Pub. 42004-442D
Models 10959-903 and 10959-904 Wall-Mount Audio Messenger Interface
Page 6 of 17
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Table 1. Audio Output Connection
Termination
PCBA Label
Internal
Terminal
Pin-Out
Function or ACT Description
600-
OHM
L1
TB3-1
600-ohm audio pair to distribution amplifier cabinet,
stanchion broadcast electronics module, addressable
amplified speaker, or other 600-ohm compatible device
600-
OHM
L2
TB3-2
AUDBUS2
L1
TB3-3
no connection
AUDBUS2
L2
TB3-4
AUDBUS1
L1
TB3-5
no connection
AUDBUS1
L2
TB3-6
PGND
TB3-7
no connection
RS485
INT
GND
TB3-8
no connection
RS485
INT−
TB3-9
RS485
INT+
TB3-10
Control Output
Terminal block
TB4
, labeled
SYSTEM
, is located on the termination PCBA. Connect the contact
closure output terminals
TB4-7
and
TB4-8
to the page control input on the addressable amplified speaker
or stanchion broadcast module.
Table 2. Control Output Connection
Termination
PCBA Label
Internal
Terminal
Pin-Out
Function or ACT Description
EXT
DATA
GND
TB4-1
no connection
EXT
DATA
−
TB4-2
no connection
EXT
DATA
+
TB4-3
FLT
TB4-4
no connection
REBOOT
TB4-5
no connection
GND
TB4-6
no connection
AUD
ACT
1
TB4-7
isolated solid state relay, closed during AMI broadcast
On resistance = 30 ohms
AUD
ACT
2
TB4-8
