Abstract: A method and system for emulating the optical behavior of an optical communications generates wavelength modeled objects for each emulated optical signal and a variety of other modeled objects for the optical communications modules of the emulated system such as transmitter modeled objects, a combiner modeled object, an amplifier modeled object, a splitter modeled object, and receiver modeled objects. Each of the modeled objects includes certain optical attributes and a behavior modeling function particular to the module being emulated. The optical modules themselves are also represented as emulated processes. The modeled objects are propagated along a logical path from emulated process to emulated process. Upon receipt of a modeled object the emulated process executes the behavior modeling function and updates modeling objects affected by the execution.

Abstract: A method and apparatus for automatic downloading and updating of network element software profile files (SPF's) and network element module software images. Embodiments of the invention provide a software routine and system which is executable through the network management system. The utilization of the software routine allows for updating SPF's and software images in the NCP and other modules within the network, while minimizing the interruptions in the data flow. This is accomplished by utilizing a primary and secondary SPF. The updated profile is downloaded as the secondary SPF and secondary images are reconciled with the new secondary SPF. This same operation is then performed with other modules in the network. Upon reconciliation of SPF and software images, the secondary SPF and software images are switched with the primary SPF and software images within the NCP and modules, thereby updating the entire system.

Abstract: A wrapping machine which includes a film former for shaping a continuous film of packaging material into a continuous tube, a film drive for drawing the continuous film of packaging material past the former and past a cutting and sealing station, a product infeed drive for feeding products to be packaged through the former into the continuous tube of packaging material so that the products are spaced apart from one another in the tube, and a motor-driven rotary cut/seal head at the cutting and sealing station for cutting and sealing the continuous tube of packaging material as each product moves through that station. The wrapping machine also includes independent closed-loop servo-control circuits for the film drive, the product infeed drive, and the cut/seal head drive, each of which is responsive to a desired velocity control signal.

Abstract: A horizontal wrapping machine which includes a former for shaping a continuous film of packaging material drawn past the former into a continuous tube, a film drive for drawing the continuous film of packaging material past the former and past a cutting and sealing station, a product infeed drive for feeding products to be packaged through the former into the continuous tube of packaging material so that the products are spaced apart from one another in the tube, and a pair of motor-driven cut-heads at the cutting and sealing station for cutting and sealing the continuous tube of packaging material as each product moves past the cutting and sealing station. The horizontal wrapping machine further includes independent closed loop servo control circuits for the film drive, product infeed drive, and cut-head drive, each of which are responsive to a desired velocity control signal.