3M C960, Service Information

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5
Additional Features
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TALK
- This terminal is an active low input, used to cancel the current playing message. When connected
to the
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TALK
output terminal on the C921BA base station, it allows the operator to remotely cancel the
playing message by pressing and holding the headset or intercom TALK button for at least one second.
*Note
When using a C960/C860 headset, the message will not play when operating in Talk-Lock mode.
AUDIO_OUT – This terminal is used in conjunction with the microphone mute feature, SW2 number 8.
The AUDIO_OUT terminal on the A300 sends the currently playing audio message to the AUDIO_IN
terminal of the intercom so that the message from the A300 is heard in the headset or intercom if the
microphone mute feature is ON.
System Checkout and Balancing
The system checkout of the A300 Audio Greeter can be completed by following the steps below:
1. Plug the +12VDC power supply into an electrical outlet and connect power plug into J5.
2. Turn the power switch on. Make sure the A300 completes its boot-up cycle. (Each LED will flash once,
then the unit will beep 3 times).
3. Press the MODE button until the RECORD light comes on. Record a message in all four message locations.
4. Press the MODE button until the MONITOR light comes on. Play each message by pressing the MESSAGE
SELECT number button and pressing PLAY NOW button. Also press the MONITOR VOLUME arrow
buttons to change the volume of the messages.
5. Select all the messages by pressing all the MESSAGE SELECT number buttons. Test the ALTERNATE
MESSAGES function by pressing the ALTERNATE MESSAGES ON button and the PLAY NOW button
several times. Verify that each time the PLAY NOW button is pressed that the next message is played until
the first message is played again. While a message is playing press the CANCEL button to verify that the
message stops.
6. Verify that the vehicle detector is operating properly by having a vehicle drive into the vehicle detection
area. The VEHICLE LED should illuminate when the vehicle is detected, and go off when the vehicle
leaves.
7. Press the MODE button until the PLAY light comes on to test messages at the menu sign. Select all the
messages by pressing all the MESSAGE SELECT number buttons.
8. Stand near the outside menu sign speaker and have a vehicle drive into the vehicle detection area to verify
that all the messages play at the speaker. Also have someone inside the building press the PLAY NOW and
CANCEL buttons to verify their operation.
9. Have the person inside press the MESSAGE DELAY ON button. Drive the vehicle through the vehicle
detection area and verify that the message is delayed by the correct preset delay time.
10. Adjust potentiometer MENU SPKR VOL, located on the left side of the A300, to control the menu sign
message volume. Also press the DAY/NIGHT button while playing a message to verify the night-time menu
sign message volume.
11. For 3M C760/C960 Systems only. Adjust potentiometer AUDIO OUT to set the message volume in the
headset/intercom.
Note:
Potentiometer AUDIO OUT is only used to set the message volume for the convenience of the
headset/intercom operator. Therefore, to reduce operator fatigue, adjust AUDIO OUT to set the message
volume so it is barely audible in the headset/intercom.
12. Attach the Wire Cover plate using the hardware supplied.
13. Attach the Operating Instructions Placard to a nearby wall, if possible, using an appropriate mounting
method.