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Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide
OL-11496-01
Chapter 1 Cisco 12010, Cisco 12410, and Cisco 12810 Series Router Overview
Physical and Functional Description of Router
DC Power Supplies
A DC powered router consists of two (2400 W or 2800 W) DC PDUs and
DC PEMs. DC power to the router is provided from cables from a DC power
source that are connected to threaded DC-input terminal studs on the chassis rear
panel as shown in
.
Figure 1-5
DC Input Terminal Connections—2400 W
The terminal studs are labeled on the PDU and a clear plastic cover (not shown)
fits over the studs to protect the connections.
Each DC PEM operates from a nominal source DC voltage of –48 to –60 VDC
and requires a dedicated
60-amp service.
The status LEDs on a DC PEM provide information about the current operational
status of the power supply. For example, the LEDs on a 2400 W DC PEM provide
following information (
53367
Ground
-48/60V
(-)
-48/60V
RTN
(+)
Содержание 12010 series
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