The Cisco 2800 Series routers are four platforms, the 2801, 2811, 2821 and 2851. The ordering table has most platforms in three forms: plain AC power, AC power with power over Ethernet distribution (the -AC-IP suffix), and DC power (the -DC suffix). The 2821 follows the pattern with CISCO2821, CISCO2821-AC-IP and CISCO2821-DC. The 2801 has no DC form, and CISCO2801 and CISCO2801-AC-IP are its two entries. All of them are orderable with Cisco IOS IP Base.
Ethernet differs by platform. The 2801 and 2811 have two 10/100 ports, and the 2821 and 2851 have two 10/100/1000 ports. Flash is 64 MB on all four, and DRAM starts at 128 MB on the 2801 and 256 MB on the other three. Network modules are for the 2811, 2821 and 2851 only: the 2811 has an NME slot, the 2821 an NME-X slot and the 2851 an NME-XD slot. The 2801 takes no network modules.
Voice hardware separates the top two models. The 2821 and 2851 each add an EVM slot and have three PVDM slots, where the 2801 and 2811 have two. The EVM slot takes Cisco’s high-density analog and digital extension module for voice and fax, up to 24 sessions in total, without using the network module slot. Every model has two AIM slots and as many as two USB ports.
More than 90 modules are shared with the Cisco 1700, 1800, 2600, 3700 and 3800 routers. Four HWIC slots sit in the 2811, 2821 and 2851, and those slots also hold WICs, VICs and VWICs, with room for two double-wide HWIC-D cards. On the 2811, 2821 and 2851 an external connector allows a redundant power supply, and the DC option is not available on the 2801.
IP Voice software is sold as S28NIPV for the 2811, 2821 and 2851 and as S28IPV for the 2801. Single-model detail is on the Cisco 2811 page, and the base router has its own listing as CISCO2811. More routers sit in the Cisco router category, while networking leads to the other Cisco families.
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Cisco 2800 Series Routers parts we supply
Routers (12) (11)
- CISCO2801: 2801, AC power, 2FE, 4 interface card slots, 2 PVDM slots, 2 AIMs, IP Base
- CISCO2801-AC-IP: 2801 with AC power and PoE distribution, 2FE, 4 interface card slots, 2 PVDM slots, 2 AIMs, IP Base
- CISCO2811: 2811, AC power, 2FE, 1 NME, 4 HWICs, 2 PVDM slots, 2 AIMs, IP Base
- CISCO2811-AC-IP: 2811 with AC power and PoE distribution, 2FE, 1 NME, 4 HWICs, 2 PVDM slots, 2 AIMs, IP Base
- CISCO2811-DC: 2811 with DC power, 2FE, 1 NME, 4 HWICs, 2 PVDM slots, 2 AIMs, IP Base
- CISCO2821: 2821, AC power, 2GE, 1 NME-X, 1 EVM, 4 HWICs, 3 PVDM slots, 2 AIMs, IP Base
- CISCO2821-AC-IP: 2821 with AC power and PoE distribution, 2GE, 1 NME-X, 1 EVM, 4 HWICs, 3 PVDM slots, 2 AIMs, IP Base
- CISCO2821-DC: 2821 with DC power, 2GE, 1 NME-X, 1 EVM, 4 HWICs, 3 PVDM slots, 2 AIMs, IP Base
- CISCO2851: 2851, AC power, 2GE, 1 NME-XD, 1 EVM, 4 HWICs, 3 PVDM slots, 2 AIMs, IP Base
- CISCO2851-AC-IP: 2851 with AC power and PoE distribution, 2GE, 1 NME-XD, 1 EVM, 4 HWICs, 3 PVDM slots, 2 AIMs, IP Base
- CISCO2851-DC: 2851 with DC power, 2GE, 1 NME-XD, 1 EVM, 4 HWICs, 3 PVDM slots, 2 AIMs, IP Base
IOS feature sets (4)
- S28IPV: Cisco 2800 IP Voice, for the 2801
- S28NIPV: Cisco 2800 IP Voice, for the 2811, 2821 and 2851
- S28NIPB: Cisco 2800 IP Base, for the 2811, 2821 and 2851
- S28IPB: Cisco 2800 IP Base, for the 2801