Installing the Device
2.6 Connecting Power
2.6
Connecting Power
The RUGGEDCOM RST916P features two input terminals that allow the device to be
powered by two independent DC power sources. Each power source must provide 54
VDC nominal output voltage.
Note
• Use minimum #16 gage copper wiring when connecting terminal blocks.
• Equipment must be installed according to applicable local wiring codes and
standards.
2.6.1
PoE Power Requirements
The RUGGEDCOM RST916P provides Power-over-Ethernet to devices connected to
ports 1 through 10. Requirements for the external power source(s) are dependent on
the IEEE 802.3 standard required by the application:
Input Range
Standard Watts/Port
Output
Power
Supply
Type
Minimum Maximum
Isolation Maximum
PoE Power
Required
Maximum
System
Power
Required
IEEE
802.3af/
at (Type 1)
15
DC
52 VDC
57 VDC
1.5
VAC/2.2
kVDC
150 W
180 W
IEEE
802.3at
(Type 2)
30
DC
52 VDC
57 VDC
1.5
VAC/2.2
kVDC
300 W
330 W
IEEE
802.3bt
(Type 3)
60
DC
52 VDC
57 VDC
1.5
VAC/2.2
kVDC
420 W
450 W
Note
For IEC 61850 compliance, use an IEC 61850 compliant PoE power supply with
power cabling no longer than 3 m (118 in).
Otherwise, Siemens recommends using the RUGGEDCOM RPS1300 switch-mode
AC power supply. For more information about this power supply, refer to
support.industry.siemens.com/cs/ww/en/view/109478699
.
Note
Power sources can be connected to either power supply terminal block on the device.
2.6.2
Connecting DC Power
The device features dual power supply inputs to allow for redundant connections
to separate, independent DC power supplies. Each power supply terminal block
14
RUGGEDCOM RST916P
Installation Manual, 04/2021, C79000-G8976-1489-01
