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