Cisco 881w Manual

 
1-141
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series
Because the LED indicators are shared, the LED illuminates (green) when either port is active. For 
example, the LED indicator labeled BRI 1 B1 illuminates when either the BRI1 B1 channel is active or 
when the FXS port is active.   You can determine the activity status on each interface by using the 
following commands.
For activity status on the FXS ports, use the show...

 
1-142
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series
NoteFlash memory is not upgradable. An external USB flash memory module may be used if additional flash 
memory is needed.
Main Memory
Ta b l e 1 - 4 9 describes the main onboard memory storage for different router models.
USB Port
Ta b l e 1 - 5 0 describes the USB ports for different router models.
Table 1-49 Main Onboard Memory Storage
Models Onboard Memory Storage...

 
1-143
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series
Fan
Some router models do not have a fan, while other models have either one or two fans. 
The fans spin at full speed, as a diagnostic aid, immediately after the router is powered up. After the 
router has booted, the fans spin as fast as necessary to minimize fan noise while maintaining a safe 
internal operating temperature.
The following models have no fan:
Cisco 892FSP...

 
1-144
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series
3G Cellular Data WAN Connectivity
The 3G (Evolution Data Only [EVDO], Universal Mobile Telecommunications Systems [UMTS]) 
cellular interface is intended for use as a backup data link, but it can also be used as a primary WAN data 
link. The 3G technology is third-generation wide-area cellular technology that is used in voice telephony 
and broadband wireless data in a...

 
1-145
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series
Supported Cisco Radio Antennas 
The Cisco 891, Cisco 892, and Cisco 892F come with three removable dipole antennas that can be 
replaced using the Cisco approved antenna extenders listed in Ta b l e 1 - 5 2.
NoteCisco supports only the antennas listed in Ta b l e 1 - 5 2 with the Cisco 890 series dual-band radio module. Single-band 
802.11b/g/n 
radio moduleCisco 880 series...

 
1-146
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series
Small Form-Factor Pluggable Port
The SFP 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.
Feature Summary
Ta b l e 1 - 5 3 summarizes the hardware features available in the Cisco 860 series, Cisco 880 series, and 
Cisco 890 series...

 
1-147
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series
Embedded 
wireless APProvides Wi-Fi CERTIFIED™ 802.11a/b/g/n compliance. 
The Cisco 860 series routers contain a single 802.11b/g/n 
radio. 
Some Cisco 880 series routers contain a single 802.11b/g/n 
radio while others contain dual 802.11a/n and 802.11b/g/n 
radios.
The Cisco 890 series routers contain dual 802.11b/g/n and 
802.11a/n radios.Wireless 
models...

 
1-148
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series
USB port, Supports 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.
Cisco 880 series routers with embedded WLAN antennas 
have one USB 2.0 port.
Cisco 892FSP and Cisco 860VAE series routers have one 
USB 2.0 port on the rear panel for...

 
1-149
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series
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
21 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...

 
1-150
Cisco Integrated Services Router Hardware Installation Guide
 
Chapter 1      Product Overview
  Cisco 860, 880, 890 Series