A medical electrical lead that includes a lead body having a lead body lumen, an electrode head assembly fixedly engaged with the lead body and having an electrode head assembly lumen communicating with the lead body lumen, and a conductor extending within the lead body lumen and the electrode head assembly lumen. A method includes creating a tunnel configured for transmitting data between the network elements and transmitting network management information over the tunnel using a network management protocol. The drive control system may be configured to control delivery of the power from the engine to the mobility assembly. Tag and other information can be included with a video file or associated with a video file and stored as a separate file or other data structure. A tool holster is also disclosed wherein the orientation of the pocket or tool holding element is canted or extended outwardly to enable workers to assume various positions comfortably with the tool holster.