Instruction manual

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Chapter 5 - Operational Procedures
Section 5-1 - Operator Instructions
The SP40/2 panel provides an operator console for push-to-talk Microphone capability and
monitoring normal and trouble conditions. The operator console includes a microphone, a green
AC LED, a yellow TROUBLE LED, and a red STROBE ALARM LED. The operator instructions are
shown in Figure 5-2 on Page 5-3.
The TROUBLE and AC LEDs identify to the operator the condition of the
SP40/2
. The yellow
TROUBLE LED will be illuminated whenever there is a trouble detected by the panel. If no
troubles are detected, only the green AC LED will be illuminated.
Section 5-2 - To Make Live Announcements
1. Hold the microphone within 2 inches from your mouth, press push-to-talk 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 microphone push-to-talk button is depressed and remains depressed for two and
a half minutes, the microphone circuit will automatically switch to the selected supervision
tone.
Section 5-3 - To Record Digital Voice Messages
The Digital Voice section of the SP40/2 panel contains a digital voice memory chip that contains the
digital voice program and the voice messages. The memory chip comes with 3 messages installed.
The DV Memory Chip (See Figure 5-1 on Page 5-2) can be removed and the messages will remain
on the chip. If tailored messages (messages with tones) are required from Wheelock Inc. the new
chip can be installed when received.
The message chip memory is divided into three segments. Each segment is prioritized 1 through 3
matching the inputs IN1 through IN3. If IN3 message is playing and either messages IN2 or IN1 are
initiated, the message on IN3 will immediately stop and the higher priority message will play.
As long as the NAC voltage is applied to the input, the message will repeat. When the voltage is
removed, the message will play to the end and stop.
When the Digital Voice Section is set up for record mode it is important to remember that there are
three memory segments on the DV Memory Chip. Segment 1 is 21 Seconds, Segments 2 and 3 are
18 seconds each.
NOTE: If the Digital Voice Section should fail the SP40/2 panel will play the selected tone
(Code 3 Tone or Slow Whoop). See Figure 3-15 on Page 3-15 for the location of jumper W3.
See Table 3-2 for explanation of the jumper.