Cisco Systems OL-27407-01 manual Rtc

Chapter 1 Product Overview

Cisco C891 Series ISRs

Table 1-37	Hardware Features Available in Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series ISRs (continued)
Feature		Description	860 Series	880 Series	890 Series
Embedded		Provides Wi-Fi CERTIFIED™ 802.11a/b/g/n compliance.	Wireless	Wireless	Wireless
wireless AP		The Cisco 860 series routers contain a single 802.11b/g/n	models	models	models
		radio.	802.11b/g/n	802.11b/g/n9	802.11b/g/n
		Some Cisco 880 series routers contain a single 802.11b/g/n		and	and
		radio while others contain dual 802.11a/n and 802.11b/g/n
				802.11a/n10	802.11a/n
		radios.
		The Cisco 890 series routers contain dual 802.11b/g/n and
		802.11a/n radios.
FE WAN port		Provides connection to 10/100BASE-T. Can be connected to	861	881	891, 892,
		other network devices, such as a cable modem, an xDSL11			892F
		modem, or router. The router is capable of bridging and
		multiprotocol routing between the LAN and WAN ports.
GE WAN port		10/100/1000 GE WAN Port.	866VAE,	—	All models
			867VAE,
			866VAE-K9,
			867VAE-K9
VDSLoPOTS12		Provides connection to a VDSL network.	—	887V	—
port
ADSLoPOTS		Provides ADSL connection over basic telephone service	—	—	—
		with Annex A and Annex B ITU G. 992.1 (ADSL), G.992.3
		(ADSL2), and G.992.5 (ADSL).
ADSLoISDN		Provides ADSL connection over ISDN.	—	—	—
DSL Multi-mode		Provides ADSL2/2+ or VDSL connection over POTS or	866VAE,	886VA,	892FSP,
(VDSL and		ISDN (ISDN on 886VA only).	867VAE,	887VA,887V	896VA,
ADSL2/2+)			866VAE-K9,	A-M	897VA,
			867VAE-K9		897VAM,
					897VAW,
					897VAMW,
					898EA
Real-time clock		RTC provides nonvolatile date and time when the router is	866VAE,	All models	All models
(RTC)		powered on. The RTC is used for verifying the validity of the	867VAE,
		Certification Authority stored on the router. It is backed up	866VAE-K9,
		by a nonreplaceable lithium battery.	867VAE-K9

	Cisco Integrated Services Router Hardware Installation Guide
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