Cisco 2500 series

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1 Cisco 2500 series routers
- 1.1 Interface Bandwidth
- 1.2 Roles
2 Models available
3 CiscoPro Routers
4 RAM/FLASH
5 Software
6 History
7 References
8 External links

[edit] Cisco 2500 series routers

The Cisco 2500 series of routers are a series of 19" rack mount access routers typically used to connect ethernet or token ring networks via ISDN or leased serial connections (ie. Frame Relay, T1 etc). The routers are based on a Motorola 68EC030 CISC processor.^[1]

[edit] Interface Bandwidth

The Cisco 2500 series routers have Ethernet interface capable of 10Mps transmission, using an AUI to RJ-45 transceiver.

[edit] Roles

2500 series are able to function as DTE or DCE equipment based on IOS NVRAM configuration.

[edit] Models available

Fixed Configuration Routers
Model	Ethernet AUI	Token Ring	Serial (Sync)	ISDN BRI	Serial (Async)	Hub	Notes
2501	1 10Mbps	-	2	-	-	-	Multiprotocol Router
2502	-	1	2	-	-	-	Multiprotocol Router
2503	1 10Mbps	-	2	1	-	-	Multiprotocol Router
2504	-	1	2	1	-	-	Multiprotocol Router
2505	-	-	2	-	-	8 10Mbps	Router/hub
2507	-	-	2	-	-	16 10Mbps	Router/hub
2509	1 10Mbps	-	2	-	8	-	Router/access server
2510	-	1	2	-	8	-	Router/access server
2511	1 10Mbps	-	2	-	16	-	Router/access server
2512	-	1	2	-	16	-	Router/access server
2513	1 10Mbps	1	2	-	-	-	Dual LAN/multiprotocol router
2514	2 10Mbps	-	2	-	-	-	Dual LAN/multiprotocol router
2515	-	2	2	-	-	-	Dual LAN/multiprotocol router
2516	1 10Mbps	-	2	1	-	14 10Mbps	Router/hub
2520	1 10Mbps	-	2	1	2 Low-speed	-	Multiport serial routers
2521	-	1	2	1	2 Low-speed	-	Multiport serial routers
2522	1 10Mbps	-	2	1	8 Low-speed	-	Multiport serial routers
2523	-	1	2	1	8 Low-speed	-	Multiport serial routers

Semi-Modular Routers
Model	Ethernet AUI	Token Ring	Serial (sync)	ISDN BRI	Hub Module	Notes
2517	-	1	2	1	11 available after connection with router	Router/Token Ring Hub
2518	1 10Mbps	-	2	1	23 available after connection with router	Router/Ethernet Hub
2519	-	1	2	1	23 available after connection with router Two distinct rings available	Router/Token Ring Hub

Modular Routers
Model	Ethernet	Token Ring	Available WAN modules	Notes
2524	1 AUI or RJ-45	-	2-wire switched 56Kbps DSU/CSU 4-wire 56/64Kbps DSU/CSU Fractional T1/t1 DSU/CSU 5-in-one Serial (Sync) ISDN BRI (optional NT1) ISDN BRI with integrated NT1	3 WAN interface module slots: •2 Serial (Sync) •1 ISDN
2525	-	1 STP(DB-9) or UTP(RJ-45)	2-wire switched 56Kbps DSU/CSU 4-wire 56/64Kbps DSU/CSU Fractional T1/t1 DSU/CSU 5-in-one Serial (Sync) ISDN BRI (optional NT1) ISDN BRI with integrated NT1	3 WAN interface module slots: •2 Serial (Sync) •1 ISDN

[edit] CiscoPro Routers

These routers were offered at a reduced price due to their reduced software feature set. They are characterized by a light grey/cream colored case compared to the standard dark grey colouring

[edit] RAM/FLASH

The maximum ram able to be taken is 16MB. The maximum flash memory is 16MB. A boot ROM upgrade may be needed to use 16MB of flash.

The 2500 series uses 72pin FPM simms

[edit] Software

uClinux is a free software project that runs on the Cisco 2500. Originally when these units were manufactured, only the proprietary Cisco IOS software was available.