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The TM-4 Transmitter Module provides three reverse polarity outputs that communicate Alarm, Trouble and Supervisory
FACP (Fire Alarm Control Panel) messages to a remote station, or it can function as a Fire Municipal Box Trip output. It is
compatible with NFS series control panels and the NCA Network Control Annunciator, and communicates through the
EIA-485 ACS interface. It mounts easily in standard module locations within the cabinet or an external box.
Note: All wiring is power-limited and supervised except for the Municipal
Box connection, which is not power-limited, but is supervised for open
circuits and ground faults. Remote Station and Municipal Box connections
are not to be used simultaneously. Remote Station connections are
supervised by the remote station.
Chassis
Ground
Non-resettable, power-limited
+24 VDC
Common (-)
LED2 - ACS
Transmit LED
LED1 - ACS
Receive LED
LED4 - Power LED
SW2 Address Switch
(Tens)
Shown set to 2 .
The TM-4 address is set
to 28 in this illustration.
SW3 Address Switch
(Ones)
Shown set to 8.
LED3 - Trouble LED
TM-4 Instructions P/N 51490:A 7/02/01
Introduction
-
ACS
+
ACS
TB 2
+
-
AC S
AC S
T 3
B
R E F
+ 24V D C
E L R
TX A C S
R X ACS
LE D2
LE D1
P O W ER
LE D4
S 2
W
S 3
W
LE D3
TR O U B LE
Figure 1 TM-4 Board Layout
+
-
Remote Station Alarm
Not Used
R E F
R EM O TE
R EM O TE
R EM O TE
M U N IC IPAL
BO X
STATIO N
STATIO N
STATIO N
S 1
W
ALAR M
T RO UBLE
SU PER VISO RY
S W 5
S W 4
D IS A B L E
E N A B L E
TM-4
Transmitter Module
Product Installation Document
P/N 51490 Rev A 7/02/01
ECN 01-253
+
-
Remote Station Trouble
+
-
Remote Station Supervisory
-
Municipal Box
+
TB1
SW1 - EOL (End-of-
line) Resistor
switch pictured in
OFF position.
SW4 - Disable All
Outputs switch pic-
tured in Disable posi-
tion.
SW6 - Isolator
Switch isolates or
non-isolates the
Municipal Box out-
put. Shown in Iso-
lated position.
S 5
W
SW5.4 - Combine Alarm and
Trouble Signals Switch,
shown in ON position.
SW5.3 - Panel Signal Silence
Function Switch Shown in OFF
position.
SW5.1, and SW5.2 - Not used. Leave
switches in factory-set position (as
shown)
1
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