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Sonix 2Mx Technical Manual
SONIX 2MX TECHNICAL MANUAL
TM370 / A June 2022 www.eaton.com
7.3 N+1 systems
N+1 systems reduce the space and cabling requirements
while still providing redundancy by only duplicating units
inside a single rack. Hot standby amplifiers are used to
provide redundancy on 100V line and some input units
are fully duplicated.
Secondary 2Mx
Primary 2Mx
350-d Amplifier
350-d Amplifier
350-d Amplifier
Vw2 Beacon
Controller
Vw2 Beacon
Controller
Pbx
Access Panel
Access Panel
Access Panel
Fire &
Gas
Ms12
Io
Io
Hmi-T
u
Hmi-T
u
PABX
2Mx Central Controller
350-d Amplifier
350-d Amplifier
350-d Amplifier
Vw2 Beacon
Controller
Vw2 Beacon
Controller
Ms12
Access Panel
Access Panel
Access Panel
Fire &
Gas
Pbx
Io
Hmi-T
u
PABX
Sonix N+1 systems make use of Sonix AB+ feature
to provide full coverage rather than relying on crude
fail-over relays. This allows a fault in the primary 2Mx
without fully swapping over on to the secondary 2Mx.
Figure 16 - Example N+1 system
