CFEB
The CFEB has the following major components:
•
Processing components:
•
266-MHz CPU and supporting circuitry
•
Integrated ASIC
•
33-MHz PCI bus
•
Storage components:
•
128-MB SDRAM for packet memory
•
128-MB SDRAM for the microkernel
•
8-MB SSRAM for route lookup
•
4-MB SSRAM for control memory
•
Services interfaces:
•
Built-in tunnel interface
•
Optional Adaptive Services Module
•
System interfaces:
•
100-Mbps link for internal interface to the Routing Engine
•
19.44-MHz reference clock—Generates clock signal for SONET/SDH PICs.
•
I2C controller to read the I2C/EEPROMs in the PICs and temperature sensors
•
I2C/EEPROM containing the serial number and revision level
•
Two 512-KB boot flash EPROMs (programmable on the board)
•
One PowerPC 8245 integrated processor
•
Three LEDs—A green LED labeled
OK
, a red LED labeled
FAIL
, and a blue LED labeled
MASTER
indicate CFEB status.
•
Online/Offline button—Prepares the CFEB for removal from the router when pressed.
•
Ejector levers—Control the locking system that secures the CFEB in the chassis.
9
Copyright © 2010, Juniper Networks, Inc.
Chapter 2: M7i Hardware Components
All manuals and user guides at all-guides.com
