USB 485M Quick Start Guide Instruction Sheet

User Manual: USB-485M instruction sheet USB-485M Insert/Instruction Sheets

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USB–485M

2017-09-06

Dimensions

USB to RS-485 Communication Adapter
Instruction Sheet

RJ-45 Pin-out

80.0
[3.15]

5011670101-UM01

UNITS:
mm [in]

8

1

21.2 [0.83]

   

22.5 [0.89]

RJ-45

Pin

Description

1

reserved

2

reserved

3

reserved

4

SG+

5

SG–

6

reserved

7

reserved

8

reserved

Preparations BEFORE Installing Driver (Extract the Driver File)
Install the driver file onto your PC BEFORE installing the USB-485M communication adapter. The
driver file (USB-485M_Drivers.exe) is located on the mini-CD supplied with the USB-485M.

Do NOT connect the USB-485M to your PC before extracting the driver file.
Insert the mini-CD into your PC, follow the file installation prompts, and accept the default
selections except as shown below. (The following screen captures are from 32-bit Windows 7. The
installation windows from other operating systems may vary somewhat.)
• Select the file “USB-485M_Drivers” for installation:

Wiring Connections
The wiring connector on the USB-485M is a standard 8-pin RJ45 receptacle.
A standard 6-pin RJ12 connection plug fits into the RJ45 receptacle,
but it connects only the middle six pins. RJ12 pins 1–6 connect to RJ45 pins 2–7.

• P lease read this instruction sheet thoroughly before installing and using the USB-485M.
• T he contents of this instruction sheet may be changed without prior notice. Please check the
AutomationDirect website for the latest version: www.automationdirect.com/pn/usb485m.

Wiring Connections for GS/DURApulse Series AC Drives
USB-485M
gray 6-wire crossover cable

USB-485M Converter

• T he driver file for this communication adapter may be updated without prior notice. Please
check the AutomationDirect website for the latest version: http://support.automationdirect.
com/products/usb485m.html.

1

4 (SG+)
5 (SG–)

Preface

3
4

The USB-485M is a convenient USB-to-RS-485 converter, which does not require an external power
supply or a complex configuration process. It supports baud rates from 75 to 115.2 kbps, and auto
switching direction of data transmission. In addition, it accomplishes RS-485 data transmission
using RJ-45 connectors for convenient wiring. Its small size, handy use of plug-and-play, and hotswap capability also provide more convenience for users.
USB–485M includes:
• USB-to-RS–485 serial communication adapternext line.
• Cable, RJ12 to RJ12, 6-wire crossover, 2m [79 in], gray (Comparable to part # ZL-RJ12-CBL-2)
• Cable, RJ12 to flying leads, 2-wire straight-through, 2m [79 in], black
• Mini-CD containing Windows driver
• This instruction sheet

Applicable Uses and PC Requirement
•
•
•
•
•

GS and DURApulse™ series AC drives – Modbus polling, and GSOFT configuration software
SOLO™ temperature controllers – Modbus polling, and SL-SOFT configuration software
SureServo™ servo drives – Modbus polling, and SV-PRO configuration software
PLC – CLICK & P3-550 – Modbus polling
Requires 32-bit PC with Windows 98, 2000, NT, XP, Vista, 7, 8, or 10 operating system;
or 64-bit PC with Windows XP, Vista, 7, 8, or 10 operating system (for bridge and driver installation).
• NOTE: Not compatible with DirectSOFT PLC software.

RJ12 Plug

RJ45 Receptacle

RJ12 Plug

Wiring Connections for SOLO Temperature Controllers
1

red

3
4

4 (SG+)
5 (SG–)
8

6

Flying
Leads

RJ12 Plug

RJ45 Receptacle

Terminals

Wiring Connections for SureServo Servo Drives
USB-485M converter
1

4 (SG+)
5 (SG–)
8

RJ45 Receptacle

3
4

6

6

RJ12 Plug

3
4

3
4

RJ12 Plug

6

RJ12
Receptacle

This cable cross-connects
pins 1 to 6, 2 to 5, etc.

BN
BN / WH
RD
RD / BK
YL
YL / BK

1
2
3
4
5
6
SH
SH

1

1

1

SVC-MDCOM-CBL
communication cable

ZL-RTB-RJ12
feed-thru module

USB-485M
gray 6-wire crossover cable

Flying
Leads

Terminal Blocks

USB-485M
black 2-wire cable
1

USB-485M Converter

0.4W

1

3000 VDC
75, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 (bps)

8

Type A (plug)
RJ-45

6

RJ12 Plug

RJ45 Receptacle

USB v2.0 specification

red

3
4

4 (SG+)
5 (SG–)

RS-485 half-duplex (2-wire)

1
2
3
4
5
6

IEEE
1394
Plug

green

Flying
Leads

CLICK PLC (Port 3)
+ Signal A (RS-485)
– Signal B (RS-485)
LG Logic Ground (0V)

Terminals

Wiring Connections for P3-550 PLCs

Windows Operating System required for bridge & driver installation:
32-bit driver: Windows 98, 2000, NT, XP, Vista, 7, 8, 10
64-bit driver: XP, Vista, 7, 8, 10

USB-485M
black 2-wire cable
1

USB-485M Converter
1

4 (SG+)
5 (SG–)

LED Display

8

• Steady Green LED ON: power is ON.
• Blinking orange LED: data is transmitting.

RJ45 Receptacle

09/06/2017

Data + (RS-485)
Data – (RS-485)

green

Wiring Connections for CLICK PLCs

no external power suppy needed

Data Sheet: USB-485M_QSP 2nd Ed

SOLO
Temperature Controller

USB-485M
black 2-wire cable
1

USB-485M Converter

SureServo drive
(CN3 terminal)
1
2
3
4
5
6

IEEE
1394
Receptacle

NOTE: Do not terminate any other
wires from this cable. Cut and tape them off.
(The other wires are used by the SureServo drive.)

USB–485M Specifications

PC Compatibility

6

RJ12 Receptacle

This cable cross-connects
pins 1 to 6, 2 to 5, etc.

Specifications
Power Supply
Power Consumption
Voltage Isolation
Baud Rates Supported
Transmission Type
USB Connector
RS-485 Connector
Compatibility

1

(SG–) 3
(SG+) 4

3
4

6

6

8

GS Series AC Drive

1

1

Sheet 1 of 2

3
4

red

6

RJ12 Plug

green

Flying
Leads

P3-550 PLC (RS-485 port)
G GND
– TXD-/RXD+ TXD+/RXD+

RS-485
Terminals

• “Silicon Laboratories CP210x Evaluation Kit Tools” will be installed on your PC:

Preparations BEFORE Installing Driver (Extract the Driver File) (continued)
• Use the “Browse...” button only if you want to install the driver file in PC folder other than the default
folder (not recommended):

Troubleshooting
(Required Only if Driver Installation is Unsuccessful)

• Browse to the file location where the driver is stored:

• With the USB-485M connected to the PC, go to:
Control Panel --> System --> System Properties --> Hardware --> Device Manager --> Other devices,
and select the “CP2103 USB to UART Bridge Controller”:

Driver Installation
Do NOT connect the USB-485M to your PC before extracting the driver file.
• After the driver is successfully updated, the applicable comm port will show in Device Manager.
(The comm port number may vary depending upon your PC.)
Double click the comm port to set the baud rate, stop bits, etc.

AFTER installing the driver file onto your PC, connect the USB-485M communication adapter to the
USB port of the PC and install the driver onto the USB-485M.
Follow the file installation prompts and accept the default selections except as shown below.
(The following screen captures are from Windows XP Service Pack 3. The installation windows from
other operating systems may vary somewhat.)
• We recommend “Install from a list...”, especially if you installed the driver file on your PC in a file
location other than the default location.

Data Sheet: USB-485M_QSP 2nd Ed

09/06/2017

Sheet 2 of 2

• From the “General” tab, select “Update Driver...”



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