Link Module Unit - Vodavi XTS-IP Installation Manual

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Chapter 3 - System Installation

Link Module Unit

The Link Module Unit (LMU) provides a link between the Cabinets of the KSU. LMU1 must be
installed to connect Cabinet 0 to Cabinet 1 and Cabinet 3 to Cabinet 4. LMU2 is used to connect
Cabinets 1 and 2 and to connect Cabinets 4 and 5. Signals are transmitted or received via linked
cable. Set the clock source switch of LMU1 to the up position for T1 clock source chain and to
the down position for PRI/BRI clock source chain.
The LMUE is used to connect the first set of Cabinets 0, 1, and 2 with the second set of Cabinets;
it must be installed in Cabinet 3 and is connected with Link Cable to the MPBE in Cabinet 0.
Signals are transmitted or received via linked cable as shown in
Cabinets.
XTS-IP - Installation Manual
Figure 3-12: LMU1 Board Configuration
Figure 3-13: LMU2 Board Configuration
Main Processing Board Installation
Figure 3-5: Connecting Sets of
December 2005