Cisco 2500 Router products

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Cisco 2500 Series — Fixed and Modular Access Routers

Cisco 2500 Series — Fixed and Modular Access Routers

Product Overview

The Cisco 2500 series routers provide a variety of models designed for branch office and remote site environments. These routers are typically fixed configuration with at least two of the following interfaces:

  • Ethernet (AUI)

  • 10BaseT Ethernet hub

  • Token Ring

  • Synchronous serial

  • Asynchronous serial

  • ISDN BRI

Key Features and Benefits

Cisco 2500 routers come with Flash EPROM technology for simplified software maintenance. These systems support a variety of Cisco IOS software feature sets, so you can choose a feature set that supports your specific protocol environment. The software feature sets range from an IP and bridging-only to the full array of Cisco`s software functionality, including APPN and RMON.

Mission-specific models contain less memory and less hardware functionality to support a subset of protocols. Each mission-specific model can be upgraded to full router capability by downloading a new Cisco IOS software feature set and, if necessary, adding memory.

Cisco 2500 series models can be divided into the following categories:

  • Single LAN routers — Models 2501, 2502, 2503, 2504, 2520, 2521, 2522 and 2523

  • Mission-specific, entry-level routers — Models 2501CF, 2501LF, 2502CF, 2502LF, 2503I, 2504I, 2520CF, 2520LF, 2521CF, 2521LF, 2522CF, 2522LF, 2523CF and 2523LF

  • Router/hub combinations — Models 2505, 2507 and 2516

  • Access servers — Models 2509 to 2512 (refer to the "Cisco 2500 Series Access Servers" section in the "Access Servers" chapter in the catalog)

  • Dual LAN routers — Models 2513, 2514 and 2515

  • Modular routers — Models 2524 and 2525 (optional integrated DSU/CSU or NT-1)

Specifications

Hardware

All the Cisco 2500 series models support the features listed in the following table.

Table 18-84: Technical Specifications for Cisco 2500 Series

Description

Specification

Flash memory

Minimum of 8 MB of Flash memory, except for the mission-specific routers which require only 4 MB of Flash memory. However, depending on the Cisco IOS release that shipped with the system, it might require more memory. Refer to the "Cisco IOS Software" chapter for the minimum Flash memory required for each feature set.

DRAM memory expandability

Minimum DRAM required by the Cisco IOS release that shipped with the system. Refer to the "Cisco IOS Software" chapter for the minimum DRAM required for each feature set.

Processor type

20 MHz 68030

Software options — Cisco IOS Release 11.2

IP Routing
IP Routing Plus
IP/IPX with IBM base functionality and APPN
Desktop (IP/IPX/AppleTalk/DEC)
Desktop (IP/IPX/AppleTalk/DEC) Plus
Enterprise
Enterprise Plus
Enterprise/APPN/Plus
Mission-specific Cisco 2500 series: application-specific software

Software options — Cisco IOS Release 11.1 and 11.0

IP Routing
IP Routing with IBM base functionality
IP/IPX Routing
IP/IPX Routing with IBM base functionality
IP/IPX with IBM base functionality and APPN
Desktop
Desktop with IBM base functionality
Enterprise
Enterprise/APPN
RMON
Mission-specific Cisco 2500 series: application-specific software

Standard components

Power supply and cord
Console cable kit
RJ-45-to-DB-9 adapter
19 in. rack-mount/wall-mount kit

If your system requires more than 8 MB of Flash memory, the additional memory must be ordered separately.

This feature set is available with Cisco IOS Release 11.0 and later releases.

The console cable kit includes an RJ-45-to-RJ-45 roll-over console cable, an RJ-45-to-DB-25 male DCE adapter, an RJ-45-to-DB-25 female DTE adapter, and an RJ-45-to-DB-9 female DTE adapter


Table 18-85: Physical and Environmental Specifications for Cisco 2500 Series

Description

Specification

Consumption

For models 2501 to 2525: 40W

Input

For models 2501 to 2516 and 2520 to 2525: 110 to 220 VAC, 50 to 60 Hz -48 VDC

Current rating

For models 2501 to 2516 and 2520 to 2525: 1.0A at 60 Hz, 0.5A at 50 Hz

Operating temperature range

For models 2501 to 2516 and 2520 to 2525: 32 to 104°F (0 to 40°C)

Storage temperature range

For models 2501 to 2516 and 2520 to 2525: -40 to 185°F (-40to 85°C)

Humidity (noncondensing)

For models 2501 to 2525: 5 to 95%

Dimensions (H x W x D)

Models 2501 to 2516 and 2520 to 2525: 1.75 x 17.5 x 10.56 in. (4.44 x 44.45 x 26.82 cm)

Weight (average shipping)

Models 2501 to 2516 and 2520 to 2525: 10 lb. (4.5 kg)

Options

The Cisco 2500 series routers are discussed in the following sections:

  • Memory Options

  • Single LAN Routers

  • Mission-Specific Routers

  • Router/Hub Combinations

  • Access Servers

  • Dual LAN Routers

  • Modular Routers

  • Hardware Product Numbers

Memory Options

All Cisco 2500 models include a minimum of 8 MB of Flash memory, except for the mission-specific routers which include 4 MB or 8 MB of Flash memory, depending upon the Cisco IOS software release you order. Additional Flash memory can be purchased to allow for dual banking or potential future code growth.

There are two types of DRAM memory in the Cisco 2500 series routers: primary and shared (packet). Primary memory is used to store the operating configuration, routing tables, caches, and queues. Shared memory is used to store incoming and outgoing packets. In the table below, the physical configuration column lists the amount of DRAM SIMM memory supported. The system usage column lists how the system allocates the total DRAM memory installed.

Table 18-86: Shared and Primary DRAM Memory for Cisco 2500 Series

 

Physical Configuration

System Usage

Total DRAM Memory

DRAM SIMM

Shared DRAM Memory

Primary DRAM Memory

4 MB

4 MB

2 MB

2 MB

8 MB

8 MB

2 MB

6 MB

16 MB

16 MB

2 MB

14 MB

Single LAN Routers

Each Cisco 2501, 2502, 2503, 2504, 2520, 2521, 2522, and 2523 machine contain the common Cisco 2500 series features listed in the following table.

 

Note This section discusses standard models. The mission-specific models are described in the "Mission-Specific Routers" section later in this chapter.

 

Table 18-87: Single LAN Router Network Interfaces

Model

Ethernet

Token Ring

Low-Speed Serial1

Serial2

ISDN BRI

Cisco 2501

1

0

0

2

0

Cisco 2502

0

1

0

2

0

Cisco 2503

1

0

0

2

1

Cisco 2504

0

1

0

2

1

Cisco 2520

1

0

2

2

1

Cisco 2521

0

1

2

2

1

Cisco 2522

1

0

8

2

1

Cisco 2523

0

1

8

2

1

1. Synchronous and asynchronous.

2. Synchronous.


Figure 18-13: Cisco 2501 Rear View

Figure 18-14: Cisco 2502 Rear View

Figure 18-15: Cisco 2503 Rear View

Figure 18-16: Cisco 2504 Rear View

Figure 18-17: Cisco 2520 Rear View

Figure 18-18: Cisco 2521 Rear View

Figure 18-19: Cisco 2522 Rear View

Figure 18-20: Cisco 2523 Rear View

Mission-Specific Routers

Mission-specific routers are entry-level routers that are based on standard Cisco 2500 hardware. However, mission-specific routers contain less memory than standard models and run reduced software images designed for CFRAD, LAN FRAD, and ISDN applications. These reduced software images disable unused ports. Mission-specific routers can be upgraded to full standard-model functionality by purchasing additional software and memory.

Table 18-88: Mission-Specific Router Network Interfaces

Model

Ethernet

Token Ring

Serial

Low-Speed Serial

ISDN BRI

Cisco 2501CF

Software disabled

0

2

0

0

Cisco 2501LF

1

0

2

0

0

Cisco 2502CF

0

Software disabled

2

0

0

Cisco 2502LF

0

1

2

0

0

Cisco 2503I

1

0

Software disabled

0

1

Cisco 2504I

2516:hardware:interfaces>0

1

Software disabled

0

1

Cisco 2520CF

Software disabled

0

2

2

Software disabled

Cisco 2520LF

1

0

2

2

Software disabled

Cisco 2521CF

0

Software disabled

2

2

Software disabled

Cisco 2521LF

0

1

2

2

Software disabled

Cisco 2522CF

Software disabled

0

2

8

Software disabled

Cisco 2522LF

1

0

2

8

Software disabled

Cisco 2523CF

0

Software disabled

2

8

Software disabled

Cisco 2523LF

0

1

2

8

Software disabled

Router/Hub Combinations

The Cisco 2505, 2507, and 2516 support integrated hub functionality as well as all the common features listed in Table 11-89. In addition, these models support the interfaces listed in the following table.

Table 18-89: 10BaseT Hub Ports for Cisco 2500 Series

Model

Serial

Hub Ports

ISDN BRI

Cisco 2505

2

8

0

Cisco 2507

2

16

0

Cisco 2516

2

14

1


Figure 18-21: Cisco 2505 Rear View

Figure 18-22: Cisco 2507 Rear View

Figure 18-23: Cisco 2516 Rear View

 

Access Servers

The Cisco 2509, 2510, 2511, and 2512 are designed to function as access servers for remote node and asynchronous/synchronous routing. For complete information, refer to the "Access Servers" chapter in the catalog.

Dual LAN Routers

The Cisco 2513, 2514, and 2515 provide higher-density LAN support and support the interfaces listed in the table below.

Table 18-90: Dual LAN Router Interface Options

Model

Ethernet

Token Ring

Serial

Cisco 2513

1

1

2

Cisco 2514

2

0

2

Cisco 2515

0

2

2


Figure 18-24: Cisco 2513 Rear View

Figure 18-25: Cisco 2514 Rear View

Figure 18-26: Cisco 2515 Rear View

 

Modular Routers

The Cisco 2524 and 2525 provide LAN and WAN access in a low-cost modular router platform that can grow with your internetworking needs. The Cisco 2524 offers an Ethernet (AUI or 10BaseT) LAN connection, and the Cisco 2525 offers a Token Ring (STP or UTP) LAN connection. Both routers can accommodate up to three WAN modules — two synchronous serial and one ISDN.

The choice of synchronous serial WAN modules is as follows:

  • 2-wire, switched, 56-kbps DSU/CSU

  • 4-wire, 56/64-Kbps DSU/CSU

  • Fractional T1/T1 DSU/CSU

  • Five-in-one synchronous serial

 

Note The five-in-one synchronous serial WAN module gets its name from the five types of signaling it supports, which include: EIA/TIA-232, EIA/TIA-449, V.35, X.21 and EIA-530. You can order a DB-60 shielded serial transition cable. The router end of the cable has a DB-60 connector; the other end of the cable has the appropriate connector for the standard interface you specify.

 

The choice of ISDN WAN modules is as follows:

  • ISDN BRI

  • ISDN with integrated NT1 device

The ISDN WAN modules are keyed so that you cannot insert them into the synchronous serial WAN slots. A blank slot cover is installed over unused slots.

Figure 18-27: Cisco 2524 Rear View

Figure 18-28: Cisco 2525 Rear View

Figure 18-29: 2-Wire, Switched, 56-Kbps DSU/CSU WAN Module

Figure 18-30: 4-Wire, 56/64-kbps DSU/CSU WAN Module

Figure 18-31: Fractional T1/T1 DSU/CSU WAN Module

Figure 18-32: ISDN BRI WAN Module

Figure 18-33: ISDN BRI with Integrated NT1 WAN Module

Figure 18-34: Five-in-One Synchronous Serial WAN Module

Figure 18-35: Blank Slot Cover

Software

Refer to the "Cisco IOS Software" chapter for detailed software feature set information.

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