The F35 General Electric Multiple UR Series Universal Relay Multiple Feeder Management System F35-G00-HCH-F8F-H6P-M8H-P6P-UXX-WXX contains modules that are specified by variable order options. The breakdown of different order options for each module is contained in the F35 catalogue manual. The F35 universal Multilin relay can either be a horizontal 19 inch mount or a vertical mount that is about three quarters of the size of the horizontal mount. The H order option specifies the horizontal mount. If instead an A occurs at the H position in the model number (F35-***-A**- for example) then this means the horizontal mount is equipped with a harsh coating for more severe environmental situations. The CPU is specified at the first position after the base part (F35-*-). In this case, this F35 multiple feeder management universal relay is a F35-G specification. This means that the CPU is a RS485 with a multi-mode ST 10Base-F feature. CPU means the central processing unit of the F35 universal GE Multilin relay such as the UR Series Multiple Feeder Management System F35-G00-HCH-F8F-H6P-M8H-P6P-UXX-WXX. The part number continues to specify the power supply variations.