© 2005 Cisco Systems, Inc. All rights reserved.
Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.com.
Page 10 of 16
The Advanced Enterprise software image has all the features of Advanced IP Services and Advanced Security software images, with the addition
of the below features.
Table 6. Cisco IOS Software Features on Cisco 870 Series Routers—Advanced Enterprise Services Feature Set
(Optional Software Upgrade on Cisco 876 Only)
Feature Description
High-Availability Features
Integrated dial backup for ADSL using ISDN S/T port
Table 7. Hardware Specifications
Feature Specification
Default DRAM 128 MB
Maximum DRAM 256 MB
Default Flash Memory 24 MB (28 MB for Advanced IP Services Feature Set)
Maximum Flash Memory 52 MB
WAN • 871: 100 MB Ethernet
• 876: ADSL over ISDN (ADSL2/ADSL2+)
• 877: ADSL over analog telephone lines (ADSL2/ADSL2+)
• 878: G.SHDSL (2- and 4-wire support)
• 3 Mbps IMIX aggregate performance for Cisco 878
LAN Switch Managed 4-port 10/100BASE-T with autosensing MDI/MDX (Media Device In/Media Device Cross Over)
for autocrossover
802.11b/g WLANs Optional on all models
Console Port RJ-45
USB 2.0 Ports For
Advanced Security Features
Such as security tokens
• 2 USB 2.0 ports on Cisco 871 only
• USB 2.0 ports cannot be used for connecting external devices other than those specified for the Cisco 871
ISDN Basic Rate Interface
(BRI) S/T
Only available on:
• Cisco 876 for out-of-band management and dial backup
• Cisco 878 for out-of-band management
LEDs PPP, VPN, ADSL, G.SHDSL, WLAN, LAN
External Power Supply Universal 100 to 240 VAC
Inline PoE Optional external adapter for inline PoE for IP phones or external wireless access points
DSL Specifications ST-Micro DynaMiTe (formerly Alcatel Micro Electronics) ADSL Chipset (20190)
• T1.413 ANSI ADSL DMT issue 2
• G.992.1 ITU G.DMT support
• G.992.3 ITU G.hs ADSL type negotiation
• G.992.3 (ADSL 2)/G.992.5 (ADSL2+)
• DSL Forum TR-067
The chipset does not provide interoperability with carrierless amplitude modulation/phase modulation (CAP)-based
ADSL lines.
