Cisco 2811 ROUTER 2FE 1NME 4HWIC 2PVDM 2AIM IP BASE WITH A/C POWER SUPPLY Техническое Руководство

 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 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.

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) 

—

2

2

Cisco 2811

1 network module (NM) or

1 network module enhanced 
(NME)

4 single-wide (HWIC) or 

2 double-wide (HWIC-D) 

—

2

2

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)

1

2

3

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)

1

2

3