Valcom V-9908 System Operation, Installation, Indicators Figure, Programming Voice Messages

Indicators (Figure 1)

Power “ON”

Individual message play Visual system fault

Audible system fault with silence button

Inputs (Figure 2)

Eight remote message activation inputs via single pole pushbutton switches.

RS-232 provided for message uploads and downloads.

Handheld microphone for “live” announcements

Outputs (Figure 2)

Audio output

Page/Message active contact

External contact closure activates on system fault.

System Operation

The Push-to-Talk microphone is used for live pages. The microphone has priority over message playback paging. Pressing the Push-to-Talk switch on the microphone will activate the audio output and override (and CANCEL) any message playback in process.

A group of eight (8) front panel buttons with associated LED’s are used to activate stored messages. When a message is activated, the LED will indicate the status. If the message is playing, the LED will illuminate. Messages are not chainable. A message must be finished before an additional message may be activated. If a message button is pressed while a message is playing the original message will cancel.

A “MESSAGE CANCEL” button is available to cancel any message playing.

Using the program tool, all messages can be programmed for the following play scenarios:

1 play per button activation

2 plays per button activation

3 plays per button activation

Continuous plays per activation (cancelled via “MESSAGE CANCEL” button)

Programming Voice Messages

Eight (8) preprogrammed messages are provided in the V-9908. (See Table 1, for script of preprogrammed messages).

A serial port (RS-232) is provided to upload and download voice messages. The program tool provides all editing and message processing (AGC, response shaping, wave file conversions, etc.).

The final format is standard 8 bit uLaw at 8kHz compressed format.

Although it is possible to upload and download during system operation, it is recommended to perform this function when the system is not in use. This insures that messages will not be corrupted during a download or upload. After message write remove battery and DC power momentarily. Total voice message storage is 8 minutes and there are no other restrictions on lengths of individual messages. It is possible to record tones, signals, etc. that will operate in the voice band range. For additional programming information refer to the Message Control Panel Program Tool Help Menu.

System Fault Monitoring

The main audio channel has an inaudible tone present whenever a page or message is not active. This tone will verify the integrity of the audio channel from the microphone to the audio output. A Valcom V-1096 Audio Interface (included) is required when the speaker runs are non-supervised.

Proper operation of the voice memory flash device is monitored by continuous reading a fixed segment of the memory. This insures the flash memory integrity as well as the circuitry that attaches it to the DSP controller. It will detect defective components and interconnection faults as well as actual memory failure.

In the event of a system or power failure, the “System Fault LED” will illuminate and an audible alarm will sound. The Audible alarm may be silenced by pressing the “Cancel Audible” button, however the “System Fault” LED will remain lit until the fault has been corrected. A 9 Volt battery located on the back of the Page Panel provides the necessary power to operate the fault circuits in the event of a power failure. The 9 Volt battery is monitored and a system fault will occur when the battery voltage drops. A contact closure is available to signal a remote monitoring panel when a system fault occurs.

Full System Supervision using Valcom One-Way Supervised Self-Amplified Speakers and Horns with the Page Panel includes monitoring of the audio and power pairs to the speakers for shorts, opens and grounds. A fault detected on these lines will cause the “System Fault” LED to illuminate. A Valcom V-9999 End of Line device (not included) is required for speaker line termination.

Installation

Refer to the figure on the following pages for wiring connections. All connections should be made to the Message Panel and double-checked prior to connecting DC power.

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