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REVIEW DRAFT—CISCO CONFIDENTIAL
1-2
Cisco 1805 DOCSIS Cable Router Hardware Installation Guide
OL-14661-01
Chapter 1 Product Description
Hardware Features
The Cisco cable modem HWIC installed in slot 0 is designed to be fully compliant with DOCSIS 2.0
standards in the United States, Europe, and Japan. The cable modem HWICs provide secure, high-speed
connections over cable modem hybrid fiber-coaxial (HFC) cable network.
With the Cisco 10/100BASE-T Ethernet switch HWIC installed in slot 1, the Cisco 1805 cable router
provides Layer 2 switching for traffic between one port on the HWIC and any other port on the same
HWIC. This HWIC also supports Layer 3 traffic to and from the HWIC and any of the other platform
interfaces. Traffic between different VLANs on the switch is routed through the router.
Hardware Features
This section describes the basic features of the Cisco 1805 cable router. It contains the following:
• Product Serial Number Location, page 1-2
• Built-In Interfaces, page 1-3
• Memory, page 1-3
• LED Indicators, page 1-4
• Chassis Ventilation, page 1-4
• Real-Time Clock, page 1-4
• Chassis Security, page 1-5
Product Serial Number Location
The serial number label for Cisco 1805 cable router is located on the back of the chassis, below interface
card slot 0. (See Figure 1-2.)
Figure 1-2 Serial Number Location
Note The serial number for Cisco 1805 cable router is 11 characters long.
122334
SN: AAANNNNXXXX
SN: AAANNNNXXXX
CISCO 1841
100-240 VAC-
1 A
50/60 Hz