1-18
Cisco 7206 Installation and Configuration Guide
OL-5102-02
Chapter 1 Product Overview
Field-Replaceable Units
Table 1-6 lists the I/O controller memory components.
LED Descriptions
Figure 1-12 shows the LEDs on the I/O controller with the Fast Ethernet port that is equipped with an
MII port and an RJ-45 port. Figure 1-13 shows the LEDs on the I/O controller without the Fast Ethernet
port. Figure 1-14 shows the LEDs on the I/O controller with the Fast Ethernet port that is equipped with
a single MII port.
Table 1-7 lists I/O controller LEDs and their functions. To use the LEDs for troubleshooting the I/O
controller, refer to Chapter 6, “Troubleshooting the Installation,” the “Troubleshooting the I/O
Controller” section on page 6-6.
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.
Caution To prevent system errors and problems, use the CPU reset button only at the direction of your service
representative.
Table 1-6 I/O Controller Memory Components
Memory Type Size Quantity Description Model Location
Boot ROM 256 KB 1 32-pin DIP-type C7200-I/O-FE-MII U20
32-pin DIP-type or
32-pin PLCC-type
C7200-I/O-FE,
C7200-I/O
U20 or U4
Flash memory 4 MB 1 Contains the default
boot helper image
C7200-I/O-FE-MII U99
C7200-I/O-FE,
C7200-I/O
U99 or
U10, U11,
U12, and U13
(soldered
1
)
1. Some I/O controllers have no Flash SIMM but use a permanently fixed 4-MB Flash chip instead. (See Figure 1-9.)
Flash memory
card
20 MB Up to 2 Contains the default
Cisco IOS image
All models PC Card slot
0 and slot 1
Flash Disk 48 to 128
MB
Up to 2
NVRAM
2
2. The NVRAM on some I/O controllers is replaced by a 32-pin nonsocketed SRAM component that is soldered onto the card.
The SRAM component is made to act like the NVRAM by the addition of some external components, one of which is a 1-inch
(2.54-cm) button-type lithium battery.
128 KB 1 Nonvolatile EPROM for
the system
configuration file
C7200-I/O-FE-MII U41
C7200-I/O-FE,
C7200-I/O
U41 or U14
(soldered)
2