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5.5 Paging Operation
When the Paging trigger is activated, any
zone that is in standby will be turned On
automatically by the controller. The
display will show (()).
If a zone is listening to a source and the
Paging trigger is activated the controller
will automatically switch to the Paging
Input. The display will show “(())”. Any
audio present at the paging Audio IN
socket will be relayed over the speakers.
As soon as the Paging Trigger returns to
an open circuit the zone will revert to its
previous status, the clock or the original
input.
5.51 Paging Inhibit
You can select which zones will receive
an announcement when the paging is
activated. Each zone has an internal
paging switch which can be set to ON or
OFF when the top cover of the controller
is removed.
LINE DRIVER CARDS
ZONE A
ZONE B
ZONE C
ZONE D
ON
OFF
NOTE 1: If a zone is in Standby, (or is
selected to input 1,2 or 3) and its paging
switch is set to OFF, the zone will remain
in its present status when the paging is
activated.
NOTE 2: If a zone is selected to Input 4
with its paging switch set to OFF, the
paging input will be heard when
activated.
5.6 Configuring the Pre-Out
Sockets
Each zone is equipped with a plug-in PCB Line
Driver module that enables configuration of
the output that each zone PRE-OUT socket
provides.
The factory default setting is a conventional
variable pre-amp output that can be used
directly with an external power amplifier. In
this configuration, output level is controlled
with the handset or keypad volume controls.
If a fixed level output is required, for recording
or home theatre use, each zone can be
configured independently to provide a fixed
level output from its PRE-OUT socket.
NOTE: The level of the fixed output
impedance is 220 ohms.
To configure a zone for a fixed level output:
WARNING
Disconnect the mains supply to the
Controller before removing the top cover.
1. Remove the top cover of the controller and
locate four small plug-in PCB modules
between the front panel and the internal
heatsink. These are configured as zone A on
the left to zone D on the right when viewed
from the front of the unit.
2. Unplug the relevant PCB module, rotate it and
plug the pin header labelled ‘Line Driver’ into
the 15-way micro-socket. Ensure that pin 1 is
pointing to the rear of the controller.
3. Refit the top cover.
The source for the PRE-OUT socket is selected
using the handset or keypad, and is turned
OFF when the zone is set to Standby.
Section 5 • System Set-up
28
