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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.
Primary 2Mx Unit
Figure 17 - N+1 Tap PCB CAT6A connections
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..
+48 V
0 V
High Speed
Low Speed
Amp Bus
Sync Bus
Ampli er Bus
Bottom
Top
Primary 2Mx
Bottom
Top
Bottom
Top
Secondary 2Mx
Fault
48V
O/P
DC
Default
N/C
I/P
Com
Con g
+ -
Primary 2Mx
Beacon Bus
Bottom
Top
SONIX 2MX TECHNICAL MANUAL TM370 / A June 2022 www.eaton.com
Primary 2Mx
Bottom
Top
Sonix 2Mx Technical Manual
Amp Bus
Secondary 2Mx Unit
Fault
48V
O/P
DC
Default
N/C
I/P
Com
Con g
+ -
Secondary 2Mx
Fault
48V
O/P
DC
Default
N/C
I/P
Com
Con g
+ -
Primary 2Mx
Ampli er Bus
Bottom
Top
Primary 2Mx
Bottom
Top
Sync Bus
Unit #1
Unit #2
Unit #N
19
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