Dual Dc Power Supply Configuration In Cisco 3925 And Cisco 3925-Novpn Routers - Cisco WS-C2950-24 Installation Manual
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Connecting Power
Figure 3-29
Figure 3-30
Dual DC Power Supply Configuration in Cisco 3925 and Cisco 3925-NOVPN 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 Cisco 3925 and Cisco 3925-NOVPN routers.
Dual sources with opposite-polarity grounding damage equipment.
Caution
In
Figure
Cisco 2900 and 3900 Series Hardware Installation
3-28
DC Wire Routing andAttachment for Cisco 3925 and 3925-NOVPN Router
DC Wire Routing and Attachment for Cisco 3945 and 3945-NOVPN Router
3-31, either the positive source terminal or the negative source terminal is tied to ground.
Chapter 3
Installing and Connecting the Router
OL-18712-01
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