
MMI-BUS devices
Mounting and installation, Technical Description, T 811 086 en e
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7.6
B3-MMI-UIO universal input/output module
The B3-MMI-UIO is primarily used for controlling layout plan and repeat signal boards of the SecuriFire system. It can also
be used by the SCP remote input/output module for polling potential-free contacts and keys and for controlling unmonitored
horns, lamps, relays etc. Depending on its use, the B3-MMI-UIO is integrated in the concerned boards or branch sockets.
The system connection is via the MMI-BUS.
If the 64 possible LED outputs (type: repeat signal) of a B3-MMI-UIO are insufficient for actuation of a layout plan board or
parallel indicator board, it is possible to cascade up to 8 pcs. B3-MMI-UIO on an MMI-BUS.
More information about the B3-MMI-UIO can be found in the Technical Description T 811 112.
7.6.1
Interfaces
X1
MMI bus connector plug
X2
Power supply
X3
Connection for layout plan board or parallel indicator board
X4
Connection for layout plan board or parallel indicator board
X5
Transistor outputs
X6
Opto-isolator inputs
X7
MMI bus A jumper
X8
MMI bus B jumper
X10
Jumper for audible reset
S1
Rotary switch for MMI bus address
Fig. 94 B3-MMI-UIO interfaces
7.6.2
MMI bus power supply connector plug (X1) and power supply (X2)
X1
MMI bus connector plug
X2
power supply
X1
BUSA+
BUSB+
BUSA-
BUSB-
BUSGNDA
BUSGNDB
BUSGNDA
BUSGNDB
BUSB+
BUSA+
BUSA-
BUSB-
1
MMI-BUS A cabel
MMI-BUS B cabel
2nd core pair
or shield
2nd core pair
or shield
X2
1
+24VA
+24VB
+24VA
+24VB
GNDA
GNDB
GNDA
GNDB
MMI power supply A
MMI power supply B
Terminal
Designation
Terminal
Designation
1
BUSGNDB
1
MMIGNDB
2
MMIBUSB-
2
MMI+24VB
3
3
MMIGNDB
4
BUSGNDB
4
MMI+24VB
5
MMIBUSB-
5
MMIGNDA
6
6
MMI+24VA
7
BUSGNDA
7
MMIGNDA
8
MMIBUSA-
8
MMI+24VA
9
10
BUSGNDA
11
MMIBUSA-
12
Fig. 95 MMI bus power supply connector plug (X1) and power supply (X2)