Chapter 1 Product Overview
Hardware Features
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
•Cisco 896VA
•Cisco 897VA
•Cisco 898EA
Power Supply
The Cisco 892FSP has a single +12V power supply input. The Cisco 892FSP power connector is different from the
The Cisco 896VA, 897VA, and Cisco 898EA use PoE (12 VDC 43 W,
Power over Ethernet Module
The Cisco 880 series ISRs can include an optional Power over Ethernet (PoE) module that provides power to
The Cisco 890 series ISRs can include an optional PoE module that provides power to
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.
Note The Cisco 880 series ISRs with embedded WLAN antennas require a single external power supply: a
30W power supply for
The following PoE budget is available:
•
•Cisco 880 series: 30.8 W (2 ports each 15.4 W)
•Cisco 890 series: 61.6 W (4 ports each 15.4 W)
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| Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide |
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