The 2216 is a discontinued communication module from CONTROL TECHNOLOGY INC, featuring 2 channels for RS-232 and 1 channel for RS-485 interfaces, operating with a 5VDC power supply.
The 2216 is a discontinued communication module from CONTROL TECHNOLOGY INC, featuring 2 channels for RS-232 and 1 channel for RS-485 interfaces, operating with a 5VDC power supply.