A data synchronizer is provided for synchronizing data across two different clock domains in a manner that avoids additive jitter. A coupling assembly is operative associated with the lift module and adapted to extend therefrom to where the coupling assembly attaches to the convertible wheelchair. The traffic signal light includes a housing, a door assembly removably or movably attached to the housing and having an aperture for passing the light, and a securing bracket having a first end secured to the door assembly and a second end secured to the LED lamp module, for maintaining an alignment between the door assembly and the LED lamp module. The voltage requirement determination and voltage feedback generator module is configured to output a feedback voltage signal having a voltage level as a function of at least the indicator. If the network address of the client is not listed in the table, the server determines if a client limit has been met or exceeded. Thirty two bit addressing is used in the PCI function call routines to allow for 4 GB addressing.