Cisco CISCO2851 Overview - Page 5
Removable and Interchangeable Modules, External Modules In chassis slots - 2851 router specification
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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 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 High-Speed WAN Interface Cards (HWICs) Internal Modules Extension Voice Advanced Packet Voice Modules Integration Data Modules (EVMs) Modules (AIMs) (PVDMs)1 Cisco 2801 - 2 single-wide (HWIC) or - 2 2 2 double-wide (HWIC-D) 1 WIC/VWIC/VIC slot 1 VWIC/VIC (voice-only) Cisco 2811 1 network module (NM) or 4 single-wide (HWIC) or - 2 2 1 network module enhanced 2 double-wide (HWIC-D) (NME) Cisco 2821 1 network module (NM) or 4 single-wide (HWIC) or 1 2 3 1 network module enhanced 2 double-wide (HWIC-D) (NME) or 1 network module enhanced extended (NME-X) Cisco 2851 1 network module (NM) or 4 single-wide (HWIC) or 1 2 3 1 network module enhanced 2 double-wide (HWIC-D) (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 Overview of Cisco 2800 Series Routers 5