Cisco MWR 1941-DC - 1941 Mobile Wireless Router Hardware Installation Manual page 24

Overview of MWR 1941-DC Power Supply
Overview of MWR 1941-DC Power Supply
The MWR 1941-DC router is equipped with a +27/-48 VDC universal power supply.
Table 1-1
Table 1-1
Specification
Input voltage, DC power supply
Maximum input current
Note
Wire gauge for DC-input power
connections
Power Dissipation
The Cisco MWR 1941-DC router uses a small, three-wire connector for input to the power supply. The
connector ships in the accessory kit and is Phoenix Contact part number 1756272.
With the connector installed in the chassis, the pins from top to bottom are 1, 2 and 3.
Table 1-3
Table 1-2
PIN
1
2
3
Table 1-3
PIN
1
2
3
Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide
1-8
lists DC power supply specifications of the Cisco MWR 1941-DC router.
Cisco MWR 1941-DC Power Supply Specifications
If the input voltage drops
below 18.5 VCD, the router
will go into shut down
mode.
list the pinout configurations for the connector based on power source.
Power Supply Connectors Pinout—+27 VDC Application
+27 VDC Power Source
+27 VDC
Ground
RTN
Power Supply Connectors Pinout—-48 VDC Application
-48 VDC Power Source
RTN
Ground
-48 VDC
Chapter 1
+27/-48 VDC
+27/-48 VDC (±20 to 60 VDC
supply tolerance) universal power
supply
3.5A
18 AWG
70 W (maximum) 35 W (typical)
Overview of the Cisco MWR 1941-DC Router
Table 1-2
78-15827-06B0
and