CAS NT-501A - Options

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13. Options
OP - 1 RS-422 Serial Interface
▣ Transmission mode : Same as RS-232C interface
▣ Signal format : Same as RS-232C
▣ Data format : Same as RS-232C
▣ Connecting method of RS-422 port
9 pin port (Female) 25 pin port (Female)
RS-485 port of NT-500series Serial port of computer
OP - 2 BCD Output Interface
Parallel BCD output is the interface that transmits the weight as BCD code.
Inner circuit of input/output circuit is electronically disconnected by photo-coupler.
IN(+) 1ㅇ --------------------------------- ㅇ 2 Transmit Data(+)
OUT(-) 4ㅇ --------------------------------- ㅇ 15 Receive Data(-)
IN(-) 5ㅇ --------------------------------- ㅇ 14 Transmit Data(-)
OUT(+) 6ㅇ --------------------------------- ㅇ 3 Receive Data(+)
GND 7ㅇ ----------------------------┌─ ㅇ 1 Ground
└─ ㅇ 7 Ground
--- ㅇ 4,5,6,8 Wire Connect
--- ㅇ 16,17,18,19 Wire conn.