BRI-Hub
Connecting the Hub
6V DC
CE
The DC connector of the power adapter is inserted into the jack on the left side of the rear panel (Jack "6V DC").
Do not use other power adaptors than the original one. In any case notice the polarity of the connector. Inner tip +, outer ring -.
To connect the BRI-Hub to the NT or an internal BRI of a PABX, use one of the connectors labelled 'NT'. Use the enclosed ISDN-cable. Both connectors are parallel connected, so it doesn't matter which one you chose. The second connector may be used to connect a test device or other TEs. (see ‘Power Failure Operation’ on next the page).
Termination of the NT-port may be switched on and off using the Term-switch. When installing the BRI-Hub, check that both ends of the bus are terminated properly, but only the ends!
Depending on the quality of your cables, a maximum length of 150m may be connected to every TE-port of the BRI-Hub. Note that the sum of the cable lengths (NT-BRI-Hub plus BRI-Hub-TE) should not exceed 150m. Since the BRI-Hub will normally be placed directly next to the NT or the PABX, the entire 150m are available for the TE connection.
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