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Cisco Connected Grid Routers 2010 Hardware Installation Guide
OL-21559-01
Chapter 1 Overview of the Router
Hardware Features
Removable and Interchangeable Modules and Cards
GRWICs and power supply units (PSU) for the Cisco 2010 CGR fit into external slots and can be
removed or replaced without opening the chassis.
Note
See
Installing Cisco Interface Cards in Cisco Access Routers
document at:
for instructions that describe how to install GRWICs in the router.
Grid Router WAN Interface Cards
GRWICs are the latest generation of interface cards. GRWICs are installed in the GRWIC slot on the
router (see
You can install four single-wide GRWICs in the Cisco 2010 CGR router slots at any one time.
Memory
Cisco 2010 CGR routers contain the following types of memory:
•
DDR2—Stores the running configuration and routing tables, and is used for packet buffering by the
network interfaces. Cisco IOS software executes from DRAM memory. Supports 1-GB on board
DDR2.
•
Boot/NVRAM—Stores the bootstrap program (ROM monitor), the configuration register, and the
startup configuration.
•
Flash memory—External flash memory. Stores the operating system software image. Supports 2
external 4 GB I-temp compact flash memory cards.
Power Supplies
Cisco 2010 CGR supports two PSUs. Power supplies are field replaceable, externally accessible, and hot
swappable. The two power supply options are:
•
Low-voltage DC power supply
•
AC or high-voltage DC power supply
Note
Any combination of power supplies can be inserted into the chassis. Dual power supply configurations
are load sharing in redundancy mode. A single power supply is sufficient for supporting power needs to
the system.
Caution
Two types of power supplies are supported on the Cisco 2010 CGR: a low-voltage DC power supply and
a high-voltage DC/AC power supply. Take caution when selecting the correct input voltage for the power
supply installed or damage will result.
For this release, only the high-voltage AC power supply is available.
summarizes the power options.
