Installing ISDN BRI hardware for trunk applications 392. Install the MISP.3. Install clock referencing on the SILC.4. Install the SILC and/or UILC.5. Connect the system to the MDF.6. Cross-connect the MDF (in Terminal Equipment mode).Note: The system, in TIE trunk or CO connectivity, requires adifferent wiring configuration than for a line application; the transmitand receive pairs should be reversed, as illustrated in Figure 12"Connect the network termination to the U interface and to the S/Tinterface (in TE mode)" (page 43).Selecting the card slotsFollow the same procedures as described earlier for line applications (referto Procedure 1 "Selecting the card slots" (page 16)).Removing the module cover for card installationFollow the same procedures as described earlier for line applications (referto Procedure 2 "Remove the module cover for card installation" (page 20)).Installing the MISPFollow the same procedures as described for line applications (refer toProcedure 3 "Installing the MISP" (page 21)).Installing the clock reference on the SILCThe DSL#0 and DSL#1 on an SILC card can be configured as the referenceclock source, with DSL#0 being assigned for the primary clock referenceand DSL#1 being assigned for the secondary clock reference.The loop number and location of the primary and secondary clock source isconfigured in the Digital Data Block LD 73. Refer to the ISDN Basic RateInterface Feature Fundamentals (NN43001-580).Procedure 11Providing clock referencing on the SILCStep ActionComplete the following procedure to provide clock referencing on the SILC.To install the NTRB53 Clock Controller for CS 1000 Release 4.0refer to ISDN Primary Rate Interface Installation and Commissioning(NN43001-301).1 Maintain the same polarity on each transmit and receive. Rewirethe selected Tx and Rx pairs (applicable to DSL0 and DSL1) toNortel Communication Server 1000ISDN Basic Rate Interface Installation and CommissioningNN43001-318 01.02 StandardRelease 5.0 20 June 2007Copyright © 2003-2007, Nortel Networks.
