Cisco 2821 Series User Manual

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Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers
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Safety Warnings and Guidelines
Safety Warnings and Guidelines
This section provides the safety warnings and guidelines for working with the Cisco 2821 and Cisco
2851 series routers. It contains the following sections:
• Safety Warnings, page 2
• Safety Guidelines, page 9
• Safety with Electricity, page 9
• Preventing Electrostatic Discharge Damage, page 10
Safety Warnings
Note Use this section in conjunction with the Cisco 2800 Series and Cisco 3800 Series Integrated Services
Routers Regulatory Compliance and Safety Information document:
http://www.cisco.com/en/US/docs/routers/access/2800/hardware/rcsi/2838rcsi.html

Cisco 2821 Series Specifications

General

Form Factor	Rack-mountable
Power Supply	AC 120/230 V (50/60 Hz)
Product Type	Router
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Operating System	Cisco IOS
Expansion Slots	4 x HWIC
Memory	256 MB (max 1 GB)
Network/Transport Protocol	L2TP, IPSec, PPPoE
Remote Management Protocol	SNMP, Telnet, HTTP, SSH
Encryption Algorithm	DES, 3DES, AES
Features	VPN support, Firewall protection, VLAN support, QoS
Flash Memory	64 MB (installed) / 128 MB (max)