Interface specifications – Westermo RFR-212-FB User Manual
Page 8
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6641-2223
Interface specifications
Power
Rated voltage
24 to 110 VDC
Operating voltage
16.8 to 143 VDC
(14.4 to 154 VDC for 100 ms)
Rated current
(using Westermo USB plug)
470 mA @ 24 VDC
130 mA @ 110 VDC
Inrush current
5 mA²s @ 24 VDC
79 mA²s @ 110 VDC
Startup current
(Power source capability)
600 mA @ 24 VDC
250 mA @ 110 VDC
Polarity
Reverse polarity protected
Redundant power input
No
Isolation to
All interfaces and chassis
Galvanic connection to
None
Connection
M12 A-coded male
Connector size
0.2 – 2.5 mm² (AWG 24 – 13)
Shielded cable
Not required
Shielded cable
Not required
Miscellaneous
–
M12 A-Coded Power Connector
Position
Direction Description
2
1
3
4
1
U+
Positive supply voltage
2
–
–
3
0 V
0 V
4
–
–
Housing
Shield
Chassis of product (ground)
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