1-21
Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide
OL-16193-03
Chapter 1 Product Overview
Hardware Features
FE WAN port Provides connection to 10/100BASE-T. Can be connected to
other network devices, such as a cable modem, an xDSL
6
modem, or router. The router is capable of bridging and
multiprotocol routing between the LAN and WAN ports.
861 models 881 models All models
GE
7
WA N p ort 10/100/1000 GE WAN Port. — — All models
VDSL2oPOTS
8
port
Provides connection to a VDSL2 network. — 887V —
ADSL2+oPOTS 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 (ADSL2+)
867
models—
887
models887
V
—
ADSL2+oISDN Provides ADSL connection over ISDN. — 886
models886
—
Real-time clock
(RTC)
RTC provides nonvolatile date and time when the router is
powered on. The RTC is used for verifying the validity of the
Certification Authority stored on the router. It is backed up
by a nonreplaceable lithium battery.
— All models All models
USB port Supports high-speed USB 1.1. Provides connection for USB
devices such as security tokens and flash memory.
The Cisco 880 series routers have a single USB port; the
Cisco 890 series routers have two USB ports.
— All models All models
PoE
9
(Optional) Provides power for 802.3af-compliant devices
(such as phones) that are connected to the router.
The Cisco 880 series routers support a 2-port PoE module;
the Cisco 890 series routers support a 4-port PoE module.
— Models with
PoE
Models with
PoE
G.SHDSL
10
port Provides 2-wire or 4-wire connection to a G.SHDSL
network.
— 888 models —
3G
11
card slot Provides backup data link. — 3G models —
Dying gasp Detects when the router is about to lose power, and sends a
power-fail signal to warn the DSLAM
12
about the
impending line drop.
— xDSL
models
—
Data BRI port Provides backup and remote management functions by
connecting to the ISDN service provider if the main
VDSL2
13
or G.SHDSL link fails.
— xDSL
models,
except for
the 3G and
SRST
14
models
892 models
V.92 modem Provides dial backup and remote management functions if
the main WAN link fails.
— — 891 models
FXO
15
port An FXO interface connects local calls to a central office or
PBX. This is the interface a standard telephone provides.
— 881 SRST
models
—
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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