Technical data

6 Operational Procedures

6.1 Making Live Announcements

1. Hold the on board or remote microphone within 2 inches from your mouth, press the

Push-To-Talk (PTT) switch and begin speaking. (For best results, hold the microphone

within a half inch from your mouth.)

2. When finished, release the PTT switch and return the microphone to its holder.

NOTE: If the on-board microphone push-to-talk button is depressed and remains depressed for

two and a half minutes, the microphone circuit switches automatically to the selected supervision

tone.

6.2 Recording Digital Voice Messages

The Digital Voice section of the SP40S panel contains a digital voice memory chip that contains

the digital voice program and the voice messages. The memory chip comes with eight messages

installed. The DV Memory Chip can be removed and the messages remain on the chip. If tailored

messages (messages with tones) are required from Cooper Wheelock Inc., the new chip can be

installed when received.

• The message chip memory is divided into eight segments. Each segment is prioritized 1

through 8, matching the inputs IN1 through IN8.

• If the IN8 message is playing and a higher priority message is initiated, the message on

IN8 stops immediately and the higher priority message plays.

• As long as the contact closure voltage is applied to the input, the message repeats. When

the voltage is removed, the message plays to the end and stops. The message plays a

minimum of three times completely.

• Each message can be selected to have a code3 pre-alert tone, a 1khz continuous pre-alert

tone, or no pre-alert tone. This is based on SW4 and SW5, positions 1-8 settings.

• Post-tones are also selectable via SW5, position 9. Post-tones match pre-tones on an

individual message basis.

• When the Digital Voice Section is set up for record mode, field recording is limited to

30-second segments.

SP40S Multi-Function Facility Communication System Manual, Revision D