Interface
3508 MMS ECM - Abaco Systems Inc
The 3508 Electrical Conversion Module (ECM) provides six (6) RS-232 outputs and ten (10) RS-232 inputs. Built around Maxim 1488 & 1489 chips for true RS232 levels and voltage tolerance, all outputs come up in the 1, mark or idle state. Electrically this is a negative output voltage, the start bit is always a 0 or a positive voltage level.
