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Cisco 2821 - Integrated Services Router Unified Communications Bundle Обзор

Removable and Interchangeable Modules

Table 2
capabilities. The network modules, extension voice modules, and interface cards fit into slots, located
on the front of the chassis on the Cisco 2801 router, and on the rear of the chassis on the Cisco 2811,
Cisco 2821, and Cisco 2851 routers; they can be removed and installed without opening the chassis.
Advanced integration modules (AIMs), expansion DRAM memory modules (DIMMs), and packet voice
data modules (PVDMs) plug into connectors inside the chassis; they can be removed and installed only
by opening the chassis.
Table 2
Summary of Cisco 2800 Series Removable and Interchangeable Modules
External Modules (In chassis slots)
Router Model
Network Modules
Cisco 2801
—
Cisco 2811
1 network module (NM) or
1 network module enhanced
(NME)
Cisco 2821
1 network module (NM) or
1 network module enhanced
(NME) or
1 network module enhanced
extended (NME-X)
Cisco 2851
1 network module (NM) or
1 network module enhanced
(NME) or
1 network module enhanced
extended (NME-X) or
1 network module
double-wide (NMD) or
1 network module enhanced
extended double-wide
(NME-XD)
1. Cisco 2800 series routers use PVDM II modules that are not compatible with Cisco 2600 series routers.
OL-5783-01
summarizes the optional modules that can be installed in the router to provide specific
High-Speed WAN
Interface Cards (HWICs)
2 single-wide (HWIC) or
2 double-wide (HWIC-D)
1 WIC/VWIC/VIC slot
1 VWIC/VIC (voice-only)
4 single-wide (HWIC) or
2 double-wide (HWIC-D)
4 single-wide (HWIC) or
2 double-wide (HWIC-D)
4 single-wide (HWIC) or
2 double-wide (HWIC-D)
Internal Modules
Extension Voice
Advanced
Modules
Integration
(EVMs)
Modules (AIMs)
—
2
—
2
1
2
1
2
Overview of Cisco 2800 Series Routers
Hardware Features
Packet Voice
Data Modules
1
(PVDMs)
2
2
3
3
5