CAS NT-580A, Manual, Page: 73 / 87

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9-2. RS-485 Serial Interface
▣ Transmit Mode : Same as RS-232C
F27 Baud Rate 600,1200, 2400, 4800, 9600, 19200bps
F30 Output Mode Stable, Unstable, Data is required
▣ Signal Format : : Same as RS-232C
1 20 mA
0 0 mA
▣ Data Format : : Same as RS-232C
RS
▣
-485 Pin Connection
IN(+) 1 O -------------- O 2 Transmit Data(+)
OUT(-) 4 O -------------- O 15 Receive Data(-)
IN(-) 5 O -------------- O 14 Transmit Data(+)
OUT(+) 6 O -------------- O 3 Receive Data(-)
GND 7 O ----------- ┌─ O 1 Ground
└─ O 7 Ground
--- O 4,5,6,8 Wire Connect
--- O 16,17,18,19 Wire conn.
9 pin port(Male) 25 pin port(Female)
RS-232C port of NT-580A Serial port of computer