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2.3 Mounting/Wiring an Optional
Monitor Module
An MMF-300 monitor module may be mounted inside the
cabinet. This can be used for HVAC shutdown
applications when the monitor module is connected to the
FACP SLC polling loop. The monitor module is wired to
TB4 on the RPU and is activated by the 9th button on the
RPU keypad. The module's LED is visible through the
keypad next to the 9th button.
1.
Remove the two (2) keps nuts that secure the RPU
board to the dress panel using a 5/16" socket.
2.
Set the SLC address on the MMF-300. Remove the
four (4) break-away tabs from the monitor module.
See Figure 4.
3.
Insert the bottom of the monitor module (SLC address
dials facing inward) into the mounting tabs on the left
side of the RPU. The RPU mounting screws will go
through the top of the monitor module. Situate the
LED on the front of the module over the hole in the
PC board.
4.
Replace the keps nuts over the mounting screws to
secure the monitor module to the board.
5.
Connect the SLC wiring to the module terminals 1 (–)
and 2 (+). Refer to the SLC Wiring Manual for more
information.
6.
Wire TB4 on the RPU to T6/T7 on the monitor
module as shown below. No ELR is required as it is
built into TB4.
Remove
SLC In
break-away
tabs (4) from
module
mounting
tabs
Figure 4 Wiring an MMF-300 to the RPU
2
SLC Out
+
-
LED on other
side of module
keps
nuts
TB4
3 Wiring
Connections are made from TB24, TB12, and TB22 on the
ECC-50/100 main control board to TB1, TB3, and TB2 on
the RPU. If the ECC-RPU is the last device on the audio
and data bus chain, signal terminations are required. For
the last device on the external data bus, a removable
jumper must be on pins 1 and 2 of JS4. If the ECC-RPU is
not the last device, the jumper must be on pins 2 and 3 of
JS4 as shown below. For the external audio riser,
termination (15K ohm resistor) must be connected to pins
4 and 5 on TB2. A ferrite clamp (P/N: 50116546-001)
must be installed around all wires in both the input and
output wire runs inside the RPU cabinet as shown below.
ECC main
control board
TB24
TB12
TB22
RPU board
TB1
1
IN
2
24V
3
OUT
4
5
TB3
1
IN
2
Data
3
OUT
4
5
JS4
(shown jumpered
TB2
on pins 2 and 3)
1
IN
2
Audio
3
OUT
4
5
Figure 5 Remote Page Unit Wiring
(Class B/Style Y)
ECC-RPU Installation Document — P/N LS10030-000FL-E:B 8/9/2013
external operator interface
power - 24VDC
+
-
external
data bus
B
A
external
audio
riser
+
-
ferrite clamp
+
-
+
-
B
A
B
A
+
-
+
-
to next operator interface/
amplifier or 15K ELR
(if last device)
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