HP A6604 Installation Manual page 17

CF LED
Do not remove the CF card when the CF LED is blinking. Otherwise, the file system on the CF
card will be damaged.
Components
An MPU is the control center of the device. It is responsible for:
Computing device routes and maintaining forwarding tables

Configuring and monitoring FIPs; updating and resetting FIPs or interface modules

Providing high-precision clock for the system and the real-time clock (RTC) function

Processor
RPE-X1s use the Power PC 1GHz processor as the routing processing engine.

RSE-X1s use the MIPS 1GHz processor as the routing processing engine.

BootWare Flash
The BootWare Flash size is 4 MB, of which 1 MB is used for storing the boot file—BootWare
and the remaining space for BootWare backup and important system parameters.
Memory module
The memory module is used for storing the data exchanged between the system and the CPU.
The default memory size of an RPE-X1 is one GB memory and the maximum memory size is
two GB. One RPE-X1 provides two memory slots in which you can insert two DDR2 SDRAMs of
different sizes.
The DDR2 SDRAMs for the RPE-X1 have two sizes:
DDR2 SDRAM-512MB

DDR2 SDRAM-1GB

The default memory size of an RSE-X1 is 2 GB (two 1 GB memory modules) and the maximum
memory size is 2 GB. An RSE-X1 provides two memory slots in which you can insert two DDR2
SDRAM-1GB modules.
NVRAM
The NVRAM is 128 KB in size and is used for storing exception information of the system during
operation.
CF card
1) Introduction
A compact flash (CF) card is used for storing logs, host files, and configuration files.
The device is equipped with a built-in 256 MB CF card, which is identified with cfa0. In addition,
the device provides an external CF card slot to expand the local storage space. A CF card
inserted into the external CF card slot is identified with cfb0.
The CF cards supported by the device are available in three sizes:
256 MB

512 MB

LED Status
On
Blinking
Off
On
CF (green)
Blinking
Meaning
A host is connected to the device-mode USB interface.
The USB cable can be unplugged in this state.
Data is being transmitted or received through the device-
mode USB interface. In this state, do not unplug the USB
cable.
No CF card is present or the CF card is not recognizable.
A CF card is in position and has passed the POST.
The system is accessing the CF card. In this state, do not
remove the CF card.