Cisco MWR-1941-DC-2T1 Hardware Installation Guide - Page 24

Overview of MWR 1941-DC Power Supply - parts

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Overview of MWR 1941-DC Power Supply Chapter 1 Overview of the Cisco MWR 1941-DC Router 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 lists DC power supply specifications of the Cisco MWR 1941-DC router. Table 1-1 Cisco MWR 1941-DC Power Supply Specifications Specification Input voltage, DC power supply +27/-48 VDC +27/-48 VDC (±20 to 60 VDC supply tolerance) universal power supply Maximum input current 3.5A Note If the input voltage drops below 18.5 VCD, the router will go into shut down mode. Wire gauge for DC-input power connections 18 AWG Power Dissipation 70 W (maximum) 35 W (typical) 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 1-2 and Table 1-3 list the pinout configurations for the connector based on power source. Table 1-2 Power Supply Connectors Pinout-+27 VDC Application PIN +27 VDC Power Source 1 +27 VDC 2 Ground 3 RTN Table 1-3 Power Supply Connectors Pinout--48 VDC Application PIN -48 VDC Power Source 1 RTN 2 Ground 3 -48 VDC Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide 1-8 78-15827-06B0

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1-8
Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide
78-15827-06B0
Chapter 1
Overview of the Cisco MWR 1941-DC Router
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
lists DC power supply specifications of the Cisco MWR 1941-DC router.
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 1-2
and
Table 1-3
list the pinout configurations for the connector based on power source.
Table 1-1
Cisco MWR 1941-DC Power Supply Specifications
Specification
+27/-48 VDC
Input voltage, DC power supply
Maximum input current
Note
If the input voltage drops
below 18.5 VCD, the router
will go into shut down
mode.
+27/-48 VDC (±20 to 60 VDC
supply tolerance) universal power
supply
3.5A
Wire gauge for DC-input power
connections
18 AWG
Power Dissipation
70 W (maximum) 35 W (typical)
Table 1-2
Power Supply Connectors Pinout—+27 VDC Application
PIN
+27 VDC Power Source
1
+27 VDC
2
Ground
3
RTN
Table 1-3
Power Supply Connectors Pinout—-48 VDC Application
PIN
-48 VDC Power Source
1
RTN
2
Ground
3
-48 VDC