C H A P T E R 1
Cisco 2500 Series Overview
The Cisco 2500 series is a multiprotocol router platform that is the basis for the following four product types:
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A compact single LAN multiprotocol router
A compact router/hub with 8, 14, or 16 Ethernet ports
A compact router/access server with 8 or 16 asynchronous serial ports
A dual LAN/multiprotocol router
This chapter provides an overview of the systems and their physical configuration, and contains the following information:
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System Specifications
Memory Configurations
The 2500 series is available in four fixed-configuration network-interface options, which are listed in Table 1-1 and shown in Figure 1-2 through Figure 1-8.
Table 1-1 |
Network Interface Options |
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Token |
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Model |
Ethernet |
Ring |
Serial |
BRI |
Async |
Hub |
Product Type |
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2501 |
1 |
0 |
2 |
0 |
0 |
0 |
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2502 |
0 |
1 |
2 |
0 |
0 |
0 |
Multiprotocol router |
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2503 |
1 |
0 |
2 |
1 |
0 |
0 |
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2504 |
0 |
1 |
2 |
1 |
0 |
0 |
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2505 |
0 |
0 |
2 |
0 |
0 |
8 |
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Router/hub |
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2507 |
0 |
0 |
2 |
0 |
0 |
16 |
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2516 |
0 |
0 |
2 |
1 |
0 |
14 |
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2509 |
1 |
0 |
2 |
0 |
8 |
0 |
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2510 |
0 |
1 |
2 |
0 |
8 |
0 |
Router/access server |
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2511 |
1 |
0 |
2 |
0 |
16 |
0 |
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2512 |
0 |
1 |
2 |
0 |
16 |
0 |
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2513 |
1 |
1 |
2 |
0 |
0 |
0 |
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Dual LAN/ |
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2514 |
2 |
0 |
2 |
0 |
0 |
0 |
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multiprotocol router |
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2515 |
0 |
2 |
2 |
0 |
0 |
0 |
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Cisco 2500 Series Overview 1-1
The multiprotocol router is a fixed-configuration system that is ready for external network hardware connections and software configuration. The router system code operates from Flash memory by default. (For more information on system-code operation, see the section “System Operation Prerequisites” in the chapter “Preparing for Installation.”)
The network interface types include Ethernet 802.3 (AUI and RJ-45), Token Ring 802.5 (DB-9), synchronous serial, asynchronous serial, and Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI). The chassis can be rackor wall-mounted, or it can be placed on a table or desktop. Figure 1-1 shows the front of the router.
Figure 1-1 Router Front View
H1690
The Cisco 2500 series hub is available with 8, 14, or 16 hub ports supporting Ethernet interfaces. A single BRI port is supported with 14 hub ports. The hub system code operates from Flash memory by default. For more information on system-code operation, see the section “System Operation Prerequisites” in the chapter “Preparing for Installation.”
The Cisco 2500 series access server contains one or two asynchronous 68-pin SCSI-type connectors, depending on the access server model. Using a modular SCSI-type breakout cable (available from Cisco Systems), you can connect to 8 asynchronous serial devices. The modular SCSI-type breakout cable contains one 68-pin connector on one side of the cable and eight DB-25 connectors or RJ-45 connectors on the other side of the cable (depending on the type of cable you ordered). Therefore, if the Cisco access server contains one asynchronous 68-pin SCSI-type connector, using the modular SCSI-type breakout cable you can connect to eight asynchronous serial devices. If the
Cisco access server contains two asynchronous 68-pin connectors, you can connect to 16 asynchronous serial devices.
The access server interface types include Ethernet 802.3 (AUI), Token Ring 802.5 (DB-9), asynchronous serial, and synchronous serial. The chassis can be rack or wall-mounted, or it can be placed on a table or desktop.
Note This publication takes you through the initial hardware installation and selected maintenance procedures. Refer to the Router Products Getting Started Guide or the router products configuration publication for software configuration and operating information. To order UniverCD, Cisco’s library of product information in CD-ROM format, or printed documentation, refer to Ordering Cisco Documentation, which is in your warranty package.
1-2 Cisco 2500 Series Hardware Installation and Maintenance
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