Data architectures provide for managing Quality of Service andor bandwidth allocation in a RegionalAccess Network that provides end-to-end transport between a Network Service Provider andor an Application Service Provider, and a Customer Premises Network that includes a Routing Gateway. The rigid frame spans across a top portion of a cooling tower and is axially registered with the passageway for receiving a unidirectional convection air stream upwardly therethrough. The first and second upsetting surfaces adjoin one another at a first slant angle. The first data scheduler includes one or more routines for prioritizing first type of traffic above the second type of traffic when the network device is in a first operational mode, and prioritizing the second type of traffic above the first type of traffic when the network device is in a second operation al mode. A level comparator unit compares the levels of the received signals output from the receiver circuits. Other products, assemblies, and associated methods are also disclosed.