User guide

Release Notes for Cisco 2500 Series for Cisco IOS Release 12.0 T 3

Hardware Supported

Cisco IOS Release 12.0 T supports the Cisco 2500 series:

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

• Mission-speciﬁc, entry-level routers—Models 2501CF, 2502CF, 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

• Dual LAN routers—Models 2513, 2514 and 2515

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

For detailed descriptions of the new hardware features, refer to the “New and Changed Information”

section on page 14.

4 4 MB in Releases 12.0(1)T, 12.0(2)T, and 12.0(3)T.

5 6 MB in Releases 12.0(1)T, 12.0(2)T, and 12.0(3)T.

Table 2 Supported Interfaces for the Cisco 2500 Series

Interface, Network

Module, or Data Rate Product Description Platforms Supported

LAN Interfaces

Ethernet (AUI) Cisco 2501, 2503, 2509, 2511, 2513,

2514, 2520, 2522, and 2524 only

Ethernet (10BaseT) Cisco 2505, 2507, 2516, and 2524 only

4-Mbps Token Ring Cisco 2502, 2504, 2513, 2515, 2521,

2523, and 2525 only

16-Mbps Token Ring Cisco 2502, 2504, 2513, 2515, 2521,

2523, and 2525 only)

WAN Data Rates

48/56/64 kbps Cisco 2500 series

128 kbps Cisco 2500 series

1.544/2.048 Mbps Cisco 2500 series

WAN Interfaces

EIA/TIA-232 Cisco 2500 series

EIA/TIA-449 Cisco 2500 series

EIA-530 Cisco 2500 series

X.21 Cisco 2500 series

V.35 Cisco 2500 series

Serial, synchronous Cisco 2500 series

Serial, synchronous, and

asynchronous

Cisco 2520, 2521, 2522, and 2523 only

ISDN BRI S/T Cisco 2503, 2504, 2516, 2520, 2521,

2522, 2523, 2524, and 2525 only

ISDN BRI U Cisco 2524 and 2525 only