Cisco Systems manual Compact Flash, Overview of Cisco MWR 1900 Power Supplies, Specification

Chapter 1 Overview of the Cisco MWR 1900 Router

Compact Flash

Compact Flash

One external Compact Flash (CF) device is used on the MWR 1900 router. The CF memory size can vary with a minimum size of 32Mbyte and a maximum size of 128Mbytes. This device is configured in memory mapped mode (PCMCIA) to allow for hot insertion. This device is required for the MWR 1900 router to function because the IOS image and troubleshooting logs reside on this device. For information about replacing or upgrading the CF, see the “Replacing or Upgrading the CF” section on page 3-10.

Overview of Cisco MWR 1900 Power Supplies

The MWR 1900 router is equipped with a +27 VDC power supply. The +27 VDC is typically used for cell base stations.

Table 1-1lists DC power supply specifications of the Cisco MWR 1900 router.

Table 1-1 Cisco MWR 1900 Power Supply Specifications

Specification	+27 VDC
Input voltage, DC power supply	+ 20 to 32 VDC
Maximum input current	2.2A
Wire gauge for DC-input power	18	AWG
connections2
Power Dissipation	44	W (typical)
Power Output	35	W (typical)

2Only solid copper conductors shall be used for the DC input power connection.

The Cisco MWR 1900 router uses a small, three-wire connector for the power supply. The connector on the Cisco MWR 1900 router is Phoenix Contact part number 1754452 and should mated with Phoenix Contact part number 1754465, which is attached to the power cable.

Table 1-2lists the pinout configuration for the connector for both power supplies.

Table 1-2 Power Supply Connectors Pinout

PIN

1

2

3

+27 VDC Power Supply

+27 VDC Ground

RTN

Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide

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