A network prevents unauthorized users from gaining access to confidential information. An explosion proof video and data communication module includes features that prevent the generation of a spark or other ignition sources that could ignite explosive dust, gas or vapors in the air. In one embodiment, the present invention provides an alkaline electrodeposition solution that includes an In salt, a Se acid or oxide, a tartrate salt as complexing agent for the In species, and a solvent to electrodeposit an In\u2014Se film possessing sub-micron thickness on a conductive surface. The closure also comprises an abutment member including a guide surface for guiding the sealing strip towards the neck finish as the closure is applied, to increase the strength of the seal.