
P
AGE
13 of 30
M
ODEL
10959-00
X
W
ALL
-M
OUNT
A
UDIO
M
ESSENGER
I
NTERFACE
42004-344i
d:\standard ioms - current release\42004 instr. manuals\42004-344i.doc
01/06
Terminal Labeled
Description
Function
TB4-1
GND
Data (Gnd)
TB4-2
-
Data (-)
TB4-3
+
Data (+)
No customer connections
TB4-4
FLT
Fault (output)
If the AMI is operating normally, this output is active low
and can sink 100 mA maximum to external relay or
monitoring circuit. If fault is detected within the AMI, this
output switches off and stops current flow to the external
device. Refer to Figure 6 for typical connection.
TB4-5
REBOOT
System reboot
When AMI is operating, this pin is 5 V dc. To reboot the
AMI, momentarily connect this pin to TB4-6.
Refer to Figure 5 for typical connection.
TB4-6
GND
Power ground
Power supply common.
TB4-7
Relay (N.O.)
TB4-8
.
Relay (com)
Solid state relay closure. On resistance = 30 ohms
When AMI is playing a message, this contact is closed.
TB5 - Auxiliary Audio
The TB5 connector (labeled
AUX)
provides connections for the following auxiliary audio inputs:
Terminal Labeled
Description
Function
TB5-1
IN
Mic Input (hi)
TB5-2
COM
Mic Input (low)
Reserved for future connection for external noise-sensing
microphone.
TB5-3
Ground
Microphone cable shield termination.
TB5-4
Spare
TB5-5
Spare
TB5-6
Spare