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Troubleshooting

Fast, Easy Answers

One USB port is required for each installed device.  

The USB port can be native to the PC or it can be a 

USB port on a USB hub that is connected to a PC.

The device works with USB 1.1 or 2.0 ports.  But it 

has a maximum USB data rate of 12 Mbps. 

To verify the installation you may open the Windows 

Device Manager. Scroll down to Ports. Expand the 

flyout window. You should see the new ports.  If there 

are no exclamation points or other trouble indicators 

the ports are installed correctly and ready for use.

Sleep & Hibernate: Windows 7 disables USB transmit 

while in Sleep & Hibernate.

Terminal Block

One conductor per terminal.

Use copper wire only.

Wire size 16 to 28 AWG.

Tightening torque 5 KG -CM.

Wire temperature rating: 105 °C

(Sized for 60 °C ampacity 

 

Fast and easy on the web: 

www.bb-elec.com

Four-port USB to

Serial Converter

USR604

© 2011 B&B Electronics Manufacturing Company

1-888-948-2248  |  

Europe: 

+353 91 792444

www.bb-elec.com

Recommended Accessories 

Please double check 
Step 6.
You can also use your 
smart phone to access 
complete documentation 
on our website. Simply 
scan the code to the right.

PS12VLB-INT-MED

Power Supply

http://www.bb-elec.com/

product_multi_family.asp?

MultiFamilyId=133&Trail=
16&TrailType=Top

MDR-20-24

DIN rail mount 

power supply

http://www.bb-elec.com/

product_multi_family.asp?

MultiFamilyId=133&Trail=

16&TrailType=Top

USR604
Two Meter USB Cable
Panel mount adapters
DIN rail mount adapter
CD ROM with Drivers

First Things First...

Before you begin, be sure you have 
the following:

707 Dayton Road | PO Box 1040 | Ottawa, IL 61350

Phone: 815-433-5100 | Fax: 815-433-5109

www.bb-elec.com | E-mail: [email protected]

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Information - FCC rules

This device complies with Part 15 of the FCC rules.  

Operation is subject to the following two conditions: 

(1) This device may not cause harmful interference. 

(2) this device must accept any interference that may 

cause undesired operation.

Information - UL Class 1 Div 2

Suitable for use in Class 1, Division 2, Groups A, B, C and 

D Hazardous Locations, or Nonhazardous locations only.  

WARNING - EXPLOSION HAZARD – DO NOT  

DISCONNECT EQUIPMENT WHILE THE CIRCUIT IS LIVE 

UNLESS THE AREA IS KNOWN TO BE FREE OF  

IGNITABLE CONCENTRATIONS. 

Install in accordance with control drawing 

number 9340R0.

Ind. Cont. Eq.

For HAZ LOC

3HTV

E245458

Class I, Div. 2, Groups A, B, C & D

Temp. Code:  T4A

Document number – PN9781_R000_USR604_4712qsg

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