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cable downstream rf-shutdown
cable downstream rf-shutdown
To disable the RF output from an integrated upconverter on the Cisco uBR7100 series router,
Cisco uBR-MC16U, Cisco uBR-MC28U or the Cisco uBR10-MC5X20S/U cable interface line card, use
the cable downstream rf-shutdown command in cable interface configuration mode. To enable the RF
output on the integrated upconverter, use the no form of this command.
Syntax Description
This command has no arguments or keywords.
Defaults
RF output is disabled.
Command Modes
Interface configuration (cable interface only)
Command History
Release
12.1(5)EC1
12.2(11)CY,
12.2(11)BC3
12.2(15)CX
12.2(15)BC2
Usage Guidelines
By default, the integrated upconverter on the Cisco uBR7100 series router, Cisco uBR-MC16U,
Cisco uBR-MC28U, and the Cisco uBR10-MC5X20S/U cable interface line cards is disabled, and the
downstream port does not output any signal. The no form of this command enables the integrated
upconverter, allowing it to output an RF signal through the downstream port.
However, before a valid DOCSIS downstream signal can be output, the following must also be done:
•
•
This command does not affect the IF output from the DS0 downstream port on the Cisco uBR7100 series
Note
router. The Cisco uBR10-MC5X20S/U, Cisco uBR-MC16U, and Cisco uBR-MC28U cable interface
line cards do not provide IF output for their downstream ports.
Cisco Broadband Cable Command Reference Guide
2-64
cable downstream rf-shutdown
no cable downstream rf-shutdown
Modification
This command was introduced to provide support on the integrated
upconverter on the Cisco uBR7100 series router.
Support was added for the Cisco uBR10-MC5X20S cable interface line card
on the Cisco uBR10012 router.
Support was added for the Cisco uBR-MC16U and Cisco uBR-MC28U
cable interface line card.
Support was added for the Cisco uBR-MC5X20U cable interface line cards.
A valid downstream RF frequency must be configured using the cable downstream frequency
cable interface command.
The cable interface must be enabled using the no shutdown command on the cable interface.
Chapter 2
Cisco CMTS Configuration Commands
OL-1581-08
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