Black Box BRI-HUB ISU2011-4-UK Manual De Usuario

 

BRI-Hub 

 
No service is needed during operation. 
 
Cable shorts at one TE port only affect the power feeding voltage of all ports if they are 
internally connected. To reduce this effect self-healing fuses are connected to each port. 
 
The current version of the BRI-Hub cannot clear problems with cable reversals of the TE pair 
(Pins 3 and 6 of the RJ-45). If one of the connected TEs has such a pair reversal, no operation 
is possible since the pulses sent by different TEs have different polarity. 
 
 

 
Pwr 

is on (green), when the BRI-Hub is operating. I.e. the power supply is active. 
This may be the power adaptor or the power feeding when using the 'S' option 
(BRI-Hub-S) 

 

Term 

On: (down position). Both pairs of the NT port are terminated (100

Ω

). 

 

Off: (up position). Termination resistors off. 

 
 
 

 

To clean the BRI-Hub use a damp piece of cloth or antistatic cloth. Please do not use scoring 
or alcoholic fluids. 
 
Caution! Never clean the BRI-Hub wet. This may cause short circuits inside the device.