Specifications

Memory Replacement Instructions for the Network Processing Engine and Input/Output Controller 25
Powering Down the Router and Disconnecting Input Power
Step 3 Using a 3/16-inch flat-blade screwdriver, loosen the screw below the +48V lead
receptacle and pull the lead from the connector. (For Cisco 7200 series routers, see
Figure 15. For Cisco uBR7200 series routers, see Figure 16.)
For Cisco 7200 series routers, repeat this step for the –48V lead and the ground lead.
For Cisco uBR7200 series routers, repeat this step for the –48V lead only. Using an 8-mm
wrench or nut driver (or adjustable wrench), loosen and remove the two M5 nuts that
secure the two-hole grounding lug to the grounding receptacle, and pull the grounding lug
and lead from the receptacle.
Note The color coding of the DC-input power supply leads depends on the color coding
of the DC power source at your site. Typically, green or green/yellow is used for ground,
black is used for +48V (return), and red or white is used for –48V. Make certain the lead
color coding you choose for the DC-input power supply matches lead color coding used
at the DC power source.
Figure 15 Disconnecting Power from a Cisco 7200 Series DC-Input Power Supply
H8619
NETWORK PROCESSING ENGINE-150
Internal fans
DC-input
power supply
DC-input receptacle
Power switch