Physical and functional description of the router – Cisco XR 12404 User Manual
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Cisco XR 12404 Router Installation Guide
OL-13830-02
Chapter 1 Cisco XR 12404 Router Overview
Physical and Functional Description of the Router
Physical and Functional Description of the Router
The Cisco XR 12404 router supports up to 8 chassis in a one standard 7-foot
(2.15 meter) rack and has the following key features:
•
Route processor (PRP-2)—The primary route processor is installed in it’s
own dedicated slot. A redundant route processor can go in any line card slot.
See the
“Route Processor” section on page 1-4
•
Line cards—The card cage contains 4 hot-swappable card slots. The router
can accommodate up to three OC-192 line cards (or 2 line cards if redundant
route processors are installed). See the
“Supported Line Cards” section on
for information.
•
Consolidated switch fabric card (CSF)—Switch fabric, alarm, and clock
schedule functions are located on one board. The CSF card has a switching
capacity of 10 Gbps. See the
“Consolidated Switch Fabric Card” section on
for information.
•
AC power entry module (PEM)—A customized and hot-swappable one-piece
unit. See the
“Power Entry Modules” section on page 1-23
for information.
•
DC power entry module (PEM) and DC power distribution unit (PDU)—Two
pieces that can be removed as one unit or in separate pieces. See the
Entry Modules” section on page 1-23
for information.
Note
When operating the router, both power module bays must have DC PEMs
and DC PDUs installed to ensure EMI compliance.
•
Fan tray assembly—Supplies cooling air to the router. See the
Assembly” section on page 1-26
•
Cable management bracket used to neatly route line card cables. See the
“Cable Management System” section on page 1-28
for information.
•
Maintenance Bus—Controls all of the MBus modules in the system. See the
“Maintenance Bus” section on page 1-31
for information.
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