User guide
3-2
Cisco Media Gateway Manager 5.0 User Guide
OL-5461-02
Chapter 3 Planning the Network
What Network Elements Are Available to a Network Planner?
• 3.2.2 Cisco MGX 8850 Multiservice Switch
• 3.2.3 Cisco PXM-45 Processor Switch Module
• 3.2.4 Cisco Voice Switch Service Module
• 3.2.5 Cisco Voice Interworking Service Module
• 3.2.6 Cisco Route Processor Module
• 3.2.7 Cisco AXSM Broadband ATM Switch Module
• 3.2.8 Cisco MGX Service Resource Module
3.2.1 Cisco MGX 8880 Media Gateway
The Cisco MGX 8880 Media Gateway hardware has the same slot configuration as the Cisco MGX 8850
Multiservice Switch, but with a smaller chassis. The Cisco MGX 8880 fits in a 19-inch or a 23-inch rack.
It is optimized for voice applications, and supports two types of voice service modules; Cisco Voice
Switch Service Module (VXSM) and Cisco Voice Interworking Service Module (VISM). It also features
the following:
• The DC version of the Cisco MGX 8880, with its low profile cooling system, enables three gateways
to fit in a 7-foot rack.
• The MGX 8880 uses the PXM-45/C controller card only.
• The MGX 8880 uses an integrated redundancy connector (RCON).
3.2.2 Cisco MGX 8850 Multiservice Switch
The Cisco MGX 8850 Multiservice Switch is designed for service providers deploying narrowband
and/or broadband services. It can be voice enabled with VXSM and VISM modules. The Cisco MGX
8850 scales from DS0 to OC-48c/STM-16 and supports any combination of the following services:
• Frame Relay
• ATM
• Voice over ATM
• Voice over IP
• Circuit emulation
• IP
• Wireless aggregation
• DSL aggregation
• ATM service backbones
3.2.3 Cisco PXM-45 Processor Switch Module
The Cisco PXM-45 Processor Switch Module for the Cisco MGX 8880 and Cisco MGX 8850 IP + ATM
Multiservice Switch is a combination ATM switching fabric and processor card. The switching fabric
provides 45 Gbps of nonblocking switching capacity, while the processor provides the control plane that
delivers IP+ATM networking software, diagnostics, and performance monitoring.