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Cisco uBR10012 Universal Broadband Router Software Configuration Guide
OL-1520-08
Chapter1 Overview of CiscouBR10012 Universal Broadband Router Software CiscouBR10012 Universal Broadband Router Chassis Overview
Performance Routing Engine
(PRE1 or PRE2) One PRE1 or PRE2 module performs layer 2 and layer 3 packet
processing, as well as routing and system management functions.
Two PRE modules can be installed for redundancy.
Note The PRE1 module is functionally identical to the PRE
module except that it adds support for the Error Checking and
Correction (ECC) feature, which can automatically correct
single-bit memory errors.
Note The Cisco uBR10012 PRE1 module supports an Ethernet
port to a LAN for a 10BASE-T or 100BASE-T connection for
network management. The PRE1 module supports
connections of 800 Mbps in full duplex (each direction) per
half-slot.
AC-input Power Entry Module
(PEM) The Cisco uBR10012 router ships with two AC power entry modules
(AC PEMs) that provide a redundant power supply to the system.
One AC PEM can provide sufficient power for a fully configured
chassis, so that if one AC PEM fails, the other automatically begins
providing power for the entire router, without impacting system
operations.
The AC PEMs use standard 200–240 VAC (50/60 Hz) input power
obtained through power receptacles on the front panel of each PEM.
The two AC PEMs convert the AC power to provide filtered,
redundant, and load shared DC power to the Cisco uBR10012
chassis.
Caution The Cisco uBR10012 router does not support mixing AC
and DC PEMs. Both PEMs must be either AC PEMs or DC
PEMs.
DC-input Power Entry Module
(PEM) The Cisco uBR10012 router may ship with two DC PEMs to provide
power to the chassis. The use of two PEMs provide power balancing
and redundancy, as well as the ability to hot-swap a single power
supply when needed.
Caution The Cisco uBR10012 router does not support mixing AC
and DC PEMs. Both PEMs must be either AC PEMs or DC
PEMs.
Fan assembly module The fan assembly module contains four fans that are capable of
cooling the chassis even with the failure of a single fan. The fan
assembly is dual-speed, providing additional cooling when the
chassis temperature exceeds the nominal operating range.
Table4 CiscouBR10012 Universal Broadband Router Supported Hardware