Input Voltage9 36 VDC, reverse polarity protection, surge protection
No. 2 RS485 serial port, the first one can also be
RS232 RS232 Terminal block connector: TX, RX
RS485 Terminal block connector: A, B
Baud rates600~230400 bps
DI2 x Digital non-isolated input (0 - 2 V detected as logic low, 9 - 36 V detected as logic high)
DO2 x Relays DC contacts rating @R (at resistive load) 10A / 28V DC AC contacts rating @R (at resistive load) 10A / 277V AC, NO AC contacts rating @R (at resistive load) 5A / 250V AC, NC