Nortel Networks NN43001-318 - Manual (Page 50)

50 Preparing the system
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.
After you complete the acceptance testing setup, proceed with the test
described in
"Testing ISDN BRI functions" (page 87) .
Figure 14
ISDN BRI acceptance testing setup for trunking - Local Exchange connectivity
Set up ISDN BRI trunking - TIE trunk connectivity
Figure 15 "ISDN BRI acceptance testing setup for trunking – TIE trunk
connectivity" (page 51)
illustrates one configuration that can be used to test
ISDN BRI TIE trunk connectivity. In this configuration, a Meridian Customer
Defined Networking (MCDN) TIE trunk connection is implemented by
connecting two systems to the ISDN BRI leased line through the local
exchange using two SILC cards. The S/T interface is connected to the
local exchange using an NT1. There is no distance limitation on this
configuration. System clock synchronization can be achieved by having
Nortel Communication Server 1000
ISDN Basic Rate Interface Installation and Commissioning
NN43001-318 01.02 Standard
Release 5.0 20 June 2007
Copyright © 2003-2007, Nortel Networks
.