1-7
Cisco 7201 Installation and Configuration Guide
OL-11364-04
Chapter 1 Overview
Cisco 7201 Hardware Overview
CompactFlash Disk Information
The Cisco 7201 router has one CompactFlash Disk slot that uses CompactFlash Disks. The device in this
slot is always addressed as disk0: when using Cisco IOS command-line interface (CLI) commands.
CompactFlash Disks are smaller in size than Type 2 Flash Disks but provide the same AT Attachment
(ATA) interface and equivalent functionality. This interface complies with the ANSI ATA Interface
Document X3T13.1153 D Rev. 9 specification. CompactFlash Disks provide from 256 MB of storage.
The CompactFlash Disk has controller circuitry that allows it to emulate a hard disk and automatically
maps out bad blocks and performs automatic block erasure. The CompactFlash Disk also provides the
capability to allocate noncontiguous sectors, which eliminates the need for the squeeze command (which
was required with older-style linear flash memory cards to recover the space used by deleted files).
The CompactFlash Disk also supports the Cisco IOS File System feature, which provides a single
interface to all of the router’s file systems, including the Flash Disks and flash memory, as well as
network file systems such as File Transfer Protocol (FTP) and Trivial FTP (TFTP) servers.
Table A-4 on page A-3
lists the CompactFlash Disk options. Also see
Appendix B, “Using the
CompactFlash Disk.”
Rear View
This section provides information about the power supplies and fans on the rear of the Cisco 7201 router.
Figure 1-4
Cisco 7201—Rear View
Four internal fans draw cooling air into the chassis and across internal components to maintain an
acceptable operating temperature. (See
Figure 1-4
.) The four fans are located at the rear of the chassis,
as is the chassis grounding connector that provides a chassis ground connection for ESD equipment or
a two-hole grounding lug. Two power supplies, either two AC power supplies or two DC power supplies,
are accessed from the rear of the router.
1
Fans
3
Power supply slot 1
2
Chassis ground connector
4
Power supply slot 2
158675
PWR
SLO
T 2
PWR
SLO
T 1
PWR
SLO
T
1 OK
THIS UNIT M
AY HAVE M
ORE THAN O
NE POWER S
UPPLY CON
NECTION. A
LL CONNEC
TIONS MUST
BE REMOVE
D TO DE-ENE
RGIZE THE U
NIT
PWR
SLO
T 2 OK
2
1
3
4
