ttyS1   interface rs232 tty "" "" 9600 8 N 1 N 0x0d0a 0x0a 2 0x0 /dev/ttyS1
sim900  interface controller sim900 "" "" ttyS1 0x0
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port1 interface rs232 sim900_port "" "" 9600 8 N 1 N 0x0d0a 0x0a 5.0 0x0 sim900 1
sim960  device motor sim960 "" "" 0 0 -1000000 1000000 0 -1 -1 1 0 V port1 0x0
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port3 interface rs232 sim900_port "" "" 9600 8 N 1 N 0x0d0a 0x0a -1 0x0 sim900 3
sim980  device analog_input sim980 "" "" 0 0.0001 0 mV 0x0 0 "" port3
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port4 interface rs232 sim900_port "" "" 9600 8 N 1 N 0x0d0a 0x0a -1 0x0 sim900 4
sim983  device amplifier sim983 "" "" 1 0 0 port4