2.4.2 Power Supply Wiring - Siemens SIMATIC NET RUGGEDCOM M969 Installation Manual

2.4.2 Power Supply Wiring
The following illustrates how to connect the RUGGEDCOM M969 to a single or dual
power supplies.
Note
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Single HI AC Power Supply Wiring
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RUGGEDCOM M969
Installation Manual, 01/2021, C79000-G8976-1039-03
Terminal #
4 PS2 Neutral/-
5 PS2 Live/+
For 100-240 VAC rated equipment, a 250 VAC appropriately rated circuit breaker
must be installed.
For 88-300VDC rated equipment, a 300VDC appropriately rated circuit breaker
must be installed.
A circuit breaker is not required for 12, 24 or 48 VDC rated power supplies.
For dual power supplies, separate circuit breakers must be installed and
separately identified.
When equipped with two HI voltage power supplies, independent AC sources can
be used to power the product for greater redundancy.
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M23 Power Connector
Description
bus for DC inputs. This terminal is connected to
chassis ground internally.
An additional chassis ground screw is also present
that connects chassis ground to both power
supply surge grounds via a removable jumper.
For more information about the jumper, refer to
"Disabling Line-to-Ground Transient Protection
(Page
PS2 Neutral/- is connected to the negative (-)
terminal if the power source is DC or to the
(Neutral) terminal if the power source is AC.
PS2 Live/+ is connected to the positive (+)
terminal if the power source is DC or to the (Live)
terminal if the power source is AC.
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Installing the Device
2.4.2 Power Supply Wiring
Usage
16)".
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