3M A121 - Manual (Page 8)

8
Figure 8. Wiring for HME SYS2500D/DS/DSL Base Station with 3M A300 Audio Greeter
HME
SYS2500D/DS/DSL
Base Station
Menu Post
3M A121 Noise Reduction Module
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
** VEH DET SIG
WHITE
GREEN
SHLD
BLACK
RED
J9
J10
3M A300
Audio Greeter
MENU
MIC
MENU
SPKR
MENU
SPKR MENU
SPKR
MENU
SPKR MENU
SPKR
SHLD SHLD
MIC IN MIC OUT 1
2
3
4
5 5
4
3
2
1
VEHICLE
DETECTOR
MIC OUT MIC IN
MENU INTERCOM
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
GND
OUTPUT *
J1
J7
SHLD
13 BLACK
RED
** Note:
Set A300 vehicle detector
trigger polarity to negative (set
SW2 number 3 OFF and
JMP1 to Position B).
Terminals 6 and 9 may also
be used for a contact-closure
connection.
MENU SPKR
MENU SPKR
MIC OUT
MIC OUT
SPKR/MIC
OUTSIDE
SPEAKER