Cisco 2811 ROUTER 2FE 1NME 4HWIC 2PVDM 2AIM IP BASE WITH A/C POWER SUPPLY Техническое Руководство

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Cable Connection Procedures for Cisco 2800 Series Routers
OL-5787-02
  Power Connections
Figure 3
Wire Routing and Attachment for Cisco 2821 and Cisco 2851 Routers
Approved Scenarios and Scenarios Not Approved for Dual DC Power Supply Configuration in Cisco 
2800 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 be the same 
polarity (with respect to ground) and voltage (within 0.25 volts). Do not connect –DC grounded and +DC 
grounded dual sources to Cisco 2811, Cisco 2821, and Cisco 2851 routers.
Caution
Dual sources with opposite-polarity grounding damage equipment.
CONSOLE
AUX
 A
 B
 -
 +
 +
 -
 24-60V --- 12A
From DC
power 
source
Cable tie
0
1
111815
Plastic covers