The 105001 from AVE is a Regcom is an interface device that allows the connection of multiple cash register terminals to a master unit for the purpose of transaction logging.
The Regcom receives RS-232 data from cash register, VSI-Pro, Interface adapter, or ECR interface card insode the cash register. It then stores this data in its buffer before sending it on to the master unit via the RS-485 network.
The Regcom is a "slave" device. One master device can be connected to a maximum of 16 slave devices. Only one master device can exisit on a single network.