C H A P T E R1-1Cisco 2600 Series Routers Hardware Installation GuideOL-2171-061Overview of Cisco 2600 Series RoutersCisco 2600 series routers are modular access routers with LAN and WAN connections that can beconfigured by means of interchangeable modules and WAN interface cards.This guide discusses the router models listed in Table 1-1.This chapter includes the following sections:• Hardware Features, page 1-1• Reading the Front-Panel LEDs, page 1-3• Reading the Rear-Panel LEDs, page 1-5• Interface Numbering, page 1-9• System Specifications, page 1-11• Regulatory Compliance, page 1-12Hardware FeaturesTable 1-1 lists the router models described in this guide and summarizes the LAN interfaces supportedon each model. These router models are similar in functionality, but differ in the number of interfacesthat are supported as well as the system specifications. (See Table 1-6.)Table 1-1 Summary of Cisco 2600 Series LAN InterfacesModelEthernet(10BASE-T)Token Ring(RJ-45)Fast Ethernet(10/100)NetworkModule SlotWAN InterfaceCard SlotsAdvancedIntegrationModule SlotsCisco 2610 1 — — 1 2 1Cisco 2610XM — — 1 1 2 1Cisco 2611 2 — — 1 2 1Cisco 2611XM — — 2 1 2 1Cisco 2612 1 1 — 1 2 1Cisco 2613 — 1 — 1 2 1Cisco 2620 — — 1 1 2 1Cisco 2620XM — — 1 1 2 1Cisco 2621 — — 2 1 2 1