The 871-2 option board on PS873 power supply provides output voltage when an input such as card reader is activated. If 871-2 board is programmed for sequential operation when either input is activ...
RF sequential operation requires the use of of a minimum of 2 receivers (8310-865). Depending on the desired operation required (if using access control), it may require up to 4 receivers (8310-865...
Pneumatic Automatic Operators are used in areas where electrically operated devices are not convenient or permitted.
Consists of a modified, heavy-duty door closer for manual oper...