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Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide
OL-16193-04
Chapter 1 Product Overview
Hardware Features
V.92 modem Provides dial backup and remote management functions if
the main WAN link fails.
— — 891
FXO
14
port An FXO interface connects local calls to a central office or
PBX. This is the interface a standard telephone provides.
— 881 SRST —
FXS
15
/DID
16
port
An FXS interface connects directly to a standard telephone,
fax machine, or similar device. This interface supplies
ringing voltage and dial tone to the station.
—SRST
models
—
BRI voice port The ISDN BRI S/T voice interface provides a client-side
(TE) ISDN S/T physical interface for connection to an NT1
device that terminates an ISDN telephone network.
— 887V —
SFP
17
port Supports auto-media-detection, auto-failover, and remote
fault indication (RFI), as described in the IEEE 802.3ah
specification.
See the Cisco 892F data sheet for a list of supported SFPs.
— — 892F models
1. FE = Fast Ethernet.
2. MDI = media-dependent interface in normal mode.
3. MDIX = media-dependent interface in crossover mode.
4. VPN = Virtual Private Network.
5. IPsec = IP security.
6. xDSL = General term referring to various forms of DSL, including ADSL (asymmetric digital subscriber line), VDSL (very-high-data-rate digital
subscriber line), and G.SHDSL.
7. GE = Gigabit Ethernet.
8. VDSLoPOTS = very-high-data-rate digital subscriber line 2 over plain old telephone service.
9. PoE = Power over Ethernet. This function can be added to an 880 or 890 series router by installing the PoE adapter card in the router and inserting the
PoE 48-V external power adapter.
10. G.SHDSL = (global industry standard) symmetrical high-speed DSL.
11. 3G = Third-Generation.
12. DSLAM = digital subscriber line access multiplexer.
13. SRST = Survivable Remote Site Telephony.
14. FXO = Foreign Exchange Office.
15. FXS = Foreign Exchange Station.
16. DID = Direct Inward Dialing.
17. SFP = small-form-factor pluggable.
Table 1-4 Hardware Features Available in Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series ISRs (continued)
Feature Description 860 Series 880 Series 890 Series
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