sr570_rs232 interface rs232 tty "" "" 9600 8 N 2 N 0x0d0a 0x0d0a -1 0x0 /dev/ttyS0 sr570 device amplifier sr570 "" "" 1e3 0 0 sr570_rs232 0 5 0.03 0.03 0 0 timer1 device timer soft_timer "" ""