Cisco Systems Cisco 2800 Removable and Interchangeable Modules

5
Overview of Cisco 2800 Series Routers
OL-5783-01
Hardware Features
Removable and Interchangeable Modules
Table 2 summarizes the optional modules that can be installed in the router to provide specific
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 Cisco2811,
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.
Table2 Summary of Cisco 2800 Series Removable and Interchangeable Modules
Router Model
External Modules (In chassis slots) Internal Modules
Network Modules High-Speed WAN
Interface Cards (HWICs)
Extension Voice
Modules
(EVMs)
Advanced
Integration
Modules (AIMs)
Packet Voice
Data Modules
(PVDMs)1
1. Cisco 2800 series routers use PVDM II modules that are not compatible with Cisco 2600 series routers.
Cisco 2801 — 2 single-wide (HWIC) or
2 double-wide (HWIC-D)
1 WIC/VWIC/VIC slot
1 VWIC/VIC (voice-only)
—22
Cisco 2811 1 network module (NM) or
1 network module enhanced
(NME)
4 single-wide (HWIC) or
2 double-wide (HWIC-D)
—22
Cisco 2821 1 network module (NM) or
1 network module enhanced
(NME) or
1 network module enhanced
extended (NME-X)
4 single-wide (HWIC) or
2 double-wide (HWIC-D)
123
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)
4 single-wide (HWIC) or
2 double-wide (HWIC-D)
123