Table of Contents

Cisco 2500 Series

Cisco 2500 Series

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:

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:

Standard Features

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


Table 7-63: Cisco 2500 Series Summary of Features
Characteristic Description
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.1
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 APPN2

Desktop

Desktop with IBM base functionality

Enterprise

Enterprise/APPN2

RMON

Mission-specific Cisco 2500 series: application-specific software

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)
Standard components Power supply and cord

Console cable kit3

RJ-45-to-DB-9 adapter

19 in. rack-mount/wall-mount kit


1 If your system requires more than 8 MB of Flash memory, the additional memory must be ordered separately.
2 This feature set is available with Cisco IOS Release 11.0 and later releases.
3 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 7-64: Cisco 2500 Series Environmental Specifications
Description Specification
Consumption For models 2501 to 2525: 40W
Input For models 2501 to 2516 and 2520 to 2525: 110 to 220 VAC1, 50 to 60 Hz -48 VDC2
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)
Nonoperating temperature range For models 2501 to 2516 and 2520 to 2525: -40 to 185°F (-40 to 85°C)
Humidity (noncondensing) For models 2501 to 2525: 5 to 95%

1 VAC = volts alternating current.
2 VDC = volts direct current.

Hardware

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

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 of Flash memory. However, depending on the Cisco IOS software release shipped with the system, it might require more memory. 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 7-65: Shared and Primary DRAM Memory--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

Hardware Product Numbers

The Cisco 2500 series offers the hardware, memory, and NPM cable options listed in the following table. If a product number ends with an equal sign (=), the item can be ordered only as a spare. If a product number does not end with an equal sign, the item can be ordered as a spare or as a configurable part of a system order. Other hardware options can also be ordered through the Cisco authorized reseller channel.

Note For options that apply to most systems, refer to the "Cables and Transceivers" or "Power Cords" chapters later in the catalog.

Table 7-66: Cisco 2500 Series Hardware Options
Description Product Number
Rack-Mount Kits
19-in. rack-mount kit1 ACS-2500RM-19=
24-in. rack-mount kit A25-2500RM-24=
Memory Options
Boot ROM upgrade BOOT-2500=
DRAM Memory Options
4-MB DRAM SIMM (spare) MEM-1X4D=
4-MB to 8-MB DRAM SIMM Factory Upgrade MEM2500-4U8D
8-MB DRAM SIMM (spare) MEM-1X8D=
4-MB to 16-MB DRAM SIMM Factory Upgrade MEM2500-4U16D
16-MB DRAM SIMM (spare) MEM-1X16D=
8-MB to 16-MB DRAM SIMM Factory Upgrade MEM2500-8U16D
Flash Memory Options
4-MB Flash SIMM (spare) MEM-1X4F=
8-MB to 16-MB Flash SIMM Factory Upgrade MEM2500-8U16F
8-MB Flash SIMM (spare) MEM-1X8F=
Modules
2-wire switched 56-kbps CSU/DSU module (for Cisco 2524 and Cisco 2525 routers only) SM25-56K2
4-wire 56/64-kbps DSU/CSU module (for Cisco 2524 and Cisco 2525 routers only) SM25-56K4
Fractional T1/T1 DSU/CSU module (for Cisco 2524 and Cisco 2525 routers only) SM25-T1
Five-in-one synchronous serial module (for Cisco 2524 and Cisco 2525 routers only) SM25-5IN1
ISDN BRI module (for Cisco 2524 and Cisco 2525 routers only) SM25-BRI-S/T
ISDN with integrated NT1 device module (for Cisco 2524 and Cisco 2525 routers only) SM25-BRI-U
Blank slot cover (for Cisco 2524 and Cisco 2525 routers only) SM25-BLANK
Redundant Power Systems
600W redundant AC power system for the Cisco 2500 series routers PWR-600-AC-RPS
Redundant power supply 22/18 OIR Y-load cable CAB-RPSY-2208
Redundant power supply 22/18 load cable CAB-RPS-2218=
Redundant power supply 22/08 load cable CAB-RPS-2208=
Redundant power supply field upgrade for Cisco 2500 series routers ACS-2500RPS=
Cables
EIA/TIA-232 male DTE interface, 10 ft (3 m) CAB-232MT
EIA/TIA-232 female DCE interface, 10 ft (3 m) CAB-232FC
EIA/TIA-449 male DTE interface, 10 ft (3 m) CAB-449MT
EIA/TIA-449 female DCE interface, 10 ft (3 m) CAB-449FC
EIA-530 male DTE interface, 10 ft (3 m) CAB-530MT
V.35 male DTE interface, 10 ft (3 m) CAB-V35MT
V.35 female DCE interface, 10 ft (3 m) CAB-V35FC
X.21 male DTE interface, 10 ft (3 m) CAB-X21MT
X.21 female DCE interface, 10 ft (3 m) CAB-X21FC
Ethernet AUI adapter cable CAB-3CE18=
Auxiliary/console cable kit2 ACS-2500ASYN
RJ-45-to-DB-25 management card console cable CAB-MGMT-RH
Shielded power cable, United States CABS-AC
Shielded power cable, Australia CABS-ACA
Shielded power cable, Italy CABS-ACI
Shielded power cable, Europe CABS-ACE
Shielded power cable, United Kingdom CABS-ACU

1 The 19-inch rack-mount kit can only be ordered as a spare; a 19-inch rack-mount kit is included with all Cisco 2500 series routers. An optional 24-inch rack-mount kit can be ordered from Cisco Systems.
2 The auxiliary/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 adapter.

Single LAN Routers

Models 2501, 2502, 2503, 2504, 2520, 2521, 2522, and 2523 (see Figure 7-116 through Figure 7-123) contain the common Cisco 2500 series features listed in the following table. In addition, these models support the network interfaces listed in Table 7-68.

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

Table 7-67: Single LAN Router Network Interfaces
Model Ethernet Token Ring Low-Speed Serial Serial ISDN BRI
2501 1 0 0 2 0
2502 0 1 0 2 0
2503 1 0 0 2 1
2504 0 1 0 2 1
2520 1 0 2 2 1
2521 0 1 2 2 1
2522 1 0 8 2 1
2523 0 1 8 2 1

Figure 7-116: Cisco 2501 Rear View




Figure 7-117: Cisco 2502 Rear View




Figure 7-118: Cisco 2503 Rear View




Figure 7-119: Cisco 2504 Rear View




Figure 7-120: Cisco 2520 Rear View




Figure 7-121: Cisco 2521 Rear View




Figure 7-122: Cisco 2522 Rear View




Figure 7-123: 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 7-68: Mission-Specific Router Network Interfaces
Model Ethernet Token Ring Serial Low-Speed Serial ISDN BRI
2501CF Software disabled 0 2 0 0
2501LF 1 0 2 0 0
2502CF 0 Software disabled 2 0 0
2502LF 0 1 2 0 0
2503I 1 0 Software disabled 0 1
2504I 0 1 Software disabled 0 1
2520CF Software disabled 0 2 2 Software disabled
2520LF 1 0 2 2 Software disabled
2521CF 0 Software disabled 2 2 Software disabled
2521LF 0 1 2 2 Software disabled
2522CF Software disabled 0 2 8 Software disabled
2522LF 1 0 2 8 Software disabled
2523CF 0 Software disabled 2 8 Software disabled
2523LF 0 1 2 8 Software disabled

Router/Hub Combinations

Models 2505, 2507, and 2516 (see Figure 7-124 through Figure 7-126) support integrated hub functionality as well as all the common features listed in Table 7-67. In addition, these models support the interfaces listed in the following table.


Table 7-69: Router/Hub Interface Options
Model Ethernet 10BaseT Ethernet AUI Token Ring Token Ring
Ring In/ Ring Out 		Serial Hub Ports BRI
2505 1 0 0 0 2 8 0
2507 1 0 0 0 2 16 0
2516 1 0 0 0 2 14 1

Figure 7-124: Cisco 2505 Rear View




Figure 7-125: Cisco 2507 Rear View




Figure 7-126: Cisco 2516 Rear View



Access Servers

Models 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 later in the catalog.

Dual LAN Routers

Models 2513, 2514, and 2515 (see Figure 7-127 through Figure 7-129) provide higher-density LAN support and include all the common features listed in Table 7-67. In addition, these models support the interfaces listed in the table below.


Table 7-70: Dual LAN Router Interface Options
Model Ethernet Token Ring Serial ISDN BRI
2513 1 1 2 0
2514 2 0 2 0
2515 0 2 2 0

Figure 7-127: Cisco 2513 Rear View




Figure 7-128: Cisco 2514 Rear View




Figure 7-129: Cisco 2515 Rear View



Modular Routers

Models 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:

Note The five-in-one synchronous serial WAN module gets its name from the five types of signaling it supports, which include the following: 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:

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 7-130: Cisco 2524 Rear View




Figure 7-131: Cisco 2525 Rear View




Figure 7-132: 2-Wire, Switched, 56-Kbps DSU/CSU WAN Module




Figure 7-133: 4-Wire, 56/64-kbps DSU/CSU WAN Module




Figure 7-134: Fractional T1/T1 DSU/CSU WAN Module




Figure 7-135: ISDN BRI WAN Module




Figure 7-136: ISDN BRI with Integrated NT1 WAN Module




Figure 7-137: Five-in-One Synchronous Serial WAN Module




Figure 7-138: Blank Slot Cover



Hardware Product Numbers

The hardware options for Cisco 2500 series routers include additional rack-mount kits, memory, and cables. The following table lists the base product numbers for each model, and Table 7-66 lists the hardware options available. If a product number ends with an equal sign (=), you can order the item as a spare only. If a product number does not end with an equal sign, you can order the item as a spare or as a configurable part of a system order.

The Cisco 2500 series routers also come with a 19-inch rack-mount kit and a console cable kit (which 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 a DB-9 adapter).

Note For more information, including cable illustrations, refer to the "Cables and Transceivers" chapter. The "Power Cords" chapter provides international power cord product numbers.

Table  7-71: Cisco 2500 Series Base Models Hardware Product Numbers
Model Description Product Number
Cisco 2501 1 Ethernet, 2 serial, AC power supply CISCO2501
Cisco 2501-DC 1 Ethernet, 2 serial, DC power supply CISCO2501-DC
Cisco 2501CF1 2 serial, CFRAD software, AC power supply CISCO2501CF
Cisco 2501LF 1 Ethernet, 2 serial, LAN FRAD software, AC power supply CISCO2501LF
Cisco 2502 1 Token Ring, 2 serial, AC power supply CISCO2502
Cisco 2502CF1 2 serial, CFRAD software, AC power supply CISCO2502CF
Cisco 2502LF 1 Token Ring, 2 serial, LAN FRAD software, AC power supply CISCO2502LF
Cisco 2503 1 Ethernet, 2 serial, 1 ISDN BRI, AC power supply CISCO2503
Cisco 2503-DC 1 Ethernet, 2 serial, 1 ISDN BRI, DC power supply CISCO2503-DC
Cisco 2503I1 1 Ethernet, 1 ISDN BRI, ISDN software, AC power supply CISCO2503I
Cisco 2503I-DC1 1 Ethernet, 1 ISDN BRI, ISDN software, DC power supply CISCO2503I-DC
Cisco 2504 1 Token Ring, 2 serial, 1 ISDN BRI, AC power supply CISCO2504
Cisco 2504-DC 1 Token Ring, 2 serial, 1 ISDN BRI, DC power supply CISCO2504-DC
Cisco 2504I1 1 Token Ring, 1 ISDN BRI, ISDN software, AC power supply CISCO2504I
Cisco 2505 8 Ethernet UTP hub ports, 2 serial, AC power supply CISCO2505
Cisco 2505-DC 8 Ethernet UTP hub ports, 2 serial, DC power supply CISCO2505-DC
Cisco 2507 16 Ethernet UTP hub ports, 2 serial, AC power supply CISCO2507
Cisco 2507-DC 16 Ethernet UTP hub ports, 2 serial, DC power supply CISCO2507-DC
Cisco 25092 1 Ethernet, 2 serial, 8 async serial, AC power supply CISCO2509
Cisco 2509-DC2 1 Ethernet, 2 serial, 8 async serial, DC power supply CISCO2509-DC
Cisco 25102 1 Token Ring, 2 serial, 8 async serial, AC power supply CISCO2510
Cisco 25112 1 Ethernet, 2 serial, 16 async serial, AC power supply CISCO2511
Cisco 2511-DC2 1 Ethernet, 2 serial, 16 async serial, DC power supply CISCO2511-DC
Cisco 25122 1 Token Ring, 2 serial, 16 async serial, AC power supply CISCO2512
Cisco 2513 1 Ethernet, 1 Token Ring, 2 serial, AC power supply CISCO2513
Cisco 2514 2 Ethernet, 2 serial, AC power supply CISCO2514
Cisco 2514-DC 2 Ethernet, 2 serial, DC power supply CISCO2514-DC
Cisco 2515 2 Token Ring, 2 serial, AC power supply CISCO2515
Cisco 2516 14 Ethernet UTP hub ports, 2 sync serial, 1 ISDN BRI, AC power supply CISCO2516
Cisco 2516-DC 14 Ethernet UTP hub ports, 2 sync serial, 1 ISDN BRI, DC power supply CISCO2516-DC
Cisco 2520 1 Ethernet, 2 high-speed sync serial, 2 low-speed async/sync serial,
1 ISDN BRI interface, AC power supply 		CISCO2520
Cisco 2520-DC 1 Ethernet, 2 high-speed sync serial, 2 low-speed async/sync serial,
1 ISDN BRI interface, DC power supply 		CISCO2520-DC
Cisco 2520CF1 2 high-speed sync serial, 2 low-speed async/sync serial, CFRAD software, AC power supply CISCO2520CF
Cisco 2520LF1 1 Ethernet, 2 high-speed sync serial, 2 low-speed async/sync serial,
LAN FRAD software, AC power supply 		CISCO2520LF
Cisco 2521 1 Token Ring, 2 high-speed sync serial, 2 low-speed async/sync serial,
1 ISDN BRI interface, AC power supply 		CISCO2521
Cisco 2521-DC 1 Token Ring, 2 high-speed sync serial, 2 low-speed async/sync serial,
1 ISDN BRI interface, DC power supply 		CISCO2521-DC
Cisco 2521CF1 2 high-speed sync serial, 2 low-speed async/sync serial,
CFRAD software, AC power supply 		CISCO2521CF
Cisco 2521LF1 1 Token Ring, 2 high-speed sync serial, 2 low-speed async/sync serial,
LAN FRAD software, AC power supply 		CISCO2521LF
Cisco 2522 1 Ethernet, 2 high-speed sync serial, 8 low-speed async/sync serial,
1 ISDN BRI interface, AC power supply 		CISCO2522
Cisco 2522-DC 1 Ethernet, 2 high-speed sync serial, 8 low-speed async/sync serial,
1 ISDN BRI interface, DC power supply 		CISCO2522-DC
Cisco 2522CF1 2 high-speed sync serial, 8 low-speed async/sync serial,
CFRAD software, AC power supply 		CISCO2522CF
Cisco 2522LF1 1 Ethernet, 2 high-speed sync serial, 8 low-speed async/sync serial,
LAN FRAD software, AC power supply 		CISCO2522LF
Cisco 2523 1 Token Ring, 2 high-speed sync serial, 8 low-speed async/sync serial,
1 ISDN BRI interface, AC power supply 		CISCO2523
Cisco 2523-DC 1 Token Ring, 2 high-speed sync serial, 8 low-speed async/sync serial,
1 ISDN BRI interface, DC power supply 		CISCO2523-DC
Cisco 2523CF1 2 high-speed sync serial, 8 low-speed async/sync serial,
CFRAD software, AC power supply 		CISCO2523CF
Cisco 2523LF1 1 Token Ring, 2 high-speed sync serial, 8 low-speed async/sync serial,
LAN FRAD software, AC power supply 		CISCO2523LF
Cisco 2524 1 Ethernet (AUI or 10BaseT) with 3 slots for WAN modules, AC power supply CISCO2524
Cisco 2524-DC 1 Ethernet (AUI or 10BaseT) with 3 slots for WAN modules, DC power supply CISCO2524-DC
Cisco 2525 1 Token Ring (STP or UTP) with 3 slots for WAN modules, AC power supply CISCO2525

1 Mission-specific router. Mission-specific routers are based on standard Cisco 2500 hardware, but they contain less memory and run reduced Cisco IOS images that disable unused ports and support a subset of protocols. By adding software, and possibly memory, mission-specific routers can be upgraded to full standard router functionality.
2 See the "Access Servers" chapter later in this catalog, for more information.

Software

Refer to the "Cisco Internetwork Operating System (IOS) Software" chapter for detailed software feature set information.


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