Cisco 2821 - Integrated Services Router Unified Communications Bundle, CISCO2851, 2800 Series Overview

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Overview of Cisco 2800 Series Routers

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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

Corporate Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

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Hardware Features

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-4 8

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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.)

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Figure 4 Serial Number Location on the Cisco 2801 Router

117342 781-00286-01

SN: AAANNNNXXXX

SN: A

AANNNNXXXX

103962 781-00287-01

F E

S L O T 2

S L O T 0

S L O T 3

S L O T 1

SN: AAANNNNXXXX

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

Hardware Features

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

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Overview of Cisco 2800 Series Routers

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Hardware Features

103963 781-00288-01

A= ACT

FE 0/1

PVDM2

PVDM1

PVDM0

AIM1

AIM0

F E 0/0

S= SPEED

A = FDX

A= LIN

SN: AAANNNNXXXX

SN: A

AANNNNXXXX

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

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

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.

Table 1 Summary of Cisco 2800 Series Built-In Interfaces

100BASE-T Fast Ethernet (FE)

Model

Ports (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

1000BASE-T Gigabit Ethernet (GE) Ports (RJ-45)

Universal Serial Bus (USB) Ports

Console Port (RJ-45)

Auxiliary Port (RJ-45)

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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) Internal Modules

Router Model

Network Modules

High-Speed WAN Interface Cards (HWICs)

Cisco 2801 — 2 single-wide (HWIC) or

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

Extension Voice Modules (EVMs)

—22

Advanced Integration Modules (AIMs)

Hardware Features

Packet Voice Data Modules (PVDMs)

1 network module enhanced

2 double-wide (HWIC-D)

(NME)

Cisco 2821 1 network module (NM) or

1 network module enhanced

4 single-wide (HWIC) or

2 double-wide (HWIC-D)

123

(NME) or

1 network module enhanced extended (NME-X)

Cisco 2851 1 network module (NM) or

1 network module enhanced

4 single-wide (HWIC) or

2 double-wide (HWIC-D)

123

(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.

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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—1

Default onboard memory—128 MB

Maximum memory—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 MB

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

Cisco 2851

DIMM sizes—256 MB, 512 MB

DIMM slots—2

Default onboard memory— none

Default memory—256 MB

Maximum memory—1024 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.

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

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

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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.

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

AC input with IP phone power output

Cisco 2811 AC input without IP phone power

output

AC input with IP phone power output

DC input without IP phone power output

Cisco 2821 AC input without IP phone power

output

AC input with IP phone power output

DC input without IP phone power output

Cisco 2851 AC input without IP phone power

output

AC input with IP phone power output

DC input without IP phone power output

Cisco 2811, Cisco 2821, and Cisco 2851

Backup power for AC- or DC-powered routers:

Cisco Redundant Power System (RPS-675)

100 - 240 VAC, 2 A None

100 - 240 VAC, 5 A –48 VDC, 120 W

100 - 240 VAC, 2 A None

100 - 240 VAC, 4 A –48 VDC, 160 W

24 - 60 VDC, 8 A None

100 - 240 VAC, 3 A None

100 - 240 VAC, 8 A –48 VDC, 240 W

24 - 60 VDC, 12 A None

100 - 240 VAC, 3 A None

100 - 240 VAC, 8 A –48 VDC, 360 W

24 - 60 VDC, 12 A None

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

LED Indicators

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

in removable modules or interface cards.

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With Cisco 2821: –48 VDC, 240 W

With Cisco 2851: –48 VDC, 360 W

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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

Front software is functional. This LED blinks while booting or in the ROM monitor.

SYS ACT Green Blinking when any packets are transmitted or received

Front on any WAN or LAN or system is monitoring internal activities.

CF Green On when flash memory is busy. Do not

Front remove the CompactFlash memory card when this light is on.

AUX/PWR Green/

Amber

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

Front

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.

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

Front local Ethernet LAN through Ethernet port 0.

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

Front Off indicates a 10-Mbps link.

FE 0 FDX Green On indicates full-duplex operation.

Front Off indicates half-duplex operation.

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

Front local Ethernet LAN through Ethernet port 1.

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

Front Off indicates a 10-Mbps link.

FE 1 FDX Green On indicates full-duplex operation.

Front Off indicates half-duplex operation.

AIM 0 Green On indicates presence of an advanced integration

Front module (AIM) in AIM slot 0.

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

Front module (PVDM) in PVDM slot 0.

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

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

LED Color or

LED Location LED Label

Front of chassis SYS

PWR

State Meaning

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

Packet activity in FE or GE port

or solid green

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 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

PVDM2

AIM0

AIM1

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)

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)

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

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

Hardware Features

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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 40

The Cisco 2811 router has three fans that operate at a slower speed to conserve power and reduce fan noise at ambient temperatures below 32

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 40 temperatures above 40

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.

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

C. They operate at high speed in ambient temperatures above

C. They operate at high speed in ambient

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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Chassis Views

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1234

7 9 11 12 13 14 14

8 10

Warning

There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

Chassis Views

This section contains views of the front and rear panels of the Cisco 2800 series routers, showing locations of the power and signal interfaces, module slots, status indicators, and chassis identification labels.

Cisco 2801 Chassis

Figure 7 shows the front panel of a Cisco 2801 router. Figure 8 shows the back panel.

Figure 7 Front Panel of the Cisco 2801 Router

Statement 1015

1 Slot 0 (VIC or VWIC, for voice only) 8 Auxiliary Power (AUX/PWR) LED

2 Slot 1 (WIC, VIC, VWIC, or HWIC) 9 Universal serial bus (USB) port

3 Slot 2 (WIC, VIC, or VWIC) 10 AIM/PVDM LEDs

4 Slot 3 (WIC, VIC, VWIC, or HWIC) 11 Auxiliary port

5 Console port 12 Compact flash (CF) LED

6 Fast Ethernet ports and LEDs 13 External CompactFlash memory card slot

7 System LEDs 14 Removable center card guides to allow

Double-wide HWICs can go into slots 0 and 1, and into slots 2 and 3.

Note Slot 0 does not support PRI on T1/E1 VWICs, only channel-associated signaling (CAS) digital voice.

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double-wide HWIC-D installation

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Chassis Views

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SYS ACT CF

100-240 V~ 2A

50/60 Hz

124567 3

95550

CONSOLE

OPTIONAL RPS INPUT

12V 11A

AUX

SYS PWR

AUX/ PWR

SYS ACT CF

-48V 4A

124567 3

100-240V~ 8A

50/60 Hz

Do Not Remove During Network Operation

COMPACT FLASH

Figure 8 Back Panel of the Cisco 2801 Router

1 Input power connector 3 Chassis ground connection

2 On/Off switch

Cisco 2811 Chassis

Figure 9, Figure 10, and Figure 11 show the front panel of a Cisco 2811 router. Figure 12 shows the rear

panel of a Cisco 2811 router.

Figure 9 Front Panel of Cisco 2811 Router with AC Input Power and Without IP Phone Power Output

1 Input power connection 5 Universal serial bus (USB) ports

2 On/Off switch 6 External CompactFlash memory card slot

3 Cisco redundant power supply connector (covered if not used) 7 LED indicators

4 Console and auxiliary ports

Figure 10 Front Panel of Cisco 2811 Router with AC Input Power and with IP Phone Power Output

1 Input power connection 5 Universal serial bus (USB) ports

2 On/Off switch 6 External CompactFlash memory card slot

3 Cisco redundant power supply connector (covered if not used) 7 LED indicators

4 Console and auxiliary ports

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Figure 11 Front Panel of Cisco 2811 Router with DC Input Power

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12V 11A

AUX

SYS PWR

AUX/ PWR

SYS ACT CF

4567 3

24-60 V 8A

A= ACT

FE 0/1

PVDM1 PVDM0 AIM1 AIM0

FE 0/0

S= SPEED

A= FDX A= LINK

H W I C 2

H W I C 0

H W

I C 3

H W

I C 1

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1 Input power connection 5 Universal serial bus (USB) ports

2 On/Stand-by switch

6 External CompactFlash memory card slot

3 Cisco redundant power supply connector (covered if not used) 7 LED indicators

4 Console and auxiliary ports

1. This switch does not turn off the power supply completely, but rather puts it in stand-by mode.

Figure 12 Rear Panel of Cisco 2811 Router

Chassis Views

1 Screw holes for ground lug 5 High-speed WAN interface card slot 1

2 Fast Ethernet port 0/0 6 High-speed WAN interface card slot 2

3 Fast Ethernet port 0/1 7 High-speed WAN interface card slot 3

4 High-speed WAN interface card slot 0 8 Network module enhanced (NME) slot

1. The network module slot is compatible with Cisco network modules of type NM (network module) and NME (network module enhanced).

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Chassis Views

Do Not Remove During Network Operation

COMPACT FLASH

OPTIONAL RPS INPUT

SYS PWR

AUX/ PWR

SYS ACT CF

12V 18A

100-240 V~ 3A

50/60 Hz

1457 6 3

CONSOLE

AUX

Do Not Remove During Network Operation

COMPACT FLASH

OPTIONAL RPS INPUT

SYS PWR

AUX/ PWR

SYS ACT CF

12V 18A

-48V 8A

1457 6 3

CONSOLE

AUX

100-240V~ 8A

50/60 Hz

Cisco 2821 and Cisco 2851 Chassis

Figure 13, Figure 14, and Figure 15 show the front panel of Cisco 2821 and Cisco 2851 routers. Figure 16 shows the rear panel of a Cisco 2821 router. Figure 17 shows the rear panel of a Cisco 2851

router.

Figure 13 Front Panel of Cisco 2821 and Cisco 2851 Routers with AC Input Power and Without IP Phone Power Output

1 Input power connection 5 External CompactFlash memory card slot

2 On/Off switch 6 LED indicators

3 Console and auxiliary ports 7 Cisco redundant power supply connector (covered if not used)

4 Universal serial bus (USB) ports

Figure 14 Front Panel of Cisco 2821 and Cisco 2851 Routers with AC Input Power and IP Phone Power Output

1 Input power connection 5 External CompactFlash memory card slot

2 On/Off switch 6 LED indicators

3 Console and auxiliary ports 7 Cisco redundant power supply connector (covered if not used)

4 Universal serial bus (USB) ports

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Chassis Views

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SYS

PWR

AUX/ PWR

SYS ACT CF

12V 18A

457 6 3

CONSOLE

AUX

24-60V 12A

95572

6 4 3 75

A= ACT

GE 0/1

PVDM2 PVDM1 PVDM0 AIM1 AIM0

GE 0/0

S= SPEED

A= FDX A= LINK

EVM 2 ONLY

Figure 15 Front Panel of Cisco 2821 and Cisco 2851 Routers with DC Input Power

1 Input power connection 5 External CompactFlash memory card slot

2 On/Standby switch

6 LED indicators

3 Console and auxiliary ports 7 Cisco redundant power supply connector (covered if not used)

4 Universal serial bus (USB) ports

1. This switch does not turn off the power supply completely, but rather puts it in standby mode.

Figure 16 Rear Panel of the Cisco 2821 Router

1 Gigabit Ethernet port 0/0 6 High-speed WAN interface card slot 3

2 Gigabit Ethernet port 0/1 7 Extension voice module (EVM) slot

3 High-speed WAN interface card slot 0 8 Network module enhanced (NME) slot

4 High-speed WAN interface card slot 1 9 Screw holes for ground lug

5 High-speed WAN interface card slot 2

1. The network module slot is compatible with Cisco network modules of type NM (network module), NME (network module enhanced), and NME-X (enhanced extended).

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Interface Numbering

EVM 2 ONLY

A= ACT

GE 0/1

PVDM2 PVDM1 PVDM0 AIM1 AIM0

GE 0/0

S= SPEED

A= FDX A= LINK

H W I C 2

H W I C 0

H W I C 3

H W I C 1

95557

461

Figure 17 Rear Panel of the Cisco 2851 Router

Gigabit Ethernet port 0/0

Gigabit Ethernet port 0/1

High-speed WAN interface card slot 0

High-speed WAN interface card slot 1

High-speed WAN interface card slot 2

High-speed WAN interface card slot 3

7 Extension voice module (EVM) slot

8 Network module enhanced (NME) slot

Screw holes for ground lug

1. The network module slot is compatible with Cisco network modules of type NM (network module), NME (network module enhanced), NME-X (enhanced extended), NMD (double-wide), and NME-XD (enhanced extended double-wide).

Interface Numbering

Table 7 summarizes the interface numbering on a Cisco 2801 series router. Table 8 summarizes the

interface numbering on Cisco 2811, Cisco 2821, and Cisco 2851 series routers.

Note The interface numbering on Cisco 2800 series routers is different from the numbering on Cisco 2600

series routers.

Note On the Cisco 2801 router, the numbering format for slots is interface type 0/slot/port. “0” indicates slots

that are built into the chassis of a router. On the Cisco 2801 router, all slots begin with “0,” because all slots are built into the chassis. Note that this is different from the Cisco 2811, Cisco 2821, and Cisco 2851 routers. On these routers, some slots are built into the chassis and have slot numbers that begin with “0”. However, it is possible to have other slots that are part of a network module or an extension voice module. Those slots have slot numbers that begin with “1” or “2,” respectively.

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Interface Numbering

Table 7 Interface Numbering on Cisco 2801 Series Routers

Slot Number Slot Type Interface Numbering Range

Onboard ports Fast Ethernet 0/0 and 0/1

0 VIC / VWIC (voice only) 0/0/0 to 0/0/3

1 HWIC / WIC / VIC / VWIC

0/1/0 to 0/1/3 (single-wide HWIC)

0/1/0 to 0/1/7 (double-wide HWIC)

2 WIC / VIC / VWIC

3 HWIC / WIC / VIC / VWIC

0/2/0 to 0/2/3

0/3/0 to 0/3/3 (single-wide HWIC)

0/3/0 to 0/3/7 (double-wide HWIC)

1. A VWIC in slots 1, 2, and 3 can operate in both data and voice mode; in slot 0, a VWIC can operate only in voice mode.

Note On the Cisco 2801 router, the numbering format for configuring an asynchronous interface is 0/slot/port.

To configure the line associated with an asynchronous interface, simply use the interface number to specify the async line. For example, line 0/1/0 specifies the line associated with interface serial 0/1/0 on a WIC-2A/S in slot 1. Similarly, line 0/2/1 specifies the line associated with interface async 0/2/1 on a WIC-2AM in slot 2.

Table 8 Interface Numbering on Cisco 2811, Cisco 2821, and Cisco 2851 Integrated Services Routers

Port Location Interface Numbering Scheme Examples1,

Built into the chassis front panel Interface-type port usb 0

usb 1

Built into the chassis rear panel Interface-type 0 / port interface fa 0/x

interface gi 0/x

In an interface card (HWIC, HWIC-D, WIC, VWIC, VIC) plugged directly into an HWIC slot in a chassis

Interface-type 0 / interface-card-slot

Note Interface card slots built into the chassis are labeled

HWIC slot-number on

/ port

Cisco 2800 series routers.

interface serial 0/x/y interface async 0/x/y line 0/x/y

interface fa 0/x/y

voice-port 0/x/y

In an interface card (WIC, VWIC, VIC) plugged into a slot in a network module

Built into a network module (NME, NME-X, NMD, NME-XD)

FXS or FXO port in an extension voice module (EVM)

Interface-type 1

Interface-type 15 / port interface gi 1/x

Interface-type 26 / 07 / port

FXS/DID port numbers 0 to 7 are built into the EVM.

/ interface-card-slot / port controller t1 1/x/y

voice-port 1/x/y interface serial 1/x/y interface async 1/x/y line 1/x/y

interface serial 1/x interface async 1/x line 1/x

voice-port 2/0/x

FXS/FXO port numbers 8 to 15 are in expansion module 0.

FXS/FXO port numbers 16 to 23 are in expansion module 1.

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Specifications

Table 8 Interface Numbering on Cisco 2811, Cisco 2821, and Cisco 2851 Integrated Services Routers (continued)

Port Location Interface Numbering Scheme Examples1,

Voice port in a BRI expansion module (internal slot) in an extension voice module (EVM)

BRI interface in a BRI expansion module (internal slot) in an extension voice module (EVM)

Interface-type 2

Port numbers are 8 to 11 in expansion module 0.

Port numbers are 16 to 19 in expansion module 1.

Interface-type 2

Port numbers are 0 to 3 if one expansion module is installed.

/ 07 / port

/ port

voice-port 2/0/x

interface bri 2/x

Port numbers are 0 to 7 if two expansion modules are installed.

1. Interface abbreviations: fa = Fast Ethernet; gi = Gigabit Ethernet; usb = universal serial bus; bri = ISDN basic rate interface.

2. The interfaces listed are examples only; other possible interface types are not listed.

3. Interface card slot numbers for double-width (HWIC-D) slots are 1 and 3 only.

4. Specify the line number in the Cisco IOS CLI by using the interface number for the associated asynchronous serial interface.

5. “1” is the network module slot number in all Cisco 2800 series routers.

6. “2” is the EVM slot number in Cisco 2821 and Cisco 2851 routers.

7. “0” is required by the CLI syntax for voice ports in an EVM; it indicates no interface card slots in EVMs.

Note On the Cisco 2811, Cisco 2821, and Cisco 2851 routers, the interface numbering scheme is the same for

asynchronous interfaces as other types of interfaces. To configure the line associated with an async interface, simply use the interface number to specify the async line. For example, line 0/3/0 specifies the line associated with interface serial 0/3/0 on a WIC-2A/S in slot 3. Similarly, line 1/22 specifies the line associated with interface async 1/22 on a NM-32A in network module slot 1.

Specifications

Table 9, Ta ble 10, Table 11 , and Tabl e 12 list Cisco 2800 series specifications.

Table 9 Cisco 2801 Router Specifications

Description Specification

Dimensions (H x W x D) 1.72 x 17.49 x 16.5 in. (4.4 x 44.4 x 41.9 cm).

Weight 10.9 lb (4.9 kg) with standard power supply if fully populated with

AC input power

• Input voltage

• Frequency

• Input current

• Inrush surge current

Power consumption 105 W with standard power supply (maximum)

Console and auxiliary ports RJ-45 connector

modules

13.71 lb (6.2 kg) with inline power supply if fully populated with modules

100 to 240 VAC, autoranging

47 to 63 Hz

2 A (5 A for IP phone support)

50 A maximum, one cycle (–48V power included)

130 W with inline power supply and 12 IP phones (maximum)

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Table 9 Cisco 2801 Router Specifications (continued)

Description Specification

Operating humidity 5 to 95%, noncondensing

Operating temperature 32 to 104° F (0 to 40° C)

Nonoperating temperature –4 to 149° F (–20 to 65° C)

Noise level, standard power supply

39 dBA for local temperatures < 90° F (32° C) 47 dBA for local temperatures between 90° F and 116° F (47° F)

52.6 dBA for temperatures above 116° F (47° F)

Noise level, inline power supply 44 dBA for local temperatures < 90° F (32° C)

50 dBA for local temperatures between 90° F and 116° F (47° F) 53 dBA for temperatures above 116° F (47° F)

Safety compliance UL 60950; CAN/CSA C22.2 No. 60950-00; IEC 60950;

EN 60950-1; AS/NZS 60950

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

Immunity compliance EN300386; EN55024/CISPR24; EN50082-1; EN61000-6-2

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

EMC compliance FCC Part 15; ICES-003 Class A; EN55022 Class A;

CISPR22 Class A; AS/NZS 3548 Class A; VCCI Class A; EN 300386; EN61000-3-3; EN61000-3-2

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

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Table 10 Cisco 2811 Router Specifications

Description Specification

Dimensions (H x W x D) 1.75 x 17.25 x 16.4 in. (44.5 x438.2 x 416.6 mm), 1 RU height

Weight 14 lb (6.36 kg) if fully populated with modules

AC input power

• Input voltage

• Frequency

• Input current

• Inrush surge current

100 to 240 VAC, autoranging

47 to 63 Hz

2 A (4 A for IP phone support)

50 A maximum, one cycle (–48V power included)

DC input power

• Input voltage

• Input current

• Inrush surge current

24 to 60 VDC, positive or negative

8 A at 24 V

50 A, maximum, <10 ms

Power dissipation (maximum)

• AC without

IP phone support

• AC with

170 W (580 BTU/hr)

IP phone support:

System only IP phones

210 W (717 BTU/hr) 160 W (546 BTU/hr)

180 W (614 BTU/hr)

Console and auxiliary ports RJ-45 connector

Operating humidity 5 to 95%, noncondensing

Operating temperature 32 to 104° F (0 to 40° C)

Nonoperating temperature –4 to 149° F (–20 to 65° C)

Noise level 47 dBA in normal ambient temperature;

57 dBA in maximum ambient temperature

Safety compliance UL 60950; CAN/CSA C22.2 No. 60950-00; IEC 60950;

EN 60950-1; AS/NZS 60950

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

Immunity compliance EN300386; EN55024/CISPR24; EN50082-1; EN61000-6-2

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

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Table 10 Cisco 2811 Router Specifications (continued)

Description Specification

EMC compliance FCC Part 15; ICES-003 Class A; EN55022 Class A;

CISPR22 Class A; AS/NZS 3548 Class A; VCCI Class A; EN 300386; EN61000-3-3; EN61000-3-2

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

Specifications

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Specifications

Table 11 Cisco 2821 Router Specifications

Description Specification

Dimensions (H x W x D) 3.5 x 17.25 x 16.4 in. (88.9 x 438.2 x 416.6 mm), 2 RU height

Weight 25 lb (11.36 kg) if fully populated with modules

AC input power

• Input voltage

• Frequency

• Input current

• Inrush surge current

100 to 240 VAC, autoranging

47 to 63 Hz

3 A (8 A for IP phone support)

50 A maximum, one cycle (–48 V power included)

DC input power

• Input voltage

• Input current

• Inrush surge current

24 to 60 VDC, positive or negative

12 A at 24 V

50 A, maximum, <10 ms

Power dissipation (maximum)

• AC without

IP phone support

• AC with

280 W (955 BTU/hr)

IP phone support:

–

• DC

System only

IP phones

310 W (1058 BTU/hr)

240 W (820 BTU/hr)

300 W (1024 BTU/hr)

Console and auxiliary ports RJ-45 connector

Operating humidity 5 to 95%, noncondensing

Operating temperature 32 to 104° F (0 to 40° C)

Nonoperating temperature –4 to 149° F (–20 to 65° C)

Noise level 44 dBA in normal ambient temperature;

52 dBA in maximum ambient temperature

Safety compliance UL 60950; CAN/CSA C22.2 No. 60950-00; IEC 60950;

EN 60950-1; AS/NZS 60950

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

Immunity compliance EN300386; EN55024/CISPR24; EN50082-1; EN61000-6-2

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

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Table 11 Cisco 2821 Router Specifications (continued)

Description Specification

EMC compliance FCC Part 15; ICES-003 Class A; EN55022 Class A;

CISPR22 Class A; AS/NZS 3548 Class A; VCCI Class A; EN 300386; EN61000-3-3; EN61000-3-2

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

Specifications

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Table 12 Cisco 2851 Router Specifications

Description Specification

Dimensions (H x W x D) 3.5 x 17.25 x 16.4 in. (88.9 x 438.2 x 416.6 mm), 2 RU height

Weight 25 lb (11.36 kg) if fully populated with modules

AC input power

• Input voltage

• Frequency

• Input current

• Inrush surge current

100 to 240 VAC, autoranging

47 to 63 Hz

3 A (8 A for IP phone support)

50 A maximum, one cycle (–48 V power included)

DC input power

• Input voltage

• Input current

• Inrush surge current

24 to 60 VDC, positive or negative

12 A at 24 V

50 A, maximum, <10 ms

Power dissipation (maximum)

• AC without

IP phone support

• AC with

280 W (955 BTU/hr)

IP phone support:

–

• DC

System only

IP phones

370 W (1262 BTU/hr)

360 W (1128 BTU/hr)

300 W (1024 BTU/hr)

Console and auxiliary ports RJ-45 connector

Operating humidity 5 to 95%, noncondensing

Operating temperature 32 to 104° F (0 to 40° C)

Nonoperating temperature –4 to 149° F (–20 to 65° C)

Noise level 44 dBA in normal ambient temperature;

52 dBA in maximum ambient temperature

Safety compliance UL 60950; CAN/CSA C22.2 No. 60950-00; IEC 60950;

EN 60950-1; AS/NZS 60950

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

Immunity compliance EN300386; EN55024/CISPR24; EN50082-1; EN61000-6-2

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

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Table 12 Cisco 2851 Router Specifications (continued)

Description Specification

EMC compliance FCC Part 15; ICES-003 Class A; EN55022 Class A;

Regulatory Compliance

For compliance information, refer to the Cisco 2800 and Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document that accompanied the router.

Regulatory Compliance

CISPR22 Class A; AS/NZS 3548 Class A; VCCI Class A; EN 300386; EN61000-3-3; EN61000-3-2

For detailed compliance information, refer to the Cisco 2800 and

Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document.

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Regulatory Compliance

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Overview of Cisco 2800 Series Routers

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