Black Box ISU2011-4-EURO Manual De Usuario

 

 
 
 

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  The screws must be put into the holes of the BRI-Hub. The screws slide approximately 25 

mm into the case. 

 

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  The screws can be screwed in tight.  

 

 

              

 

 
 
 
 
 

 

 
The standard BRI-Hub is supplied with a wall mount power adapter. There is no power 
switch at the device. The BRI-Hub is active when the power adaptor is plugged into an outlet 
and the DC connector of the power adaptor is connected to the BRI-Hub. 
 
 

 
Besides the operation with a power adaptor it is possible for a BRI-Hub-8S or BRI-Hub-4S to 
get its power through the power feeding of the NT or PABX via the NT port. Please note that 
the BRI-Hub needs approximately twice the power as an ISDN telephone. Therefore it is not 
possible to operate the BRI-Hub from the ‘restricted mode’ power feeding. 
 
If the DC connector of the power adaptor is plugged into the BRI-Hub DC socket, the BRI-
Hub will switch to the power adaptor automatically even if the power supply doesn't deliver 
any electrical power. Therefore it is necessary to unplug the DC connector from the BRI-Hub 
when the power feeding of the BRI is used.