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Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide
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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 barrel-type connector on other 890 series models. The AC adapter cable connector has
four pins and a built-in locking mechanism. Figure 3-27 shows the power adapter connector.
The Cisco 896VA, 897VA, and Cisco 898EA use PoE (12 VDC 43 W, -54 VDC 80 W) and non-PoE
(12 VDC 60 W) power supplies.

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.
Note The Cisco 880 series ISRs with embedded WLAN antennas require a single external power supply: a
30 W power supply for non-POE-enabled routers or a 60 W power supply for POE-enabled routers. For
the back panels of some of these routers, see Figure 1-19 and Figure 1-21.
The following PoE budget is available:
•C867VAE-POE-W-A-K9: 15.4 W (one port PoE)
•Cisco 880 series: 30.8 W (2 ports each 15.4 W)
•Cisco 890 series: 61.6 W (4 ports each 15.4 W)