. Double click “OK” to start uninstalling Windows

2003/XP/2000 USB to Serial drivers.

Figure 3

6. Double click “Yes” to confirm it.

Figure 4

7. Click “No” to proceed.

Figure 5

10 USB-8COMi-RM – Product Manual

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8. When the message “Status: System clean completed” appears, double click

“Exit” to complete the USB to serial drivers uninstall.

Figure 6

9. Press “Start” button and select “Control Panel”.

10. Open the Add or Remove program.

Figure 7

11. Remove the first “Windows Driver Package – FTDI CDM Driver Package (…)”.

12. Click “Change/Remove” and “Yes” to remove the first Windows Driver Package.

13. Remove the second “Windows Driver Package – FTDI CDM Driver Package (…)”.

14. Click “Change/Remove” and “Yes” to remove the second Windows Driver

Package.

15. Reboot the computer to complete the driver uninstall.

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