Cisco 881G Hardware Installation Guide - Page 39

USB Port, Fan, Power over Ethernet Module, 3G Cellular Data WAN Connectivity, Models - 3g card

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Page 39 highlights

Chapter 1 Product Overview Hardware Features Table 1-7 Main onboard memory storage Models Onboard Memory Storage Expandibility Cisco 860 series routers 256 MB Not expandable Cisco 860VAE series routers 256 MB Not expandable Cisco 880 series routers 256 MB (expandable to 768 MB) A memory expansion slot accommodates a PC2-4200, 256-MB or 512-MB double data rate 2 (DDR2) SODIMM, for a maximum of 768 MB. USB Port The Cisco 880 series routers have a single Universal Serial Bus (USB 1.1-compliant) port located on the front panel. The USB port provides connection for USB devices such as security tokens and flash memory. The Cisco 890 series routers have two USB 1.1-compliant ports located on the front panel. The Cisco 860VAE series routers have one USB 2.0-compliant port located on the back panel. The Cisco 860VAE series router USB port does not support eToken. 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. Power over Ethernet Module The Cisco 880 series ISRs can include an optional Power over Ethernet (PoE) module that provides power to 802.3af-compliant devices connected to FE ports 0 and 1. The Cisco 890 series ISRs can include an optional PoE module that provides power to 802.3af-compliant devices connected to FE ports 0, 1, 2, and 3. The PoE module is an option available only for the Cisco 880 series and 890 series ISRs and requires a 48-V external power adapter. 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. 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 mobile environment. Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide OL-16193-07 1-25

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Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide
OL-16193-07
Chapter 1
Product Overview
Hardware Features
USB Port
The Cisco 880 series routers have a single Universal Serial Bus (USB 1.1-compliant) port located on the
front panel. The USB port provides connection for USB devices such as security tokens and flash
memory.
The Cisco 890 series routers have two USB 1.1-compliant ports located on the front panel.
The Cisco 860VAE series routers have one USB 2.0-compliant port located on the back panel. The Cisco
860VAE series router USB port does not support eToken.
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.
Power over Ethernet Module
The Cisco 880 series ISRs can include an optional Power over Ethernet (PoE) module that provides
power to 802.3af-compliant devices connected to FE ports 0 and 1.
The Cisco 890 series ISRs can include an optional PoE module that provides power to 802.3af-compliant
devices connected to FE ports 0, 1, 2, and 3.
The PoE module is an option available only for the Cisco 880 series and 890 series ISRs and requires a
48-V external power adapter.
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.
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 mobile environment.
Table 1-7
Main onboard memory storage
Models
Onboard Memory Storage
Expandibility
Cisco 860 series routers
256 MB
Not expandable
Cisco 860VAE series routers
256 MB
Not expandable
Cisco 880 series routers
256 MB
(expandable to 768 MB)
A memory expansion slot accommodates
a PC2-4200, 256-MB or 512-MB double
data rate 2 (DDR2) SODIMM, for a
maximum of 768 MB.