TheGSA-RS232 Central Interface module is an professional alternative for the GSA-055. This interface can also be used to connect the instruments with the computer. While the GSA-055 this handles via USB does this box this via a standard serial port. The GSA-RS232 can hold 4 strings of modules. Each string can have up to 16 modules connected, so a total of 64 modules can be attached. A module can be a gauge, a Input / Output device or a radio module. For normal operations, 1 GSA-RS232 interface module is enough. Only when you want to drive the gauges by PMsystems from Project magenta, will you need another interface module. This is due to the fact that each interface needs his own port. The interface is powered by any PC power outlet (NOT included) or one ofour power supplies and runs on 5/12 v. A SUB-D 9-pin male / female cable is needed to connect this interface to a standard serial port. The serial port could also be a serial port server, like a Moxa box. By doing this it is possible to drive our gauges via LAN!