Cisco 3845 Hardware Guide - Page 54
Dual DC Power Supply Configuration in Cisco 3825 Routers,
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Power Connections Figure 14 DC Wire Routing and Attachment for Cisco 3825 Router 117120 COMPACT FLASH 1 0 SYS ACT SYS PWR RPS AUX PWR AIM0 AIM1 PVDM0 PVDM1 PVDM2 PVDM3 Plastic covers Cable tie Figure 15 DC Wire Routing and Attachment for Cisco 3845 Router SYS ACT SYS PWR1 AUX PWR1 SYS PWR2 AUX PWR2 117046 Plastic cover Cable tie Dual DC Power Supply Configuration in Cisco 3825 Routers You can connect a single DC power source to either the A input or the B input. If there are dual power sources, connect one source to the A input and one source to the B input. Both sources must have the same polarity (with respect to ground) and voltage (within 0.25 V). Do not connect -DC-grounded and +DC-grounded dual sources to a Cisco 3825 router. Connecting Cables to Cisco 3800 Series Routers 24 OL-5970-02
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