Nuvo Stereo System - Manual (Page 54)

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External Mute/Page: The EXT. MUTE input on the back panel
of Renovia has a dual function. In normal mode, it is designed
for the Mute Interface, NV-MI1 (see Section 9.2 NV-MI1 Mute
Interrupt Adaptor). It can also be configured for use with a
paging phone system to enable whole-house paging. This
requires a phone system that provides an audio output for
paging that is plugged into source input 6 on Renovia (note
that this feature eliminates the use of Source 6 as an audio
source for the system). To use the Page function, you must
select Paging Mode. There are two types of voltage triggers
associated with the Page function. If the phone system you are
using sends a voltage to trigger paging, selecting Paging Mode
sets the mute input to react and mute all zones. If it triggers by
creating a closure (dropping down to 0 voltage), you need to
select Active Low (Closed)
.
Serial Delay: This function is only used in conjunction with
third party home automation systems. This function sets a delay
in milliseconds between each of the function commands being
streamed through the Renovia RS232 port. This allows a slower
home automation processor to buffer multiple commands from
the Renovia System.
Active Sources: This Allows unused source inputs to be turned
off so they do not show up when you scroll through the sources
at the Control Pads.
Reset System: This is a shortcut for resetting the zone
addresses assigned to each Control Pad. Within the menu
selection, Yes restores all Control Pads plugged into the system
to the factory default.