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Figure 13: ISDN BRI acceptance testing setup for terminals
Set up ISDN BRI trunking - Local Exchange connectivity
Figure 14: ISDN BRI acceptance testing setup for trunking - Local Exchange connectivity
page 48 illustrates a typical configuration to test ISDN BRI Local Exchange connectivity. The
ISDN BRI Local Exchange DSL is connected to a Network Termination (NT1) device, which is
physically located on the same premises as the system. The NT1 device connects to the Local
Exchange that supports Numeris VN2, 1TR6 or D70 protocol through a U interface. The
distance limitation of the NT1 from the Local Exchange depends on the distance supported by
the Local Exchange.
To achieve system clock synchronization, configure the system as a slave to the local
exchange. Derive the clock source from either the ISDN BRI Local Exchange connection or
the other ISDN BRI/PRI/DTI local exchange connections, if available.
ISDN Basic Rate Interface Installation and Commissioning
Setting up ISDN BRI test terminals and trunks
on
March 2011
47
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