Power supply – Black Box BRI-HUB ISU2011-4-EURO User Manual
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BRI-Hub
TECHNICAL: 0118 931 2233
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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.
Power Supply
BRI-Hub
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.
BRI-Hub-S
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.