Destination Configuration
Destination configuration for tielines involves assigning (1) or more tieline pools to destinations the user wishes to use non-local source signals on. For instance, a typical router can support analog and digital video signal formats. If the user wishes to enable a digital output use analog sources, he must encode a tieline pool on the analog level. This is a very important step and should not be overlooked.
The user can create more than one tieline pool for the same level pair. For example, the user may have (2) areas in the station that need to use analog sources on digital outputs. Tielines are a finite resource, and it is possible to request too many analog sources on digital outputs. When this occurs, the last switch is denied as there are no more converting tielines to connect the source with. This could be a problem as the first area within the station could request (and use) all the tielines, leaving none for the 2nd area in the station. The solution is to create more than (1) tieline pool and dedicate each one to a specific area of the plant; for example, (1) pool for news and another for on-air operations. This would allow each area to manage their own use of tielines without competing with other areas of the plant.
(2) tieline pools have been created at this point. Digital router outputs used in the news area are encoded to use tieline pool 1. Digital router outputs used in the on-air area are encoded to use tieline pool 2.