Paging And Doorbell; Paging And Doorbell Overview; Command Flow For Setting Up A Page - Zektor HDA604 User Manual

Paging and Doorbell

Paging and Doorbell Overview

To use paging, paging "presets" are setup in advance. Once these are setup, a paging command is
issued, and the switch will switch to the given presets. Once the page is over, either by timing out, or
an "end page" command is sent, the switch will return to its previous settings.
This allows the controller to setup all paging in advance. During a page, only a single command is sent
to change all sources, and paging volumes.
Each zone has an individual "Do Not Disturb" flag setting. This allows zones to be setup in advance,
but can then be disabled on a zone by zone basis. It allows the controller to select which zones are
affected without having rewrite all the presets.
The switch does not have a doorbell sound generator built in. To generate a doorbell sound, a doorbell
sound generator of some type must be attached to an input. You can then use the paging presets to
switch zones to the doorbell source during a page.
To implement a paging function, a microphone preamp is needed. The preamp is connected to an audio
input, and paging presets are used to switch zones to the microphone source for the duration of the
page.

Command flow for setting up a page

To setup a page, you must start by issuing pASZ (and or pDSZ and pHSZ) commands to indicate
which inputs to switch to during a page. This can be an input connected to a chime generator in the
case of a doorbell, or a microphone preamp in the case of a page. The pHSZ command can be used to
switch to a camera input (taking into account that in general, HDMI sources do not switch quickly).
Use the pVZ or the pVPZ commands to set the desired paging / doorbell volumes for each zone.
By default each zone has it's DND (Do Not Disturb) flag set to Do Not Disturb '1'. You must set the
DND flag to '0' if you want the zone to switch to the doorbell / paging input when the doorbell / page
is triggered.
If you want a zone to only mute or lower its volume during a page, but not switch to the doorbell chime
(for instance, to turn off hallway speakers, but only play the chime in the living room), set the DND
flag to '2'.
Setting the DND flag to '1' will cause the zone to be ignored during a page. This allows you to remove
a zone from a page temporarily, for instance when the baby is asleep you might want to set a DND flag
for the baby's room to '1'.
If you are going to use the back panel connections for paging, you must setup the behavior of the back
panel triggers using the pDSW command. If you are going to let the user decide how long a page last
(by hold down a button), look into using the pTIME command to set a minimum page time, so that
simply tapping a switch allows enough time for a minimum doorbell ring.
Once you have setup the paging commands you may want to issue a "^SS 4096$" command to save
the settings in EEPROM so that are not lost during a power fail.
Once all the zones are programmed for switching, and volume levels set, and the do-not-disturb flags
are set properly, and the back panel switch behaviors are setup, you are ready to use the paging.
You can now start a page by either issuing a 'pSET x' command. Or by triggering a page using the
back panel dry contact closures (a button or relay), or a voltage trigger.
Zektor Switch Serial Protocol, Version 0.16, 5/13/16
Paging and Doorbell
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