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Digitized messages and tones are stored in on-board EPROM and selected by
eight-position DIP switch SW2. Message initiation is via automatic or manual
means. Switches allow selection of either the Evacuation message or a second
message. (On the standard message chip, the second message defaults to the
"All Clear" message.) In addition, two microphone inputs are provided for live
announcements. (Installation of the second microphone is optional.)
The VCP uses the same VTG circuitry as the 4100 Audio Controller. However,
since only one audio channel is available, a single VTG is provided with no
backup VTG available.
When a message plays, it is always routed to Channel 1. If a microphone is
keyed while a message is playing, the microphone is also routed to Channel 1.
The Master (local) Microphone overrides the Remote Microphone (if the
Remote Microphone is installed).
The VCP communicates with a 4020 via RUI communications. Communication
style is selected with a four-position DIP switch, SW6, located on the 565-358
Voice Controller Assembly.
When the VCP is connected to a host (4001/4002 or "other") FACP in Adjunct
Mode, there is no serial communications interface.
With a 4020 system, messages are activated via serial communications. The
4020 panel activates the signal circuit that ties the VCP to the FACP. The VCP
then energizes the circuits that are tied to the four-circuit 4003 SIGcard.
If an alarm is initiated at an "Adjunct" FACP (4001, 4002, or "others"), the four
VCP signal circuits energize and the alarm message plays. A reverse polarity
signal circuit is wired to terminals provided at the VCP. If no such circuit is
available, a +24V signal on alarm can be wired into the "+ Sig" terminal of the
VCP. However, this method does not provide supervision of wiring between the
two panels.
Activation of either the "Manual Evacuation" or "All Clear (Message 2)" switch
is transmitted to the host fire alarm panel in one of two ways. When
communicating with a 4020, the VCP sends the switch status message to the
4020 Master Controller. The Message Initiation switches are described in the
following paragraphs.
Continued on next page
Voice Controller Assembly Description, Continued
Message Programming
Voice/Tone Generation and
Routing
Communications
Automatic Message Initiation
Message Initiation Via
Switches
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