Alcatel-Lucent 7450 ESS-1, Руководство по установке

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Chassis Features
Page 14 7450 ESS-1
Chassis Features
The 7450 ESS-1 features integral SF/CPM, IOM, power supply module, and fans. These
components are factory installed and are not field replaceable.
Mounting brackets for the 7450 ESS-1 chassis are installed to front-mount the unit in a standard
19-inch wide rack. Adhesive-backed rubber footpads are included in the accessory kit to install
the stackable ESS-1 switch on a flat surface. Refer to
Table 2 and Table 3 for feature descriptions.
SF/CPM
The integrated SF/CPM controls the routing and switching functions for the entire 7450 ESS-1
system. The switch fabric (SF) portion of the SF/CPM receives and directs traffic to the
appropriate destinations according to the routing information. The SF/CPM connects directly to
the backplane.
The front panel can accommodate up to 3 compact flash memory cards that can be used to copy
and store system boot, software images, and configuration files and logs.
IOM
The integrated 20 Gigabit IOM supports a wide variety of interfaces, including Ethernet, SONET/
SDH (channelized and concatenated) and ATM. Each I/O module is a baseboard that can carry up
to two hot-swappable MDAs.
MDAs
Alcatel’s Ethernet MDAs for the Ethernet Service Switch (ESS) family provide the critical high-
speed interfaces. An MDA is a plug-in module allowing selection among fiber-optic, twisted pair,
and coaxial cable. A maximum of 2 MDAs can be attached to each IOM. MDAs are field
replaceable by qualified personnel.