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This chapter provides information on the Cisco 2500 series routers. It is organized into the following sections:
The Cisco 2500 series routers provide a variety of models designed for small office and remote site environments. Each model supports 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:
All the Cisco 2500 series models support the features listed in Table 51.
| Characteristic | Description |
|---|---|
| Flash memory | Minimum of 8 MB of Flash memory, except for the mission-specific routers which require only 4 MB of flash. However, depending on the Cisco IOS release that shipped with the system, it might require more memory. Refer to Table 153 and Table 154, later in this 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 Table 153 and Table 154, later in this 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 |
The environmental specifications for the Cisco 2500 series are listed in Table 52.
| 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% |
The Cisco 2500 series routers are discussed in the following sections:
All Cisco 2500 models include a minimum of 8 MB of Flash memory, except for the mission-specific router which includes 4 MB of flash. 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 Table 53, 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.
| 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 |
The Cisco 2500 series offers the hardware, memory, and NPM cable options listed in Table 54. 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.
| Description | Product Number |
|---|---|
| Rack-Mount Kits | |
| 19-in. rack-mount kit1 | ACS-2500RM-19= |
| 24-in. rack-mount kit | A25-2500RM-24= |
| DRAM Memory Options | |
| 4-MB DRAM SIMM (spare) | MEM-1X4D= |
| 4-MB to 8-MB DRAM SIMM (spare) | MEM-1X8D= |
| 4-MB to 16-MB DRAM SIMM (spare) | MEM-1X16D= |
| Flash Memory Options | |
| 4-MB Flash SIMM (spare) | MEM-1X4F= |
| 8-MB to 16-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 |
| Redundant Power Systems | |
| 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 |
Models 2501, 2502, 2503, 2504, 2520, 2521, and 25223 (see Figure 93 through Figure 99) contain the common Cisco 2500 series features listed in Table 51. In addition, these models support the network interfaces listed in Table 55.
| Model | Ethernet | Token Ring | Low-Speed Serial1 | Serial2 | ISDN BRI |
|---|---|---|---|---|---|
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 |
Models 2505, 2507, and 2516 (see Figure 100 through Figure 102) support integrated hub functionality as well as all the common features listed in Table 51. In addition, these models support the interfaces listed in Table 56.
| Model | Ethernet 10BaseT | Ethernet AUI | Token Ring | Token Ring Ring In/ Ring Out | Serial | Hub Ports | BRI |
|---|---|---|---|---|---|---|---|
1 | 0 | 0 | 0 | 2 | 8 | 0 | |
1 | 0 | 0 | 0 | 2 | 16 | 0 | |
1 | 0 | 0 | 0 | 2 | 14 | 1 |
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.
Models 2513, 2514, and 2515 (see Figure 103 through Figure 105) provide higher-density LAN support and include all the common features listed in Table 51. In addition, these models support the interfaces listed in Table 57.
| Model | Ethernet | Token Ring | Serial | ISDN BRI |
|---|---|---|---|---|
2513 | 1 | 1 | 2 | 0 |
2514 | 2 | 0 | 2 | 0 |
2515 | 0 | 2 | 2 | 0 |
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:
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 106 shows the rear view of the Cisco 2524 router, and Figure 107 shows the rear view of the Cisco 2525 router.
Figure 108 through Figure 113 show the WAN modules.
The hardware options for Cisco 2500 series routers include additional rack-mount kits, memory, and cables. Table 58 lists the base product numbers for each model, and Table 54 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).
The Cisco IOS software available for the Cisco 2500 series router is described in the following sections:
The Cisco 2500 series routers support the following software releases:
Note that entry-level, mission-specific models are not listed because software is included with the hardware.
The Cisco 2500 series offers the following types of feature sets:
The Cisco IOS feature set tables use the following conventions to identify features:
Software feature packs consist of CD-ROMs that contain Cisco IOS software feature set images and a Windows 95 application, which loads the images onto a router.
Software feature packs are available for most of the Cisco IOS Release 11.2 feature set images listed in Table 14. Table 59 lists the product numbers for feature sets and feature packs available in Cisco IOS Release 11.2.
For more information about software feature packs, see the section "Cisco IOS Feature Packs" in the chapter "Cisco IOS Software," earlier in the catalog.
This section describes the software product numbers for the Cisco 2500 series. Table 59 lists the software feature set product numbers and minimum memory requirements for Cisco IOS Releases 11.1 and 11.0.
| Product Numbers and Memory Requirements | ||||
|---|---|---|---|---|
| Cisco IOS Release 11.2 | ||||
| Feature Set | Product Number1 | Flash | Minimum DRAM2 Models 2501-25163 and 2520-2525 | Default DRAM2 Models 2517-2519 2501-25163 and 2520-2525 |
| IP | CD25-C-11.2=4 | 8 MB | 4 MB | 4 MB |
| IP Plus | CD25-CP/E-11.2=4 | 8 MB | 4 MB | 4 MB |
| IP Plus 40 | CD25-CW-11.2=4 | 8 MB | 4 MB | 4 MB |
| IP Plus 56 | CD25-CY-11.2=4 | 8 MB | 4 MB | 4 MB |
| Desktop (IP/IPX/AppleTalk/DEC) | CD25-B-11.2=4 | 8 MB | 4 MB | 4 MB |
| Desktop Plus | CD25-BP-11.2=4 | 8 MB | 4 MB | 4 MB |
| Desktop Plus 40 | CD25-BW-11.2=4 | 8 MB | 4 MB | 4 MB |
| Desktop Plus 56 | CD25-BY-11.2=4 | 8 MB | 4 MB | 4 MB |
| Enterprise | CD25-A-11.2=4 | 8 MB | 6 MB | 8 MB |
| Enterprise Plus | CD25-AP-11.2=4 | 8 MB | 6 MB | 8 MB |
| Enterprise Plus 40 | CD25-AW-11.2=4 | 8 MB | 6 MB | 8 MB |
| Enterprise Plus 56 | CD25-AY-11.2=4 | 8 MB | 6 MB | 8 MB |
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