EasySYNC Ltd
USB to Serial Converters Manual
Document Reference No.: ES_000061
Version 1.2
Issue Date: 2011-08-23
The ES-U-xxxx-x adapters are a series of USB Serial Converters from EasySYNC Ltd. They provide a
simple method of adapting legacy RS-232 or RS-422/485 devices to work with modern USB ports
using a trusted and reliable FTDI chip set. Available in a variety of enclosures and port numbers, they
are ideal for allowing factory automation equipment, multi-drop data collection devices, barcode
readers, time clocks, scales, data entry terminals and serial communication equipment to be
connected to USB ports in industrial environments.
This manual covers the following USB to Serial Converter products:
ES-U-1001
ES-U-1001-A
ES-U-1001-M
ES-U-1101-M
ES-U-1002
ES-U-1002-A
ES-U-1002-M
ES-U-1004
ES-U-1008
ES-U-1016-RM
ES-U-1032-RM
ES-U-2001
ES-U-2001B
ES-U-2101
ES-U-2101B
ES-U-2101-M
ES-U-2002
ES-U-2002-M
ES-U-2102
ES-U-2102-M
ES-U-2004
ES-U-2104-M
ES-U-2008-M
ES-U-2016-RM
ES-U-3001-M
ES-U-3008-RM
ES-U-3016-RM
EasySYNC Ltd
Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow, G41 1HH, United Kingdom
Tel.: +44 (0) 141 418 0181
Fax: + 44 (0) 141 418 0110
Web:
http://www.easysync.co.uk
E-Mail (Support):
support@easysync.co.uk
Use of EasySYNC devices in life support and/or safety applications is entirely at the user’s risk, and the
user agrees to defend, indemnify and hold harmless EasySYNC from any and all damages, claims, suits
or expense resulting from such use.
Copyright © 2010 - 2011 EasySYNC Limited
Document Reference No.: ES_000061
USB to Serial Converters Manual
Version 1.2
Clearance No.: ES
# 35
1
2
Introduction ............................................................................................ 3
Specifications .......................................................................................... 4
2.1
2.2
2.3
Standard Features ......................................................................................... 4
Interfaces supported .................................................................................... 4
Features by Model ......................................................................................... 5
3
Features of the ES-U-xxxx-x Family ......................................................... 6
3.1
3.2
3.3
3.4
3.5
USB and Serial Interface ............................................................................... 6
Case Styles .................................................................................................... 7
Power Supply ................................................................................................ 8
Optical Isolation & Surge Protection ............................................................. 9
Configuring for RS-232, RS-422 and RS-485 Modes ...................................... 9
4
Installing your Converter ........................................................................10
4.1
4.2
Installation Steps ........................................................................................ 10
Changing Com port properties and Com number ......................................... 13
5
Switch and Jumper Settings ...................................................................14
5.1
5.2
5.3
5.4
5.5
5.6
General Notes and Warnings ....................................................................... 14
ES-U-2xxx Adapters (Plastic enclosure) ...................................................... 15
ES-U-2x01B Adapters (Plastic enclosure) ................................................... 17
ES-U-2xxx-M and ES-U-2xxx-RM with 3 DIP Switches ................................ 19
ES-U-2xxx-M with 4 DIP Switches............................................................... 20
ES-U-3xxx-x ................................................................................................ 21
6
Connector Pinout Information ................................................................23
6.1
6.2
6.3
6.4
6.5
RS-232 Signal Pin-out ................................................................................. 23
RS-422 Signal Pin-out ................................................................................. 25
RS-485 Signal Pin-out (half duplex) ............................................................ 28
RS-485 Signal Pin-out (full duplex) ............................................................ 30
5V Power Output (ES-U-1002-M only) ........................................................ 32
7
Troubleshooting......................................................................................33
7.1
7.2
7.3
7.4
Hardware .................................................................................................... 33
Manual Installation of Driver ...................................................................... 34
Device Driver Options ................................................................................. 38
Further Information on Resolving Driver Issues ......................................... 38
8
9
Contact Information ...............................................................................39
Legal Disclaimer .....................................................................................40
Appendix A - List of Figures and Tables ........................................................41
Appendix B - Revision History .......................................................................43
©2010 - 2011 EasySYNC Ltd.
2
Document Reference No.: ES_000061
USB to Serial Converters Manual
Version 1.2
Clearance No.: ES
# 35
1
Introduction
The ES-U-xxxx-x family of converters provide a quick and simple way to add serial communication ports
to your computer. They connect to a single USB port on your computer to instantly provide up to 32
serial ports. They take advantage of the plug-and-play and hot-plug features of the USB bus to make it
easier than ever to add communication ports to your system.
Installation is easy. There are no IRQ & COM port conflicts as the port doesn't require any additional IRQ,
DMA or memory resources on the system. Each RS-232 or RS-422/RS-485 port functions as a native
Windows COM port, and is compatible with Windows serial communication applications.
The ES-U-xxxx-x converters provide instant connectivity to RS-232 or RS-422/RS-485 compatible
devices, including factory automation equipment, multi-drop data collection devices, barcode readers,
time clocks, scales, data entry terminals and a variety of other devices in industrial environments.
This user guide covers the following models:
USB to RS-232 converters
Single channel
Dual channel
Quad channel
8-channel
16-channel
32-channel
(ES-U-1001, ES-U-1001-A, ES-U-1001-M, ES-U-1101-M)
(ES-U-1002, ES-U-1002-A, ES-U-1002-M)
(ES-U-1004)
(ES-U-1008)
(ES-U-1016-RM)
(ES-U-1032-RM)
USB to RS-422/485 converters
Single channel
Dual channel
Quad channel
8-channel
16-channel
(ES-U-2001, ES-U-2001B, ES-U-2101, ES-U-2101B, ES-U-2101-M)
(ES-U-2002, ES-U-2002-M, ES-U-2102, ES-U-2102-M)
(ES-U-2004, ES-U-2104-M)
(ES-U-2008-M)
(ES-U-2016-RM)
USB to RS-232/422/485 converters
Single channel
8-channel
16-channel
(ES-U-3001-M)
(ES-U-3008-RM)
(ES-U-3016-RM)
©2010 - 2011 EasySYNC Ltd.
3
Document Reference No.: ES_000061
USB to Serial Converters Manual
Version 1.2
Clearance No.: ES
# 35
2
Specifications
2.1
Standard Features
Internal Transmit and Receive buffers
Requires no IRQ, DMA, I/O port
DB-9 male serial connectors *
LEDs for each port indicate TxD and RxD
Virtual COM port drivers available for Windows 7, Windows Server 2008, Windows Vista, Windows
XP, Windows 2000, Windows Server 2003, Mac, Linux and WinCE (4.2 – 6.0)
Operating temperature range of 0 – 55
o
C
USB to RS-232 Features (available on ES-U-1xxx and ES-U-30xx)
Adds RS-232 ports via USB connection
Data rates up to 921.6Kbps depending on model
RS-232 data signals : DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI
USB to RS-422/RS-485 Features (available on ES-U-20xx and ES-U-30xx)
Adds RS-422 / RS-485 ports via USB connection
Data rates up to 1Mbps depending on model
Auto transmit buffer control for 2-wire RS-485 half-duplex operation
Internal termination and bias resistors on some models (enabled by jumper)
RS-422 data signals : TX-, TX+, RX+, RX-, GND, RTS-, RTS+, CTS+, CTS-
RS-485 signals (half duplex) : Data+, Data-, GND
RS-485 signals (full-duplex) : TX-, TX+, RX-, RX+, GND
Additional Opto-isolation Features (available on ES-U-11xx and ES-U-21xx)
Each RS-232 or RS-422/RS-485 port is individually isolated with 2000 volt DC optical isolation
Each RS-232 or RS-422/RS-485 port is individually protected by a surge protector to withstand
electrostatic discharge and power surges up to 25KV ESD
2.2
Interfaces supported
The USB-serial converters in the ES-U-xxxx-x family support the following interfaces:
ES-U-10xx-x
ES-U-11xx-x
ES-U-20xx-x
ES-U-21xx-x
ES-U-30xx-x
*
USB – RS-232
USB – RS-232 (with opto-isolation)
USB – RS-422 or RS-485 **
USB – RS-422 or RS-485 (with opto-isolation) **
USB – RS-232 or RS-422 or RS-485 **
ES-U-1032-RM has RJ45 ports which can be converted to DB-9 male if required using the supplied cables
** Support multiple serial protocols - Jumpers or DIP switches are used to select the required serial protocol
©2010 - 2011 EasySYNC Ltd.
4
Document Reference No.: ES_000061
USB to Serial Converters Manual
Version 1.2
Clearance No.: ES
# 35
2.3
Features by Model
The table below summarises the features for each model in the ES-U-xxxx-x family.
Model Number
Serial
Interfaces
RS232
RS422
RS485
Ports
Case
Power
Supply
Opto
Isolated
Additional features and
Notes
Metal
-
-
Y
Y
-
-
Y
-
-
Y
Y
-
-
-
-
Y
-
-
-
Y
Y
Y
Y
Y
Y
Y
Y
Current
EasySYNC
Model number
ES-U-1001
ES-U-1001-A
ES-U-1001-M
ES-U-1101-M
ES-U-1002
ES-U-1002-A
ES-U-1002-M
ES-U-1004
ES-U-1008
ES-U-1016-RM
ES-U-1032-RM
ES-U-2001
ES-U-2001B
ES-U-2101
ES-U-2101B
ES-U-2101-M
ES-U-2102
ES-U-2002
ES-U-2004
ES-U-2002-M
ES-U-2102-M
ES-U-2104-M
ES-U-2008-M
ES-U-2016-RM
ES-U-3001-M
ES-U-3008-RM
ES-U-3016-RM
Original
EasySYNC Model
number
USB-COM
USB-COM-PL
USB-COM-M
USB-COM-SI-M
USB-2COM
USB-2COM-PL
USB-2COM-M
USB-4COM
USB-8COM
USB-16COM-RM
USB-32COM-RM
USB-COMi
1
1
1
1
2
2
2
4
8
16
32
1
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
-
-
-
-
-
-
-
-
-
-
-
-
-
Y
Y
Y
-
-
-
-
-
-
-
-
-
-
-
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
-
-
-
-
-
-
-
-
-
-
-
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Rack
-
-
-
-
-
-
-
-
-
Y
Y
-
-
-
-
-
-
-
-
-
-
-
-
Y
-
Y
Y
USB
USB
USB
USB
USB
USB
USB
Ext
Ext
Int
Int
USB
USB
USB
USB
USB
Ext
Ext
Ext
USB
USB
Ext
Ext
Int
USB
Int
Int
-
-
-
Y
-
-
-
-
-
-
-
-
Y
Y
Y
Y
-
-
-
Y
Y
-
-
-
-
-
6-way screw terminal, 5V
output
Revision B of ES-U-2001
ES-U-2001 with isolation
Revision B of ES-U-2101
6-way screw terminal
6VDC (2.1A) power adapter
(barrel plug) *
5VDC (2A) power adapter
(barrel plug) *
5VDC (2A) power adapter
(barrel plug) *
5-way screw terminals
ES-U-2002-M with isolation
5VDC (2A) power adapter
(barrel plug) *
12VDC (1.5A) power adapter
(3-pin terminal) *
RJ45 serial connectors
5V 150mA output on 2-way
screw terminal
5VDC (2A) power adapter
(barrel plug) *
5VDC (2A) power adapter
(barrel plug) *
USB-COMi-SI
1
1
USB-COMi-SI-M
USB-2COMi-SI
USB-2COMi
USB-4COMi
USB-2COMi-M
USB-2COMi-SI-M
USB-4COMi-SI-M
USB-8COMi-M
USB-16COMi-M
USB-COMi-M
USB-8COMi-RM
USB-16COMi-RM
1
2
2
4
2
2
4
8
16
1
8
16
Table 1
Features of the ES-U-xxxx-x converters
Power supply types are USB (USB powered), Ext (external power adapter) or Int (internal power supply)
* Power adapter voltages and currents shown in the comments column are for indication only and are subject to
change. To avoid damage, always use the adapter which was provided with your converter to ensure that you are
supplying the correct voltage for operation.
©2010 - 2011 EasySYNC Ltd.
5
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