Meilhaus Electronic Red-USB Iso User Manual Download Page 5

USB-Isolator U

ser’s Manual                             

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This is an optional procedure to change the data rate of the full-speed 
USB-ISOLATOR to low speed.  

 

 
In order to change the speed, it requires that the board be carefully removed 
from the enclosure and this requires handling at an ESD-safe work station.   

 

Warning:  We do not recommend that you do this in the 
field, as it invites potential damage to sensitive internal 
circuitry. 

 

1)  Open enclosure by unscrewing Phillips head screw on bottom of the 

case (a label sticker will have to be pulled up to access this screw). 

 

 

 
2) 

To Switch to Low Speed (1.5Mbps):  

Remove jumpers J1 and J2 and 

replace as shown below (right-most position).   
 

Note:

  If both jumpers are not set the same way the unit will not function 

properly 
 

 

 

Installation 

 
Changing USB Speed 
 

Note:  

Default speed is set to 

full-speed (12Mbps) 

!

Summary of Contents for Red-USB Iso

Page 1: ...Red USB Iso USB Isolator User s Manual Ausgabe May 2011...

Page 2: ...er USB cable Type A to Type B USB 2 0 compatible Changeable Data Rate allows selectable full speed 12Mbps Default or low speed 1 5Mbps Wide Ambient Operation from 40 to 70 C 40 to 158 F Hardened For H...

Page 3: ...esponding to 137mA out load Both signal lines are equipped with common mode filters and include transient protection USB is set to full speed 12 Mbps but can be jumped to low speed 1 5 Mbps for legacy...

Page 4: ...ice has been connected to the computer The power LED of the isolator should be ON and not blinking At this point you are ready to begin talking to your connected device TIP If your PC fails to detect...

Page 5: ...closure and this requires handling at an ESD safe work station Warning We do not recommend that you do this in the field as it invites potential damage to sensitive internal circuitry 1 Open enclosure...

Page 6: ...ot communicate with device connected through the Isolator Your computer does not support the peripheral Your device does not support 12Mbps Try changing internal jumpers to low speed see page 5 You do...

Page 7: ...discharge to the enclosure port per IEC61000 4 2 Radiated Field Immunity RFI 10V M 80 to 1000MHz AM and 900MHz keyed carrier per IEC61000 4 3 Electrical Fast Transient Immunity EFT 2KV to power and 1K...

Page 8: ...hotocopying recording or otherwise without the prior written permission of Meilhaus Electronic GmbH All the information included in this user s gide were put together with utmost care and to best know...

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