System information

© 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID Kirkpatrick 092509
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Step 3: Make Electrical Connections ~
DC Power Systems
 External -48 VDC operating power for each DC-to-DC converter (mounted
in the chassis just behind the fan assembly) enters the chassis via a
dedicated DC power inlet mounted on the chassis back panel.
 The voltage input range for DC power systems is -40 VDC to -72 VDC.
 Use cable 4011730 for DC wiring. The #16 AWG wiring from the external -
48 VDC supply is attached to a 3-pin nylon connector which, in turn, plugs
into the DC power inlet.
 Order additional nylon plugs and connector pins from your preferred
supplier, as follows:
• Molex #03-12-1036 nylon 3-pin connector
• Molex #18-12-1222 crimp socket contact (3)
 Use a Molex Crimp Service Tool #63811-1000 or equivalent to crimp the
pins to the cable.