Cisco Headend Digital Broadband Delivery System User Guide

4002178 Rev C 

Channel Selection Options 

3-21 

 Continued 

 

To illustrate the dual source concept, assume that in your network you have two 

services:  NBC analog and NBC digital. The analog NBC service uses source ID 1001. 

The digital NBC service uses source ID 2001. You want one-way CableCARD hosts 

to tune to the analog source ID (1001). You want the all other devices to tune to the 

digital source ID (2001). 
To specify two sources for a single SAM service, you need to modify the Set Up SAM 

Service window as follows: 
• 

Modify the existing Application URL to include the CCCM_SRC=#### (where 

#### is the source ID of the service that you want the CableCARD host to 

display). In our example, the URL would be  

bfs://resapp/watchtv;CCCM_SRC=1001. 

• 

Confirm that the number in the Parameter field is the source ID of the service that 

you want the set-top to display. In our example, the source ID would be 2001.