Table Of Contents
Specifications and Cables
This appendix provides system, port, and cabling specifications for the Cisco 831 and SOHO 91 routers.
System Specifications
Table A-1 outlines the system specifications for the routers.
For information on regulatory compliance, refer to the Regulatory Compliance and Safety Information for Cisco 800 Series and SOHO Series Routers document that was shipped with your router.
Warning
Ultimate disposal of this product should be handled according to all national laws and regulations.
LAN Port
The Cisco 831 and SOHO 91 routers provide a fixed onboard LAN connection, which has a 10/100-Mbps wire-speed non-blocking switch controller that performs the 10BASE-T/100BASE-T Ethernet switch operation. The automatic medium dependent interface in normal mode (MDI)/medium dependent interface in crossover mode (MDIX) crossover function eliminates the need for crossover cables. Table A-2 provides pinouts for the Ethernet LAN port on the routers.
Table A-2 Ethernet LAN Port
Console Connector Pinouts
Table A-3 provides pinouts for console connector (for connecting a terminal or PC).
Table A-3 Console Connector Pinouts (RJ-45)
The console port is configured as a data communications equipment (DCE) device. The default parameters for the console port are as follows:
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Cabling Specifications
This section provides specifications for the following Ethernet cables, which you might need to provide:
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Thanks to the auto-crossover (autosensing) function, both straight-through and crossover cables can be used for the Ethernet LAN port.
Ethernet Cable Specifications
Table A-4 provides the specifications for straight-through and crossover Ethernet cables.
Table A-4 Ethernet Cable Specifications
10BASE-T
Category 3 or 5
100BASE-T
Category 5 or above
Maximum Cable Distance
Table A-5 provides the maximum distance of Ethernet cables that you can use to connect equipment to the router.
