Full Text Searchable PDF User Manual

Audio Greeter
Model A300
Installation Instructions
Package Contents
Quantity Description
1
Model A300 Audio Greeter, Part No. 78-9236-6457-3
1
Power Supply; +12 VDC @ 800 mA, Plug-in, Part No. 78-8095-0976-9
1
Microphone; High Sensitivity Electret Condenser, 3.5 mm Stereo Plug, Part No. 78-8095-0928-7
1 Wire
Cover
1
Installation Instructions, Part No. 78-6912-0717-5
1
Operating Instructions, Part No. 78-6912-0714-2
1
Operating Instructions Placard; Wall Mount, Part No. 78-6912-0721-7
1 Warranty
Card
1
Receiving Report Card
Please check for shipping damage. Notify the shipping company immediately if any damage is found. Retain all packaging and
components for inspection by the shipping company.
Introduction
The 3M™ Audio Greeter, Model A300, is designed for use with intercom systems. A typical application is use in a quick
service drive-thru restaurant to play digitally stored messages through a menu speaker.

2
Installation
Determining the Best Location for the A300 Audio Greeter
The A300 should be mounted on a vertical wall about 60 inches high. If the user must bend over a countertop to
reach the A300, then lower it to 50 inches so the user can speak directly into the on-board microphone.
A quiet location is recommended if frequent voice recording is anticipated. A nearby manager's office or other
enclosed room would be ideal. Cable runs over 35 feet should be avoided to reduce signal degradation.
Mounting Hardware (not supplied)
4 each, #8 screws
4 each, wall anchors
Mounting the A300 Audio Greeter
Before mounting the A300 to the wall, we recommend that you attach all the cables to the A300 while it rests on a
countertop or a chair near its mounting surface. This allows easy access to all jumpers and controls with the cover
open.
1. Remove the A300 cover and unplug the switch panel ribbon cable from the main circuit board.
2. Place the A300 at the desired location 50" to 60" high. Mark the locations of the four holes in the base onto
the mounting surface.
3. Using appropriate mounting hardware (not supplied), attach the A300 base to the mounting surface.
4. Plug the ribbon cable into the main circuit board and attach the cover.
5. Clean the left-hand side of the cover with denatured alcohol and attach the external microphone holder using
the double-stick tape provided.
6. Attach the wire cover to the right side of the A300 using the screws provided.
!
Important
If it is necessary to operate the A300 with the cover removed while it is
mounted on a vertical wall, do not allow the cover to hang from the switch
panel ribbon cable. The cover may rest on the top edge of the base plate,
but make sure it doesn't fall off.
Installation Diagrams
Figure 1. “Installing the A300 Audio Greeter with the 3M D-15 Intercom”
Figure 2. “Installing the A300 Audio Greeter with the 3M Interconnect Module”
Figure 3. “Installing the A300 Audio Greeter with the 3M C762AA/BA/C921AA Base Station”
Figure 4. “Installing the A300 Audio Greeter with the 3M C921BA Base Station”
Figure 5. “Installing the A300 Audio Greeter with the HME SYS2500D/DS/DSL Base Station”
Figure 6. “Installing the A300 Audio Greeter with the HME WBS2000 Base Station”
Figure 7. “Installing the A300 Audio Greeter with the Panasonic WX-C510/WX-C1010 Base Station”
Figure 8. “Optional Installation with the HME or Panasonic Base Station”
Figure 9. “Installing the A300 Audio Greeter with an Intercom Using an Outside Speaker/Microphone”
Figure 10. “Installing the A300 Audio Greeter with the 3M Sodar Vehicle Detector”

3
Configuration
The Operating Modes and Message Delay Times of the A300 are set with jumper JMP1 and DIP switches SW2 and
SW3 located on the circuit board. Tables 1 and 2 list the switch settings.
Vehicle Detect Configuration
JMP1
Position A
- Position A is the default selection for most 3M Intercom installations.
Position B
- Position B is used when an optional relay must be added to trigger the A300. An optional relay may
be required in cases where the HME or Panasonic intercom triggers an external service timer. (See Figure 8)
Note:
When JMP1 is in position B, a +5Volt pull-up voltage is applied to VEH DET + (J9 terminal 8). Then, a
contact closure between VEH DET - (J9 terminal 9) and COM (J9 terminal 3, 6 or 11) will initiate a vehicle
detect trigger.
Mode Configuration
SW2
A description of each mode follows. Table 1 lists the DIP switch settings.
Message 4 External Trigger
When SW2 number 1 is ON, the fourth message can only be played to the outside menu speaker when
triggered from MSG4TRG, connector J9-10. The trigger signal should be a contact closure from
MSG4TRG to COM (i.e. fire alarm, etc.).
Automatic message Repeat
When SW2 number 2 is ON, the selected message(s) will continuously repeat when triggered by a vehicle
detect signal. The message(s) will stop when the vehicle detect signal is disengaged.
Note:
The Automatic Message Repeat will only work with a presence-type vehicle detector (i.e. Loop
detector, Sonic detector).
Vehicle Detect Trigger Polarity
When SW2 number 3 is OFF, the A300 will be triggered by a positive going (low to high) vehicle detect
signal. When SW2 number 3 is ON, the A300 will be triggered by a negative going (high to low) vehicle
detect signal.
Pulse/Presence Vehicle Detector
When SW2 number 4 is OFF, the A300 requires a presence-type vehicle detect signal (i.e. Loop detector).
When SW2 number 4 is ON, the A300 requires a pulse-type vehicle detect signal (i.e. air switch).
Timer Trigger Polarity
When SW2 number 5 is OFF the TTL output at TIMER TRG, connector J9-12 will be a positive going
(0.8V to 5.0V) signal when triggered by a vehicle detect signal. When SW2 number 5 is ON the TTL
output at TIMER TRG will be negative going (5.0V to 0.8V) when triggered by a vehicle detect signal.
Music Mode
When SW2 number 6 is ON, the A300 will play music at the menu speaker when a message is not
playing. The input music source must have its own balanced output power amplifier and volume control
capable of driving the 4 – 8 ohm balanced menu speaker. When SW2 number 6 is ON, the A300 will
pass audio from the music source to the menu speaker. When a vehicle triggers the A300, the music will
be interrupted while the greeter plays its message(s). The music will resume playing at the menu speaker
2 minutes after the vehicle detect signal is disengaged. Note:
Use this feature only with the 3M C921BA
Base Station.
Menu Microphone Mute
When SW2 number 8 is ON, the inbound audio from the Menu Microphone will be muted while the
A300 plays message(s) to the Menu Speaker.
The message(s) can only be heard if the A300 AUDIO OUT
line is connected to the C760/C960 AUDIO IN line (use AUDIO OUT potentiometer on A300 to adjust
message volume)
. When SW2 number 8 is OFF, in full duplex operation, the A300 message will be heard
through the menu microphone while the message is being played through the menu speaker.

4
Position
Number
ON Position
OFF Position
1
Message 4 External Trigger Activated
* Message 4 External Trigger Deactivated
2
Automatic Message Repeat ON
* Automatic Message Repeat OFF
3
Vehicle Detect Trigger Polarity Negative
* Vehicle Detect Trigger Polarity Positive
4
Pulse Detector
* Presence Detector
5
Timer Trigger Polarity - Negative
* Timer Trigger Polarity - Positive
6
Music Mode ON
* Music Mode Off
7
Not Used
Not Used
8
Menu Microphone Mute ON
* Menu Microphone Mute OFF
* Default Factory Settings
Table 1. 3M Audio Greeter SW2 Mode Configuration
Message Delay Timer Configuration
The message delay timer is set with SW3. Table 2 lists the switch setting for each message delay time.
Position
Number 1
Position
Number 2
Position
Number 3
Position
Number 4
Message Delay
(Seconds)
OFF OFF OFF OFF 0
OFF OFF OFF ON 1
OFF OFF ON OFF 2
* OFF
* OFF
* ON
* ON
* 3
OFF ON OFF OFF 4
OFF ON OFF ON 5
OFF ON ON OFF 6
OFF ON ON ON 7
ON OFF OFF OFF 8
ON OFF OFF ON 9
ON OFF ON OFF 10
ON OFF ON ON 11
ON ON OFF OFF 12
ON ON OFF ON 13
ON ON ON OFF 14
ON ON ON ON 15
* Default Factory Settings
Table 2. 3M Audio Greeter SW3 Message Delay Timer Configuration
Additional Features
______
TALK
-
This terminal is an active low input, used to cancel the current playing message. When connected to the
______
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.
A short tap of the TALK button
will cancel only the alert tones, allowing the message to continue and be heard in the headset/beltpack.
*Note
1. If Talk Lock
IS
used, you must disconnect the wire from the
______
TALK
terminal on the base station.
2. If talk Lock
IS NOT
used, you must connect the wire from the
______
TALK
terminal on the base station.
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.

5
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.

6
Installation Diagrams
Model 478DA "D-15"
Menu Post
INTERCOM SPKR
COM
INTERCOM MIC
INTERCOM MIC
MENU SPKR
INTERCOM SPKR
9
10
8
7
6
5
4
3
2
1
COM
MENU MIC
MENU MIC
MENU SPKR
VEH DET+
COM
COM
_____
TALK
AUDIO OUT
3
4
5
6
7
2
1
8
9
10
11
12
VEH DET-
MSG4 TRIG
COM
TIMER TRIG
MENU SPKR
MENU MIC
COM
*
VEH DET
MENU SPKR
MENU SPKR
SHIELD
MIC
MIC
J9
J10
A300 Audio Greeter
Optional Service Timer
VEHICLE
DETECTOR
RED
BLUE
BLK/BLU
BLK/WHT
BROWN
BLK/GRN
BLK/YEL
YELLOW
BLK/RED
WHITE
BLK/BRN
WHITE/ORG
RED/WHT
ORANGE
GREEN
BLK/ORG
GREEN/ORG
RED/GRN
1 MONITOR HI
7 FLEX MIC
8 FLEX MIC
10 VEH. DETECT
11 ALERT CANCEL
6 OUTSIDE MIC
4 COMMON
3 COMMON
2 MONITOR LOW
9 SHIELD
12 BUSY
13 +20 VDC
14 FOOT SW
15 MUSIC IN
5 OUTSIDE MIC
16 MUSIC IN
17 SPEAKER
18 SPEAKER
*
Note:
VEH DET is active high.
Set A300 vehicle detector
trigger polarity to positive.
(set SW2 number 3 OFF)
(set jumper JMP1 to A)
**
MUSIC
**
MUSIC
**
Note:
MUSIC input requires a
balanced audio source
Figure 1. Installing the A300 Audio Greeter with the 3M D-15 Intercom

7
INTERCOM SPKR
COM
INTERCOM MIC
INTERCOM MIC
MENU SPKR
INTERCOM SPKR
9
10
8
7
6
5
4
3
2
1
COM
MENU MIC
MENU MIC
MENU SPKR
VEH DET+
COM
** MUSIC
COM
_____
TALK
AUDIO OUT
3
4
5
6
7
2
1
8
9
10
11
12
VEH DET-
MSG4 TRIG
COM
TIMER TRIG
** MUSIC
Add jumper wire
*
VEH DET SIG
J9
J10
3M A300
Audio Greeter
3M Interconnect Module
*
Note:
VEH DET SIG is active
high. Set A300 vehicle
detector trigger polarity to
positive. (set SW2 number
3 OFF)
(set jumper JMP1 to A)
Menu Post
MENU
MIC
MENU
SPKR
OSM
OUTSIDE
MIC
SHLD
COM
MON
SPKR
10
7
6
5
4
3
2
1
8
9
TO OUTSIDE
COM
SIGNAL
+18 VDC
VEH DET
LOOP
DET
VEHICLE
DETECTOR
**
Note:
MUSIC input requires a
balanced audio source
Figure 2. Installing the A300 Audio Greeter with the 3M Interconnect Module

8
C762AA/BA/C921AA Base Station
Menu Post
INTERCOM SPKR
COM
INTERCOM MIC
INTERCOM MIC
MENU SPKR
INTERCOM SPKR
9
10
8
7
6
5
4
3
2
1
COM
MENU MIC
MENU MIC
MENU SPKR
VEH DET+
COM
** MUSIC
COM
_____
TALK
AUDIO OUT
3
4
5
6
7
2
1
8
9
10
11
12
VEH DET-
MSG4 TRIG
COM
TIMER TRIG
** MUSIC
MON SPKR
COM
AUDIO OUT
ALT ALERT
MENU SPKR
MENU SPKR
SHIELD
MIC
MIC
AUDIO IN
VEH DET
ALERT OUT
COM
12V UNREG
MENU SPKR
MENU MIC
COM
* VEH DET
AUDIO IN
MENU SPKR
MENU SPKR
SHIELD
MIC
MIC
J9
J10
A300 Audio Greeter
Optional Service Timer
VEHICLE
DETECTOR
*
Note:
VEH DET is active high.
Set A300 vehicle detector
trigger polarity to positive.
(set SW2 number 3 OFF)
(set jumper JMP1 to A)
**
Note:
MUSIC input requires a
balanced audio source
Figure 3. Installing the A300 Audio Greeter with the 3M C762AA/BA/C921AA Base Station

9
C921BA Base Station
Menu Post
INTERCOM SPKR
COM
INTERCOM MIC
INTERCOM MIC
MENU SPKR
INTERCOM SPKR
9
10
8
7
6
5
4
3
2
1
COM
MENU MIC
MENU MIC
MENU SPKR
VEH DET+
COM
** MUSIC
COM
_____
TALK
AUDIO OUT
3
4
5
6
7
2
1
8
9
10
11
12
VEH DET-
MSG4 TRIG
COM
TIMER TRIG
** MUSIC
MON SPKR
COM
AUDIO OUT
ALT ALERT
MENU SPKR
MENU SPKR
SHIELD
MIC
MIC
AUDIO IN
VEH DET
ALERT OUT
COM
MENU SPKR
MENU MIC
COM
*
VEH DET
AUDIO IN
MENU SPKR
MENU SPKR
SHIELD
MIC
MIC
J9
J10
A300 Audio Greeter
Optional Service Timer
12V UNREG
_____
TALK
COM
_____
PAGE
________
VEH DET
_____
TALK
VEHICLE
DETECTOR
*
Note:
VEH DET is active high.
Set A300 vehicle detector
trigger polarity to positive.
(set SW2 number 3 OFF)
(set jumper JMP1 to A)
**
Note:
MUSIC input requires a
balanced audio source
Figure 4. Installing the A300 Audio Greeter with the 3M C921BA Base Station

10
INTERCOM SPKR
COM
INTERCOM MIC
INTERCOM MIC
MENU SPKR
INTERCOM SPKR
9
10
8
7
6
5
4
3
2
1
COM
MENU MIC
MENU MIC
MENU SPKR
VEH DET+
COM
** MUSIC
COM
_____
TALK
AUDIO OUT
3
4
5
6
7
2
1
8
9
10
11
12
VEH DET-
MSG4 TRIG
COM
TIMER TRIG
** MUSIC
* VEH DET GND
RED
BLACK
SHLD
J9
J10
3M A300
Audio Greeter
HME SYS2500D/DS/DSL
Base Station
*
Note:
Set SW2 number 3 OFF, set
jumper JMP1 to Position B.
Terminals 6 and 9 may also
be used for a contact-closure
connection (see Figure 7 for
reference).
Menu Post
MENU
MIC
MENU
SPKR
VEH DET SIG
RED
14
4
5
6
7
8
9
10
BLACK
WHITE
GREEN
VEH DET GND
10
9
8
7
6
11
12
5
OUTPUT
J1
J7
SHLD
13
BLACK
RED
VEHICLE
DETECTOR
GND
OUTSIDE
SPEAKER
SPKR/MIC
* VEH DET SIG
**
Note:
MUSIC input requires
a balanced audio
source
Figure 5. Installing the A300 Audio Greeter with the HME SYS2500D/DS/DSL Base Station

11
INTERCOM SPKR
COM
INTERCOM MIC
INTERCOM MIC
MENU SPKR
INTERCOM SPKR
9
10
8
7
6
5
4
3
2
1
COM
MENU MIC
MENU MIC
MENU SPKR
VEH DET+
COM
** MUSIC
COM
_____
TALK
AUDIO OUT
3
4
5
6
7
2
1
8
9
10
11
12
VEH DET-
MSG4 TRIG
COM
TIMER TRIG
** MUSIC
* VEH DET GND
RED
BLACK
SHLD
J9
J10
3M A300
Audio Greeter
**** HME WBS2000
and WBS2000A
Base Station
*
Note:
Set SW2 number 3 OFF, set jumper JMP1 to Position B.
Terminals 6 and 9 may also be used for a contact-closure
connection (see Figure 7 for reference). This would be the
case if the HME2000 uses an external vehicle detector.
Menu Post
MENU
SPKR
VEH DET SIG
SHIELD
SPKR
SPKR
VEH DET GND
TB1
* VEH DET SIG
**
Note:
MUSIC input requires
a balanced audio
source
***
Note:
Set J5 on WBS2000
audio board to Negative:
Veh not present = open
Veh present
= short
GREEN
WHITE
BLACK
***
RED
****
Note:
2000 and 2000A are half-duplex
2000D is duplex
TB1 = SPKR = mic input
TB4 = SPKR = (outbound)
(TB4) may be unlabeled
Figure 6. Installing the A300 Audio Greeter with the WBS2000 Base Station

12
INTERCOM SPKR
COM
INTERCOM MIC
INTERCOM MIC
MENU SPKR
INTERCOM SPKR
9
10
8
7
6
5
4
3
2
1
COM
MENU MIC
MENU MIC
MENU SPKR
VEH DET+
COM
** MUSIC
COM
_____
TALK
AUDIO OUT
3
4
5
6
7
2
1
8
9
10
11
12
VEH DET-
MSG4 TRIG
COM
TIMER TRIG
** MUSIC
DET COM
*
DET H
RED
BLACK
SHLD
J9
J10
3M A300
Audio Greeter
Panasonic
WX-C510/WX-C1010
Base Station
* Note:
Set SW2 number 3 OFF, set
jumper JMP1 to Position B.
Terminals 6 and 9 may also
be used for a contact-closure
connection (see Figure 7 for
reference).
Menu Post
MENU
MIC
MENU
SPKR
C
COM
GND
AC
AC
H
H
C
GND
H
H
C
MI
C
SP
/M
IC
SP
D
E
T
1
2
V
A
C
VEHICLE
DETECTOR
IN
COM
V/DET
(WX-C1010)
**
Note:
MUSIC input requires a
balanced audio source
Figure 7. Installing the A300 Audio Greeter with the Panasonic WX-C510/WX-C1010 Base Station
HME or Panasonic Base
Station
A300 Audio Greeter
VEH DET+
8
9
VEH DET-
J9
+Vcc (12 to 20VDC)
Note: Place JMP1 in Position B
7
6
COM
Optional 12VDC
Relay
VEHICLE
DETECTOR
Figure 8. Optional Installation with the HME or Panasonic Base Station

13
Below is an example of the A300 connected to a typical intercom using an Outside Speaker/Microphone
(OSM): Use the appropriate vehicle detector connections to complete the installation.
Intercom
Menu Post
INTERCOM SPKR
COM
INTERCOM MIC
INTERCOM MIC
MENU SPKR
INTERCOM SPKR
9
10
8
7
6
5
4
3
2
1
COM
MENU MIC
MENU MIC
MENU SPKR
MON SPKR
COM
MENU SPKR
MENU SPKR
SHIELD
MIC
MIC
MENU SPKR
MENU SPKR
J10
A300 Audio Greeter
Intercom
Menu Post
MON SPKR
COM
MENU SPKR
MENU SPKR
SHIELD
MIC
MIC
MENU SPKR/MIC
MENU SPKR/MIC
Figure 9. Installing the A300 Audio Greeter with an Intercom Using an Outside Speaker/Microphone

14
714AA SODAR
A300 Audio Greeter
VEH DET+
8
9
VEH DET-
J9
PRESENCE
4
3
GRD
Note: If 714AA contains optional relay,
use terminals 8 and 9.
Note: If 714BA contains optional relay,
use terminals 9 and 10.
714BA SODAR
A300 Audio Greeter
VEH DET+
8
9
VEH DET-
J9
HI
6
5
GND
Figure 10. Installing the A300 Audio Greeter with the 3M Sodar Vehicle Detector
A300 Audio Greeter Troubleshooting Guide
Problem Possible
Cause
Solution
1. Low outbound volume to
the menu sign speaker.
1. The NIGHT STATUS light
on.
2. The MENU SPKR VOL
potentiometer is set too low.
3. Defective menu speaker or
A300.
1. Press the DAY/NIGHT button until the
NIGHT STATUS goes off.
2. Increase the setting of the MENU
SPKR VOL potentiometer, located on
the left side of the A300.
3. Measure resistance of speaker and
verify that it works properly. If not call
for authorized service.
2. Cannot
record
message.
1. External microphone not
connected.
2. External
microphone
defective.
1. Verify that external microphone plug is
fully inserted into microphone jack J6.
2. Use internal microphone (internal
microphone is automatically selected
when external microphone is
unplugged).
3M
Food
Services
Trade
Department
Printed in U.S.A.
3M Center
3M 2002
St. Paul, MN 55144-1000
78-6912-0717-5 Rev. G