Merlin Legend 511A Control Unit
- Stock# 403J
This is the main control unit for the Legend phone system. The control unit (model 511A) aka main backplane holds the power supply and expansion modules, can be expanded by adding on an expaansion backplane. It has a slot for the processor and five additional slots for lines, stations, voicemail, etc. The image displayed is for illustrative purposes only and may not be the product listed.