Simplex 4100ES Installation Manual page 101

7.6.7 Reference for MCC DARIC Installation
For information of the installation of Multiple Digital Command Centre (MCC) Digital Audio Riser Input Option Cards (DARICs) refer to the
latest revision of document 574-844.
7.7 Digital Audio PDI Termination Plug
A Digital Audio Riser Termination Plug (734-183) is provided with every Digital Audio Controller or Digital Audio Riser Module. You must use
this termination plug to properly terminate the Digital Audio Signal on the PDI.
7.7.1 Installing a Digital Audio PDI Termination Plug
To properly terminate the Digital Audio Signal on the PDI, you must install the termination plug into P7 of the Node's last bay that has
Digital Audio. The Digital Audio Controller should be the first item and the Digital Audio Termination Plug the last item in the Digital Audio
PDI Bay-to-Bay wiring. See Figure 64.
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Figure 63: Distributed Microphone Interconnections
4100ES Fire Alarm System Installation Guide
574-848 Rev. BQ