User's Manual

DEC. 2011—EFT REVIEW DRAFT—CISCO CONFIDENTIAL
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Cisco 1240 Connected Grid Router Hardware Installation Guide
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Chapter 2 Router Hardware Description
Hardware Features Detailed Description
Figure 2-21 Router USB Ports
The router features two standard USB 2.0 ports for connecting and powering optional USB peripheral
devices. These ports also support USB devices that are powered by an external source, such as an AC
adapter or batteries, when the connected device consumes 2.5 or less power per port.
These ports are labeled as follows (see Figure 2-21)
• 1 2
The USB ports operate at the following speeds:
• 1 Mbps
• 12 Mbps
• 480 Mbps
Connection Considerations
• Depending on the USB devices you connect to these ports, you might require a USB extension cable
to connected devices to these ports.
• To prevent connected USB devices from being stolen or accidently removed, secure any connected
USB device with a locking mechanism designed for this purpose
Specifications
Specification Description
USB Port Type Type A
USB Device Types Supported USB 1.1, USB 2.0
Power Output 2.5W (+5V +/-5% @ 500mA) per port