Cisco Router 7204 Installation And Configuration Manual page 29

Chapter 1 Product Overview
Figure 1-9
Captive
installation
screw
Table 1-3
Table 1-4
Memory Type
Boot ROM
Flash SIMM
Flash memory
card
NVRAM
Depending on whether the Fast Ethernet port is present, up to five LEDs on the I/O controller faceplate
indicate system status; two additional LEDs indicate the status of the Flash memory cards installed in
either PCMCIA slot.
Figure 1-10
single MII port.
equipped with an MII port and an RJ-45 port.
the Fast Ethernet port.
troubleshooting the I/O controller, refer to the
"Chapter 5, "Troubleshooting the
A CPU reset button is located next to the IO power OK LED or the auxiliary port on the I/O controller
faceplate. The CPU reset button resets the entire system.
To prevent system errors and problems, use the CPU reset button only at the direction of your service
Caution
representative.
OL-5101-02
I/O Controller—without Fast Ethernet Port
Temperature
sensor
Boot ROM [U20]
LED and
CPU reset
PC Card slots
lists the I/O controller memory components.
I/O Controller Memory Components
Size Quantity
256 KB 1
4 MB 1
8 to 20 MB Up to 2
128 KB 1
shows the LEDs on the I/O controller with the Fast Ethernet port that is equipped with a
Figure 1-11 shows the LEDs on the I/O controller with the Fast Ethernet port that is
Table 1-5 lists I/O controller LEDs and their functions. To use the LEDs for
Console
Auxiliary port
port
button
Description
DIP-type integrated circuit for the ROM
monitor program
Contains the default boot helper image
Contains the default Cisco IOS image
Nonvolatile EPROM for the system
configuration file
Figure 1-12 shows the LEDs on the I/O controller without
"Identifying Startup Problems" section on page 5-3
Installation."."
Cisco 7204 Installation and Configuration Guide
Physical Description
Midplane
connectors
Flash SIMM [U99]
NVRAM [U41]
Temperature
sensor
Location
U20
U99
PCMCIA
slot 0 and
slot 1
U41
in
1-13