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Components
Chassis
• The Cisco 7200 Series VXR chassis also include a Multiservice Interchange (MIX), which supports switching of
DS0 time slots via MIX interconnects across the midplane to each port adapter slot.
• The midplane and the MIX also support distribution of clocking between channelized interfaces on the Cisco
7200 to support voice and other constant-bit-rate applications. The VXR midplane provides two full-duplex
8.192-Mbps TDM streams between each port adapter slot and the MIX, which is capable of switching DS0s on
all 12 8.192-Mbps streams. Each stream can support up to 128 DS0 channels.
• The MIX in the Cisco 7200VXR provides the ability to switch DS0 time slots between multichannel T1 and
E1 interfaces, much like TDM capabilities. This enables the Cisco 7200VXR to switch DS0 voice channels on a
T1/E1 interface on one port adapter to and from separate voice-processing port adapters. It also enables DS0s to
be switched through the Cisco 7200VXR without any processing, which is a requirement in certain voice
configurations.
Processors
• The Cisco 7200 Series sets new standards in meeting requirements for high-performance Layer 3 services at an
affordable price for both service providers and enterprises.
• The following processors are currently available for the Cisco 7200 Series:
– NPE-225
– NPE-400
– NSE-1
Table 3
Feature Cisco 7204VXR Cisco 7206VXR
Chassis/Rack 16 with side-to-side air flow
9 with RDS mounting system for front-to-back airflow
Same as Cisco 7204VXR
I/O Card slots 1 Same as Cisco 7204VXR
Port Adapter Slots 4 6
Midplane 2 independent 32-bit, 50-MHz PCI buses with an aggregate
bandwidth of 1.6 Gbps when used with NPE-400 or above
Same as Cisco 7204VXR
Online Insertion and
Removal (OIR)
Yes Same as Cisco 7204VXR
Field-Replaceable
Components
Processor, memory, power supply, I/O card, and port
adapters
Same as Cisco 7204VXR
Additional Standard
Components
AC power supply, AC power cord Same as Cisco 7204VXR
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