Specifications include, but are not limited to: ITEM DESCRIPTION "Digital Tap-Changer Controller to control, manually or automatically, the On Load Tap-Changer of a substation power transformer. This controller shall have the following features: 1. 60 Hz Operating Frequency 2. 20 character by 2 row LCD display 3. Serial communication connections: RS-232, RS-485, and ST fiber 4. Ethernet (10/100 Base T) connection: ST fiber Beckwith Electric Co. MN: M-2001D-6L4S20F0S00 " "Mounting panel for a Beckwith series M-2001 Digital Tap-Changer Controller. This mounting panel shall have the following features: 1. SCAMP SCADA controlled Auto/Manual Pushbutton 2. SCADA cut-out switch Beckwith Electric Co. MN: M-2270B-PC " "Mounting panel with Auto/Manual Switch Detection Cable for a Beckwith series M-2001 Digital Tap-Changer Controller. Beckwith Electric Co. MN: M-2067B with B-1210 cable "
