Older Consoles RFU
The Remote Focus Unit (commonly called an RFU, pronounced arr-foo) for older consoles is a "riggers remote" control that allows basic remote control of the desk, to allow for turning channels on and off during the focusing process, patching and simple cue work.
With the older consoles desks, the RFU was either wired or wireless (see RRFU for details on the wireless version).
Troubleshooting
The most common problem with the RFU is an issue in the wiring. As the unit is moved extremely frequently during operation it is very common for the cable to wear out, particularly at the cable entry gland point.
The best solution to this is to reterminate the end of the cable inside the RFU unit. A pinout for the connections to the older consoles RFU can be found in the RFU section of the Wiki.
Knowledge Base: