Cisco 2821 - Integrated Services Router Unified Communications... Guía de instalación

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Overview of Cisco 2800 Series Routers

The Cisco 2800 series of integrated services routers offers secure, wire-speed delivery of concurrent

data, voice, and video services. The modular design of the Cisco 2800 series routers provides maximum

flexibility, allowing you to configure your router to meet evolving needs. The Cisco 2800 series routers

incorporate data, security, and voice services in a single system for fast, scalable delivery of crucial

business applications. The routers offer features such as hardware-based VPN encryption acceleration,

intrusion-protection and firewall functions, and optional integrated call processing and voice mail. The

routers offer a wide variety of network modules and interfaces, voice digital signal processor (DSP)

slots, high-density interfaces for a wide range of connectivity requirements, and sufficient performance

and slot density for future network expansion requirements and advanced applications.

The Cisco 2800 series consists of four versions. The Cisco 2801 routers and Cisco 2811 routers are one

rack unit in height and have two 10/100 LAN ports. The more powerful Cisco 2821 routers and

Cisco 2851 routers are two rack units in height and have two 10/100/1000 LAN ports. The higher-end

router platforms of the Cisco 2800 series offer increased performance, increased slot density including

network module slots ad extension voice module slots and increased inline power output.

Figure 1, Figure 2, and Figure 3 show front views of the Cisco 2800 series routers.

Figure 1 Front View of a Cisco 2801 Router

95817

Overview of Cisco 2800 Series Routers

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Hardware Features

Figure 2 Front View of a Cisco 2811 Router

Figure 3 Front View of a Cisco 2821 or Cisco 2851 Router

This chapter describes the features and specifications of the routers and includes the following sections:

•Hardware Features, page 2

•Chassis Views, page 11

•Interface Numbering, page 16

•Specifications, page 18

•Regulatory Compliance, page 25

Hardware Features

This section describes the basic features of Cisco 2800 series routers, including product identification,

built-in interfaces, modules, memory, LED indicators, chassis ventilation, and the internal clock.

Product Serial Number Location

The serial number label for Cisco 2801 routers is located on the rear of the chassis, along the bottom

edge near the lower left corner. (See Figure 4.)

95902

Do Not Remove During Network Operation

COMPACT FLASH

CONSOLE OPTIONAL RPS INPUT

12V 11A

AUX

SYS

PWR

AUX/

PWR

SYS

ACT CF

-48V 4A

100-240 V~ 4A

50/60 Hz

95903

Do Not Remove During Network Operation

COMPACT FLASH

CONSOLE

AUX

SYS

PWR

AUX/

PWR

SYS

ACT CF

OPTIONALRPSINPUT

12V11A

-48V4A

100-240 V~ 4A

50/60 Hz

Overview of Cisco 2800 Series Routers

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Hardware Features

Figure 4 Serial Number Location on the Cisco 2801 Router

Note The serial number for Cisco 2801 routers is 11 characters long.

The serial number label for Cisco 2811 routers is located on the rear of the chassis, near the top right

corner, to the left of the CLEI label. (See Figure 5.)

Figure 5 Serial Number Location on the Cisco 2811 Router

Note The serial number for Cisco 2811 routers is 11 characters long.

117342 781-00286-01

SN: AAANNNNXXXX

103962 781-00287-01

A=ACT

FE0/1

PVDM1PVDM0AIM1AIM0

FE0/0

S=SPEED

A=FDX

A=LINK

ENM0

SN: AAANNNNXXXX

Overview of Cisco 2800 Series Routers

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Hardware Features

The serial number label for Cisco 2821 and Cisco 2851 routers is located on the rear of the chassis, near

the top right corner, below the CLEI label. (See Figure 6.)

Figure 6 Serial Number Location on the Cisco 2821 and Cisco 2851 Routers

Note The serial number for Cisco 2821 and Cisco 2851 routers is 11 characters long.

Cisco Product Identification Tool

The Cisco Product Identification (CPI) tool provides detailed illustrations and descriptions showing

where to locate serial number labels on Cisco products. It includes the following features:

•A search option that allows browsing for models using a tree-structured product hierarchy

•A search field on the final results page making it easier to look up multiple products

•End-of-sale products are clearly identified in results lists

The tool streamlines the process of locating serial number labels and identifying products. Serial number

information expedites the entitlement process and is important for access to support services.

The Cisco Product Identification tool can be accessed at the following URL:

http://tools.cisco.com/Support/CPI/index.do

Built-in Interfaces

Table 1 summarizes the interface ports built into the chassis.

103963 781-00288-01

A= ACT

FE 0/1

PVDM2 PVDM1 PVDM0 AIM1 AIM0

FE 0/0

S= SPEED

A= FDX

A= LINK

SN: AAANNNNXXXX

Table 1 Summary of Cisco 2800 Series Built-In Interfaces

Model

100BASE-T Fast Ethernet (FE)

Ports (RJ-45)

1000BASE-T Gigabit

Ethernet (GE) Ports (RJ-45)

Universal Serial

Bus (USB) Ports

Console Port

(RJ-45)

Auxiliary Port

(RJ-45)

Cisco 2801 2 — 1 1 1

Cisco 2811 2 — 2 1 1

Cisco 2821 — 2 2 1 1

Cisco 2851 — 2 2 1 1

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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

Router Model

External Modules (In chassis slots) Internal Modules

Network Modules High-Speed WAN

Interface Cards (HWICs)

ExtensionVoice

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

Overview of Cisco 2800 Series Routers

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Hardware Features

Memory

Cisco 2800 series routers contain the following types of memory:

•DRAM—Stores the running configuration and routing tables and is used for packet buffering by the

network interfaces. Cisco IOS software executes from DRAM memory.

•Boot/NVRAM—Internal flash memory. Stores the bootstrap program (ROM monitor), the

configuration register, and the startup configuration.

•Flash memory—External flash memory. Stores the operating system software image.

Table 3 summarizes the memory options for Cisco 2800 series routers. The default memory numbers for

RAM represent the minimum usable memory. You can install additional RAM in multiples of the default

amount, up to the maximum amount.

Table 3 Router Memory Specifications

Router

Platform DRAM Boot/NVRAM Flash Memory

Cisco 2801 Type—SDRAM DIMM

DIMM sizes—64 MB, 128 MB, 256 MB

DIMM expansion slots—11

Default onboard memory—128 MB

Maximum memory—384 MB

1. Cisco 2801 routers have 128 MB of SDRAM soldered onto the system board. You can install a DIMM into the expansion slot

to increase memory to the maximum of 384 MB.

Internal 4-MB

flash memory

External CompactFlash

memory cards of the

following optional

sizes:

•64 MB (default)

•128 MB

Cisco 2811 Type—ECC DDR (error-correcting code,

double data rate) SDRAM DIMM

DIMM sizes—256 MB, 512 MB

DIMM slots—2

Default onboard memory— none

Default memory—256 MB

Maximum memory—768 MB2

2. Cisco 2811 routers can accept one 256 MB and one 512 MB DIMM to provide 768 MB of usable memory.

Internal 2-MB

flash memory

External CompactFlash

memory cards of the

following optional

sizes:

•64 MB (default)

•128 MB

•256 MB

Cisco 2821 Type—ECC DDR (error-correcting code,

double data rate) DRAM DIMM

DIMM sizes—256 MB, 512 MB

DIMM slots—2

Default onboard memory— none

Default memory—256 MB

Maximum memory—1024 MB3

3. Cisco 2851 routers can accept two 512 MB DIMMs to provide 1024 MB of usable memory.

Cisco 2851

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Hardware Features

Power

Table 4 summarizes the power options for Cisco 2800 series routers. Cisco 2801 routers are equipped

for operation using AC power only. Cisco 2811, Cisco 2821, and Cisco 2851 routers can be equipped for

operation using either AC or DC input power by installation of the appropriate chassis power supply. IP

phone power is supported if the appropriate AC-input chassis power supply is installed.

LED Indicators

Table 5 and Table 6 summarize the LED indicators that are located in the router bezel or chassis, but not

in removable modules or interface cards.

Table 4 Summary of Cisco 2800 Series Power Options

Router Model Power Option Input IP Phone Power Output

Cisco 2801 AC input without IP phone power

output

100 - 240 VAC, 2 A None

AC input with IP phone power

output

100 - 240 VAC, 5 A –48 VDC, 120 W

Cisco 2811 AC input without IP phone power

output

100 - 240 VAC, 2 A None

AC input with IP phone power

output

100 - 240 VAC, 4 A –48 VDC, 160 W

DC input without IP phone power

output

24 - 60 VDC, 8 A None

Cisco 2821 AC input without IP phone power

output

100 - 240 VAC, 3 A None

AC input with IP phone power

output

100 - 240 VAC, 8 A –48 VDC, 240 W

DC input without IP phone power

output

24 - 60 VDC, 12 A None

Cisco 2851 AC input without IP phone power

output

100 - 240 VAC, 3 A None

AC input with IP phone power

output

100 - 240 VAC, 8 A –48 VDC, 360 W

DC input without IP phone power

output

24 - 60 VDC, 12 A None

Cisco 2811,

Cisco 2821, and

Cisco 2851

Backup power for AC- or

DC-powered routers:

Cisco Redundant Power System

(RPS-675)

100 VAC, 10 A,

or 240 VAC, 6 A

The Cisco RPS provides IP phone power

only if the chassis power supply supports

IP phone power.

With Cisco 2811: –48 VDC, 160 W

With Cisco 2821: –48 VDC, 240 W

With Cisco 2851: –48 VDC, 360 W

Overview of Cisco 2800 Series Routers

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Hardware Features

To see descriptions of LEDs in removable modules and interface cards, refer to the applicable

documentation for those products: the Cisco Network Modules Hardware Installation Guide or the Cisco

Interface Cards Installation Guide.

For LED troubleshooting information, including possible trouble causes and corrective actions, see

Table 1 in the “Troubleshooting Cisco 2800 Series Routers” document.

Table 5 Summary of Cisco 2801 Series LED Indicators

LED Color Description Location

SYS PWR Green Router has successfully booted up and the

software is functional. This LED blinks while

booting or in the ROM monitor.

Front

SYS ACT Green Blinking when any packets are transmitted or received

on any WAN or LAN or system is monitoring internal

activities.

Front

CF Green On when flash memory is busy. Do not

remove the CompactFlash memory card when this

light is on.

Front

AUX/PWR Green/

Amber

Indicates that the inline power supply is present

(LED is on). When the inline power supply is not

installed, the LED is off. If the power supply is

working properly, the LED is green. If the

power supply is not working properly, the LED

is amber, indicating an inline power failure.

Front

FE 0 Link Green On when the router is correctly connected to a

local Ethernet LAN through Ethernet port 0.

Front

FE 0 100 Green On indicates a 100-Mbps link.

Off indicates a 10-Mbps link.

Front

FE 0 FDX Green On indicates full-duplex operation.

Off indicates half-duplex operation.

Front

FE 1 Link Green On when the router is correctly connected to a

local Ethernet LAN through Ethernet port 1.

Front

FE 1 100 Green On indicates a 100-Mbps link.

Off indicates a 10-Mbps link.

Front

FE 1 FDX Green On indicates full-duplex operation.

Off indicates half-duplex operation.

Front

AIM 0 Green On indicates presence of an advanced integration

module (AIM) in AIM slot 0.

Front

AIM 1 Green On indicates presence of an AIM in AIM slot 1. Front

PVDM 0 Green On indicates presence of a packet voice data

module (PVDM) in PVDM slot 0.

Front

PVDM 1 Green On indicates presence of a PVDM in PVDM slot 1. Front

Overview of Cisco 2800 Series Routers

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Hardware Features

Table 6 Summary of Cisco 2811, Cisco 2821, and Cisco 2851 Series LED Indicators

LED Location LED Label

LED Color or

State Meaning

Front of chassis SYS

PWR

Solid green System is operating normally

Blinking green System is booting or is in ROM monitor mode

Amber System error

Off Power is off or system board is faulty

AUX/

PWR

Green IP phone power operating normally (if installed), or

Cisco Redundant Power System (RPS) operating normally (if

installed)

Amber IP phone power fault (if installed), or

Cisco Redundant Power System (RPS) fault (if installed)

Off IP phone power and Cisco RPS are not installed

SYS

ACT

Blinking green

or solid green

Packet transfers are occurring

Off No packet transfers are occurring

CF Green Flash memory is being accessed; do not eject the CompactFlash

memory card

Off Flash memory is not being accessed; okay to eject the CompactFlash

memory card

Rear of chassis A (=ACT) Blinking green

or solid green

Packet activity in FE or GE port

Off No packet activity in FE or GE port

F (=FDX) Green FE or GE port is operating in full-duplex mode

Off FE or GE port is operating in half-duplex mode

S (= Speed)1

1. The Ethernet S (Speed) LED blinks only when the L (Link) LED is on.

1 blink + pause FE or GE port operating at 10 Mbps

2 blinks + pause FE or GE port operating at 100 Mbps

3 blinks + pause GE port operating at 1000 Mbps (Cisco 2821 and Cisco 2851 only)

L (= Link) Green FE or GE link is established

Off No FE or GE link is established

PVDM0

PVDM1

PVDM22

2. The PVDM2 LED is applicable only to the Cisco 2821 and Cisco 2851 routers.

Green PVDM in slot (0, 1, or 2) is initialized

Amber PVDM in slot (0, 1, or 2) is detected but not initialized

Off No PVDM installed in slot (0, 1, or 2)

AIM0

AIM1

Green AIM in slot (0 or 1) is initialized

Amber AIM in slot (0 or 1) has initialization error

Off No AIM installed in slot (0 or 1)

Overview of Cisco 2800 Series Routers

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Hardware Features

Chassis Ventilation

Internal multispeed fans provide chassis cooling, controlled by an onboard temperature sensor.

The Cisco 2801 router has two fans. The Cisco 2801 router with inline power includes two additional

fans integrated with the inline power supply, for a total of four fans. The Cisco 2801 internal fans operate

at three different speeds, running at the slower speeds to conserve power and reduce fan noise at ambient

temperatures below 40oC. They operate at the highest speed in ambient temperatures above 40oC.

The Cisco 2811 router has three fans that operate at a slower speed to conserve power and reduce fan

noise at ambient temperatures below 32oC. They operate at high speed in ambient temperatures above

32oC.

The Cisco 2821 and Cisco 2851 routers have three fans that operate at a slower speed to conserve power

and reduce fan noise at ambient temperatures below 40oC. They operate at high speed in ambient

temperatures above 40oC.

Caution Ensure the device is not installed in close proximity to other devices which could lead to excessive

pre-heating of air at the air intake of the router.

Caution Your chassis installation must allow unrestricted airflow for chassis cooling.

Cisco 2800 Series Router Installation and Preventive Maintenance

Periodic inspection and cleaning of the external surface of the router is recommended to minimize the

negative impact of environmental dust or debris on the router performance. The frequency of inspection

and cleaning is dependent upon the severity of the environmental conditions. Cleaning involves

vacuuming of router air intake and exhaust vents.

Caution Fans are dynamic Electro-Mechanical devices. As such, fans can fail for various electronic reasons, and

will eventually fail due to mechanical wear-out. Sites with ambient temperatures consistently above 25

degree C and with potentially high levels of dust or debris may require fan servicing.

Real-Time Clock

An internal real-time clock with battery backup provides the system software with time of day on system

power up. This allows the system to verify the validity of the certification authority (CA) certificate. In

the Cisco 2811, Cisco 2821, and Cisco 2851 routers, the clock and battery are permanently installed; the

battery lasts the life of the router under the operating environmental conditions specified for the router.

The Cisco 2801 router has a socketed lithium battery. This battery lasts the life of the router under the

operating environmental conditions specified for the router, and is not field-replaceable.

Note If the lithium battery in a Cisco 2801 router should fail, the router must be returned to Cisco for repair.

Although the battery is not intended to be field-replaceable, the following warning must be heeded:

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