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Sonix 2Mx Technical Manual
SONIX 2MX TECHNICAL MANUAL
TM370 / A June 2022 www.eaton.com
7.3.1 N+1 Tap PCB
The N+1 tap PCB is added into the rack design to
improve amplifier and beacon controller monitoring on
the secondary 2Mx controller. Its function is two-fold,
first to provide a ‘copy’ of the amplifier/beacon status
replies and second to provide full coverage when the
primary 2Mx controller is disabled or powered down.
The CAT6A connections are shown in Figure 17. One
tap PCB is required for Amplifier Bus and a second
for Beacon Bus, if in use. The connections for the
beacon bus follow an identical pattern to amplifier bus
connections shown..
Unit #N
Unit #1
Unit #2
Amp Bus
Sync Bus
Secondary 2Mx Unit
Amp Bus
Sync Bus
Primary 2Mx Unit
Secondary 2Mx
Primary 2Mx
Amplifier Bus
Bottom Top
Bottom Top
Bottom Top
4
1
...
Primary 2Mx
48V
DC
I/P
+ -
Fault
O/P
N/C
Com
Default
Config
Secondary 2Mx
Primary 2Mx
Beacon Bus
Bottom Top
Bottom Top
Bottom Top
4
1
Secondary 2Mx
Primary 2Mx
Amplifier Bus
Bottom Top
Bottom Top
Bottom Top
4
1
0 V
+48 V
0 V
High Speed
Low Speed
+48 V
Secondary 2Mx
48V
DC
I/P
+ -
Fault
O/P
N/C
Com
Default
Config
Primary 2Mx
48V
DC
I/P
+ -
Fault
O/P
N/C
Com
Default
Config
Figure 17 - N+1 Tap PCB CAT6A connections
